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/* Copyright (C) 2000-2003 MySQL AB
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; version 2 of the License.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

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/* sql_yacc.yy */
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/**
  @defgroup Parser Parser
  @{
*/

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%{
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/* thd is passed as an argument to yyparse(), and subsequently to yylex().
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** The type will be void*, so it must be  cast to (THD*) when used.
** Use the YYTHD macro for this.
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*/
#define YYPARSE_PARAM yythd
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#define YYLEX_PARAM yythd
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#define YYTHD ((THD *)yythd)

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#define MYSQL_YACC
#define YYINITDEPTH 100
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#define YYMAXDEPTH 3200                        /* Because of 64K stack */
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#define Lex (YYTHD->lex)
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#define Select Lex->current_select
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#include "mysql_priv.h"
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#include "slave.h"
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#include "lex_symbol.h"
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#include "item_create.h"
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#include "sp_head.h"
#include "sp_pcontext.h"
#include "sp_rcontext.h"
#include "sp.h"
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#include "event_data_objects.h"
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#include <myisam.h>
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#include <myisammrg.h>
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int yylex(void *yylval, void *yythd);
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const LEX_STRING null_lex_str= {0,0};

#define yyoverflow(A,B,C,D,E,F)               \
  {                                           \
    ulong val= *(F);                          \
    if (my_yyoverflow((B), (D), &val))        \
    {                                         \
      yyerror((char*) (A));                   \
      return 2;                               \
    }                                         \
    else                                      \
    {                                         \
      *(F)= (YYSIZE_T)val;                    \
    }                                         \
  }
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#define MYSQL_YYABORT                         \
  do                                          \
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  {                                           \
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    LEX::cleanup_lex_after_parse_error(YYTHD);\
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    YYABORT;                                  \
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  } while (0)

#define MYSQL_YYABORT_UNLESS(A)         \
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  if (!(A))                             \
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  {                                     \
    my_parse_error(ER(ER_SYNTAX_ERROR));\
    MYSQL_YYABORT;                      \
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  }

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/*
  Work around for broken code generated by bison 1.875.

  The code generated by bison 1.875a and later, bison 2.1 and bison 2.2 is ok.
  With bison 1.875 however, the generated code contains:
<pre>
  yyerrlab1:
  #if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
    __attribute__ ((__unused__))
  #endif
</pre>
  This usage of __attribute__ is illegal, so we remove it.
  See the following references for details:
  http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00014.html
  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14273
*/

#if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
#undef __attribute__
#define __attribute__(X)
#endif

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#ifndef DBUG_OFF
#define YYDEBUG 1
#else
#define YYDEBUG 0
#endif

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/**
  @brief Push an error message into MySQL error stack with line
  and position information.

  This function provides semantic action implementers with a way
  to push the famous "You have a syntax error near..." error
  message into the error stack, which is normally produced only if
  a parse error is discovered internally by the Bison generated
  parser.
*/

void my_parse_error(const char *s)
{
  THD *thd= current_thd;
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  Lex_input_stream *lip= thd->m_lip;
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  const char *yytext= lip->get_tok_start();
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  /* Push an error into the error stack */
  my_printf_error(ER_PARSE_ERROR,  ER(ER_PARSE_ERROR), MYF(0), s,
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                  (yytext ? yytext : ""),
                  lip->yylineno);
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}

/**
  @brief Bison callback to report a syntax/OOM error

  This function is invoked by the bison-generated parser
  when a syntax error, a parse error or an out-of-memory
  condition occurs. This function is not invoked when the
  parser is requested to abort by semantic action code
  by means of YYABORT or YYACCEPT macros. This is why these
  macros should not be used (use MYSQL_YYABORT/MYSQL_YYACCEPT
  instead).

  The parser will abort immediately after invoking this callback.

  This function is not for use in semantic actions and is internal to
  the parser, as it performs some pre-return cleanup. 
  In semantic actions, please use my_parse_error or my_error to
  push an error into the error stack and MYSQL_YYABORT
  to abort from the parser.
*/

void MYSQLerror(const char *s)
{
  THD *thd= current_thd;

  /*
    Restore the original LEX if it was replaced when parsing
    a stored procedure. We must ensure that a parsing error
    does not leave any side effects in the THD.
  */
  LEX::cleanup_lex_after_parse_error(thd);

  /* "parse error" changed into "syntax error" between bison 1.75 and 1.875 */
  if (strcmp(s,"parse error") == 0 || strcmp(s,"syntax error") == 0)
    s= ER(ER_SYNTAX_ERROR);
  my_parse_error(s);
}


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#ifndef DBUG_OFF
void turn_parser_debug_on()
{
  /*
     MYSQLdebug is in sql/sql_yacc.cc, in bison generated code.
     Turning this option on is **VERY** verbose, and should be
     used when investigating a syntax error problem only.

     The syntax to run with bison traces is as follows :
     - Starting a server manually :
       mysqld --debug="d,parser_debug" ...
     - Running a test :
       mysql-test-run.pl --mysqld="--debug=d,parser_debug" ...

     The result will be in the process stderr (var/log/master.err)
   */

  extern int yydebug;
  yydebug= 1;
}
#endif

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static bool is_native_function(THD *thd, const LEX_STRING *name)
{
  if (find_native_function_builder(thd, *name))
    return true;

  if (is_lex_native_function(name))
    return true;

  return false;
}

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/**
  Helper action for a case statement (entering the CASE).
  This helper is used for both 'simple' and 'searched' cases.
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  This helper, with the other case_stmt_action_..., is executed when
  the following SQL code is parsed:
<pre>
CREATE PROCEDURE proc_19194_simple(i int)
BEGIN
  DECLARE str CHAR(10);

  CASE i
    WHEN 1 THEN SET str="1";
    WHEN 2 THEN SET str="2";
    WHEN 3 THEN SET str="3";
    ELSE SET str="unknown";
  END CASE;

  SELECT str;
END
</pre>
  The actions are used to generate the following code:
<pre>
SHOW PROCEDURE CODE proc_19194_simple;
Pos     Instruction
0       set str@1 NULL
1       set_case_expr (12) 0 i@0
2       jump_if_not 5(12) (case_expr@0 = 1)
3       set str@1 _latin1'1'
4       jump 12
5       jump_if_not 8(12) (case_expr@0 = 2)
6       set str@1 _latin1'2'
7       jump 12
8       jump_if_not 11(12) (case_expr@0 = 3)
9       set str@1 _latin1'3'
10      jump 12
11      set str@1 _latin1'unknown'
12      stmt 0 "SELECT str"
</pre>

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  @param lex the parser lex context
*/

void case_stmt_action_case(LEX *lex)
{
  lex->sphead->new_cont_backpatch(NULL);

  /*
    BACKPATCH: Creating target label for the jump to
    "case_stmt_action_end_case"
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    (Instruction 12 in the example)
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  */

  lex->spcont->push_label((char *)"", lex->sphead->instructions());
}

/**
  Helper action for a case expression statement (the expr in 'CASE expr').
  This helper is used for 'searched' cases only.
  @param lex the parser lex context
  @param expr the parsed expression
  @return 0 on success
*/

int case_stmt_action_expr(LEX *lex, Item* expr)
{
  sp_head *sp= lex->sphead;
  sp_pcontext *parsing_ctx= lex->spcont;
  int case_expr_id= parsing_ctx->register_case_expr();
  sp_instr_set_case_expr *i;

  if (parsing_ctx->push_case_expr_id(case_expr_id))
    return 1;

  i= new sp_instr_set_case_expr(sp->instructions(),
                                parsing_ctx, case_expr_id, expr, lex);

  sp->add_cont_backpatch(i);
  sp->add_instr(i);

  return 0;
}

/**
  Helper action for a case when condition.
  This helper is used for both 'simple' and 'searched' cases.
  @param lex the parser lex context
  @param when the parsed expression for the WHEN clause
  @param simple true for simple cases, false for searched cases
*/

void case_stmt_action_when(LEX *lex, Item *when, bool simple)
{
  sp_head *sp= lex->sphead;
  sp_pcontext *ctx= lex->spcont;
  uint ip= sp->instructions();
  sp_instr_jump_if_not *i;
  Item_case_expr *var;
  Item *expr;

  if (simple)
  {
    var= new Item_case_expr(ctx->get_current_case_expr_id());

#ifndef DBUG_OFF
    if (var)
    {
      var->m_sp= sp;
    }
#endif

    expr= new Item_func_eq(var, when);
    i= new sp_instr_jump_if_not(ip, ctx, expr, lex);
  }
  else
    i= new sp_instr_jump_if_not(ip, ctx, when, lex);

  /*
    BACKPATCH: Registering forward jump from
    "case_stmt_action_when" to "case_stmt_action_then"
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    (jump_if_not from instruction 2 to 5, 5 to 8 ... in the example)
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  */

  sp->push_backpatch(i, ctx->push_label((char *)"", 0));
  sp->add_cont_backpatch(i);
  sp->add_instr(i);
}

/**
  Helper action for a case then statements.
  This helper is used for both 'simple' and 'searched' cases.
  @param lex the parser lex context
*/

void case_stmt_action_then(LEX *lex)
{
  sp_head *sp= lex->sphead;
  sp_pcontext *ctx= lex->spcont;
  uint ip= sp->instructions();
  sp_instr_jump *i = new sp_instr_jump(ip, ctx);
  sp->add_instr(i);

  /*
    BACKPATCH: Resolving forward jump from
    "case_stmt_action_when" to "case_stmt_action_then"
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    (jump_if_not from instruction 2 to 5, 5 to 8 ... in the example)
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  */

  sp->backpatch(ctx->pop_label());

  /*
    BACKPATCH: Registering forward jump from
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    "case_stmt_action_then" to "case_stmt_action_end_case"
    (jump from instruction 4 to 12, 7 to 12 ... in the example)
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  */

  sp->push_backpatch(i, ctx->last_label());
}

/**
  Helper action for an end case.
  This helper is used for both 'simple' and 'searched' cases.
  @param lex the parser lex context
  @param simple true for simple cases, false for searched cases
*/

void case_stmt_action_end_case(LEX *lex, bool simple)
{
  /*
    BACKPATCH: Resolving forward jump from
    "case_stmt_action_then" to "case_stmt_action_end_case"
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    (jump from instruction 4 to 12, 7 to 12 ... in the example)
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  */
  lex->sphead->backpatch(lex->spcont->pop_label());

  if (simple)
    lex->spcont->pop_case_expr_id();

  lex->sphead->do_cont_backpatch();
}

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/**
  Helper to resolve the SQL:2003 Syntax exception 1) in <in predicate>.
  See SQL:2003, Part 2, section 8.4 <in predicate>, Note 184, page 383.
  This function returns the proper item for the SQL expression
  <code>left [NOT] IN ( expr )</code>
  @param thd the current thread
  @param left the in predicand
  @param equal true for IN predicates, false for NOT IN predicates
  @param expr first and only expression of the in value list
  @return an expression representing the IN predicate.
*/
Item* handle_sql2003_note184_exception(THD *thd, Item* left, bool equal,
                                       Item *expr)
{
  /*
    Relevant references for this issue:
    - SQL:2003, Part 2, section 8.4 <in predicate>, page 383,
    - SQL:2003, Part 2, section 7.2 <row value expression>, page 296,
    - SQL:2003, Part 2, section 6.3 <value expression primary>, page 174,
    - SQL:2003, Part 2, section 7.15 <subquery>, page 370,
    - SQL:2003 Feature F561, "Full value expressions".

    The exception in SQL:2003 Note 184 means:
    Item_singlerow_subselect, which corresponds to a <scalar subquery>,
    should be re-interpreted as an Item_in_subselect, which corresponds
    to a <table subquery> when used inside an <in predicate>.

    Our reading of Note 184 is reccursive, so that all:
    - IN (( <subquery> ))
    - IN ((( <subquery> )))
    - IN '('^N <subquery> ')'^N
    - etc
    should be interpreted as a <table subquery>, no matter how deep in the
    expression the <subquery> is.
  */

  Item *result;

  DBUG_ENTER("handle_sql2003_note184_exception");

  if (expr->type() == Item::SUBSELECT_ITEM)
  {
    Item_subselect *expr2 = (Item_subselect*) expr;

    if (expr2->substype() == Item_subselect::SINGLEROW_SUBS)
    {
      Item_singlerow_subselect *expr3 = (Item_singlerow_subselect*) expr2;
      st_select_lex *subselect;

      /*
        Implement the mandated change, by altering the semantic tree:
          left IN Item_singlerow_subselect(subselect)
        is modified to
          left IN (subselect)
        which is represented as
          Item_in_subselect(left, subselect)
      */
      subselect= expr3->invalidate_and_restore_select_lex();
      result= new (thd->mem_root) Item_in_subselect(left, subselect);

      if (! equal)
        result = negate_expression(thd, result);

      DBUG_RETURN(result);
    }
  }

  if (equal)
    result= new (thd->mem_root) Item_func_eq(left, expr);
  else
    result= new (thd->mem_root) Item_func_ne(left, expr);

  DBUG_RETURN(result);
}

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%}
%union {
  int  num;
  ulong ulong_num;
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  ulonglong ulonglong_number;
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  longlong longlong_number;
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  LEX_STRING lex_str;
  LEX_STRING *lex_str_ptr;
  LEX_SYMBOL symbol;
  Table_ident *table;
  char *simple_string;
  Item *item;
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  Item_num *item_num;
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  List<Item> *item_list;
  List<String> *string_list;
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  String *string;
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  Key_part_spec *key_part;
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  TABLE_LIST *table_list;
  udf_func *udf;
  LEX_USER *lex_user;
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  struct sys_var_with_base variable;
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  enum enum_var_type var_type;
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  Key::Keytype key_type;
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  enum ha_key_alg key_alg;
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  handlerton *db_type;
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  enum row_type row_type;
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  enum ha_rkey_function ha_rkey_mode;
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  enum enum_tx_isolation tx_isolation;
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  enum Cast_target cast_type;
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  enum Item_udftype udf_type;
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  CHARSET_INFO *charset;
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  thr_lock_type lock_type;
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  interval_type interval, interval_time_st;
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  timestamp_type date_time_type;
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  st_select_lex *select_lex;
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  chooser_compare_func_creator boolfunc2creator;
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  struct sp_cond_type *spcondtype;
  struct { int vars, conds, hndlrs, curs; } spblock;
  sp_name *spname;
  struct st_lex *lex;
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  sp_head *sphead;
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  struct p_elem_val *p_elem_value;
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  enum index_hint_type index_hint;
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}

%{
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bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
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%}

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%pure_parser                                    /* We have threads */
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/*
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  Currently there are 280 shift/reduce conflicts.
  We should not introduce new conflicts any more.
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*/
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%expect 280
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/*
   Comments for TOKENS.
   For each token, please include in the same line a comment that contains
   the following tags:
   SQL-2003-R : Reserved keyword as per SQL-2003
   SQL-2003-N : Non Reserved keyword as per SQL-2003
   SQL-1999-R : Reserved keyword as per SQL-1999
   SQL-1999-N : Non Reserved keyword as per SQL-1999
   MYSQL      : MySQL extention (unspecified)
   MYSQL-FUNC : MySQL extention, function
   INTERNAL   : Not a real token, lex optimization
   OPERATOR   : SQL operator
   FUTURE-USE : Reserved for futur use

   This makes the code grep-able, and helps maintenance.
*/
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%token  ABORT_SYM                     /* INTERNAL (used in lex) */
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%token  ACCESSIBLE_SYM
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%token  ACTION                        /* SQL-2003-N */
%token  ADD                           /* SQL-2003-R */
%token  ADDDATE_SYM                   /* MYSQL-FUNC */
%token  AFTER_SYM                     /* SQL-2003-N */
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%token  AGAINST
%token  AGGREGATE_SYM
%token  ALGORITHM_SYM
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%token  ALL                           /* SQL-2003-R */
%token  ALTER                         /* SQL-2003-R */
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%token  ANALYZE_SYM
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%token  AND_AND_SYM                   /* OPERATOR */
%token  AND_SYM                       /* SQL-2003-R */
%token  ANY_SYM                       /* SQL-2003-R */
%token  AS                            /* SQL-2003-R */
%token  ASC                           /* SQL-2003-N */
%token  ASCII_SYM                     /* MYSQL-FUNC */
%token  ASENSITIVE_SYM                /* FUTURE-USE */
%token  AT_SYM                        /* SQL-2003-R */
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%token  AUTHORS_SYM
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%token  AUTOEXTEND_SIZE_SYM
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%token  AUTO_INC
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%token  AVG_ROW_LENGTH
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%token  AVG_SYM                       /* SQL-2003-N */
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%token  BACKUP_SYM
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%token  BEFORE_SYM                    /* SQL-2003-N */
%token  BEGIN_SYM                     /* SQL-2003-R */
%token  BETWEEN_SYM                   /* SQL-2003-R */
%token  BIGINT                        /* SQL-2003-R */
%token  BINARY                        /* SQL-2003-R */
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%token  BINLOG_SYM
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%token  BIN_NUM
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%token  BIT_AND                       /* MYSQL-FUNC */
%token  BIT_OR                        /* MYSQL-FUNC */
%token  BIT_SYM                       /* MYSQL-FUNC */
%token  BIT_XOR                       /* MYSQL-FUNC */
%token  BLOB_SYM                      /* SQL-2003-R */
%token  BOOLEAN_SYM                   /* SQL-2003-R */
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%token  BOOL_SYM
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%token  BOTH                          /* SQL-2003-R */
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%token  BTREE_SYM
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%token  BY                            /* SQL-2003-R */
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%token  BYTE_SYM
%token  CACHE_SYM
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%token  CALL_SYM                      /* SQL-2003-R */
%token  CASCADE                       /* SQL-2003-N */
%token  CASCADED                      /* SQL-2003-R */
%token  CASE_SYM                      /* SQL-2003-R */
%token  CAST_SYM                      /* SQL-2003-R */
%token  CHAIN_SYM                     /* SQL-2003-N */
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%token  CHANGE
%token  CHANGED
%token  CHARSET
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%token  CHAR_SYM                      /* SQL-2003-R */
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%token  CHECKSUM_SYM
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%token  CHECK_SYM                     /* SQL-2003-R */
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%token  CIPHER_SYM
%token  CLIENT_SYM
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%token  CLOSE_SYM                     /* SQL-2003-R */
%token  COALESCE                      /* SQL-2003-N */
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%token  CODE_SYM
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%token  COLLATE_SYM                   /* SQL-2003-R */
%token  COLLATION_SYM                 /* SQL-2003-N */
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%token  COLUMNS
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%token  COLUMN_SYM                    /* SQL-2003-R */
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%token  COMMENT_SYM
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%token  COMMITTED_SYM                 /* SQL-2003-N */
%token  COMMIT_SYM                    /* SQL-2003-R */
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%token  COMPACT_SYM
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%token  COMPLETION_SYM
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%token  COMPRESSED_SYM
%token  CONCURRENT
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%token  CONDITION_SYM                 /* SQL-2003-N */
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%token  CONNECTION_SYM
%token  CONSISTENT_SYM
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%token  CONSTRAINT                    /* SQL-2003-R */
%token  CONTAINS_SYM                  /* SQL-2003-N */
%token  CONTINUE_SYM                  /* SQL-2003-R */
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%token  CONTRIBUTORS_SYM
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%token  CONVERT_SYM                   /* SQL-2003-N */
%token  COUNT_SYM                     /* SQL-2003-N */
%token  CREATE                        /* SQL-2003-R */
%token  CROSS                         /* SQL-2003-R */
%token  CUBE_SYM                      /* SQL-2003-R */
%token  CURDATE                       /* MYSQL-FUNC */
%token  CURRENT_USER                  /* SQL-2003-R */
%token  CURSOR_SYM                    /* SQL-2003-R */
%token  CURTIME                       /* MYSQL-FUNC */
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%token  DATABASE
%token  DATABASES
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%token  DATAFILE_SYM
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%token  DATA_SYM                      /* SQL-2003-N */
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%token  DATETIME
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%token  DATE_ADD_INTERVAL             /* MYSQL-FUNC */
%token  DATE_SUB_INTERVAL             /* MYSQL-FUNC */
%token  DATE_SYM                      /* SQL-2003-R */
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%token  DAY_HOUR_SYM
%token  DAY_MICROSECOND_SYM
%token  DAY_MINUTE_SYM
%token  DAY_SECOND_SYM
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%token  DAY_SYM                       /* SQL-2003-R */
%token  DEALLOCATE_SYM                /* SQL-2003-R */
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%token  DECIMAL_NUM
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%token  DECIMAL_SYM                   /* SQL-2003-R */
%token  DECLARE_SYM                   /* SQL-2003-R */
%token  DEFAULT                       /* SQL-2003-R */
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%token  DEFINER_SYM
%token  DELAYED_SYM
%token  DELAY_KEY_WRITE_SYM
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%token  DELETE_SYM                    /* SQL-2003-R */
%token  DESC                          /* SQL-2003-N */
%token  DESCRIBE                      /* SQL-2003-R */
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%token  DES_KEY_FILE
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%token  DETERMINISTIC_SYM             /* SQL-2003-R */
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%token  DIRECTORY_SYM
%token  DISABLE_SYM
%token  DISCARD
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%token  DISK_SYM
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%token  DISTINCT                      /* SQL-2003-R */
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%token  DIV_SYM
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%token  DOUBLE_SYM                    /* SQL-2003-R */
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%token  DO_SYM
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%token  DROP                          /* SQL-2003-R */
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%token  DUAL_SYM
%token  DUMPFILE
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%token  DUPLICATE_SYM
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%token  DYNAMIC_SYM                   /* SQL-2003-R */
%token  EACH_SYM                      /* SQL-2003-R */
%token  ELSE                          /* SQL-2003-R */
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%token  ELSEIF_SYM
%token  ENABLE_SYM
%token  ENCLOSED
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%token  END                           /* SQL-2003-R */
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%token  ENDS_SYM
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%token  END_OF_INPUT                  /* INTERNAL */
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%token  ENGINES_SYM
%token  ENGINE_SYM
%token  ENUM
672 673
%token  EQ                            /* OPERATOR */
%token  EQUAL_SYM                     /* OPERATOR */
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%token  ERRORS
%token  ESCAPED
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%token  ESCAPE_SYM                    /* SQL-2003-R */
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%token  EVENTS_SYM
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%token  EVENT_SYM
%token  EVERY_SYM                     /* SQL-2003-N */
%token  EXECUTE_SYM                   /* SQL-2003-R */
%token  EXISTS                        /* SQL-2003-R */
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%token  EXIT_SYM
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%token  EXPANSION_SYM
%token  EXTENDED_SYM
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%token  EXTENT_SIZE_SYM
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%token  EXTRACT_SYM                   /* SQL-2003-N */
%token  FALSE_SYM                     /* SQL-2003-R */
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%token  FAST_SYM
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%token  FETCH_SYM                     /* SQL-2003-R */
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%token  FILE_SYM
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%token  FIRST_SYM                     /* SQL-2003-N */
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%token  FIXED_SYM
%token  FLOAT_NUM
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%token  FLOAT_SYM                     /* SQL-2003-R */
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%token  FLUSH_SYM
%token  FORCE_SYM
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%token  FOREIGN                       /* SQL-2003-R */
%token  FOR_SYM                       /* SQL-2003-R */
%token  FOUND_SYM                     /* SQL-2003-R */
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%token  FRAC_SECOND_SYM
%token  FROM
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%token  FULL                          /* SQL-2003-R */
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%token  FULLTEXT_SYM
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%token  FUNCTION_SYM                  /* SQL-2003-R */
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%token  GE
%token  GEOMETRYCOLLECTION
%token  GEOMETRY_SYM
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%token  GET_FORMAT                    /* MYSQL-FUNC */
%token  GLOBAL_SYM                    /* SQL-2003-R */
%token  GRANT                         /* SQL-2003-R */
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%token  GRANTS
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%token  GROUP_SYM                     /* SQL-2003-R */
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%token  GROUP_CONCAT_SYM
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%token  GT_SYM                        /* OPERATOR */
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%token  HANDLER_SYM
%token  HASH_SYM
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%token  HAVING                        /* SQL-2003-R */
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%token  HELP_SYM
%token  HEX_NUM
%token  HIGH_PRIORITY
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%token  HOST_SYM
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%token  HOSTS_SYM
%token  HOUR_MICROSECOND_SYM
%token  HOUR_MINUTE_SYM
%token  HOUR_SECOND_SYM
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%token  HOUR_SYM                      /* SQL-2003-R */
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%token  IDENT
%token  IDENTIFIED_SYM
%token  IDENT_QUOTED
%token  IF
%token  IGNORE_SYM
%token  IMPORT
%token  INDEXES
%token  INDEX_SYM
%token  INFILE
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%token  INITIAL_SIZE_SYM
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%token  INNER_SYM                     /* SQL-2003-R */
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%token  INNOBASE_SYM
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%token  INOUT_SYM                     /* SQL-2003-R */
%token  INSENSITIVE_SYM               /* SQL-2003-R */
%token  INSERT                        /* SQL-2003-R */
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%token  INSERT_METHOD
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%token  INSTALL_SYM
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%token  INTERVAL_SYM                  /* SQL-2003-R */
%token  INTO                          /* SQL-2003-R */
%token  INT_SYM                       /* SQL-2003-R */
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%token  INVOKER_SYM
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%token  IN_SYM                        /* SQL-2003-R */
%token  IS                            /* SQL-2003-R */
%token  ISOLATION                     /* SQL-2003-R */
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%token  ISSUER_SYM
%token  ITERATE_SYM
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%token  JOIN_SYM                      /* SQL-2003-R */
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%token  KEYS
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%token  KEY_BLOCK_SIZE
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%token  KEY_SYM                       /* SQL-2003-N */
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%token  KILL_SYM
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%token  LANGUAGE_SYM                  /* SQL-2003-R */
%token  LAST_SYM                      /* SQL-2003-N */
%token  LE                            /* OPERATOR */
%token  LEADING                       /* SQL-2003-R */
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%token  LEAVES
%token  LEAVE_SYM
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%token  LEFT                          /* SQL-2003-R */
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%token  LESS_SYM
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%token  LEVEL_SYM
%token  LEX_HOSTNAME
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%token  LIKE                          /* SQL-2003-R */
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%token  LIMIT
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%token  LINEAR_SYM
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%token  LINES
%token  LINESTRING
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%token  LIST_SYM
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%token  LOAD
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%token  LOCAL_SYM                     /* SQL-2003-R */
%token  LOCATOR_SYM                   /* SQL-2003-N */
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%token  LOCKS_SYM
%token  LOCK_SYM
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%token  LOGFILE_SYM
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%token  LOGS_SYM
%token  LONGBLOB
%token  LONGTEXT
%token  LONG_NUM
%token  LONG_SYM
%token  LOOP_SYM
%token  LOW_PRIORITY
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%token  LT                            /* OPERATOR */
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%token  MASTER_CONNECT_RETRY_SYM
%token  MASTER_HOST_SYM
%token  MASTER_LOG_FILE_SYM
%token  MASTER_LOG_POS_SYM
%token  MASTER_PASSWORD_SYM
%token  MASTER_PORT_SYM
%token  MASTER_SERVER_ID_SYM
%token  MASTER_SSL_CAPATH_SYM
%token  MASTER_SSL_CA_SYM
%token  MASTER_SSL_CERT_SYM
%token  MASTER_SSL_CIPHER_SYM
%token  MASTER_SSL_KEY_SYM
%token  MASTER_SSL_SYM
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%token  MASTER_SSL_VERIFY_SERVER_CERT_SYM
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%token  MASTER_SYM
%token  MASTER_USER_SYM
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%token  MATCH                         /* SQL-2003-R */
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%token  MAX_CONNECTIONS_PER_HOUR
%token  MAX_QUERIES_PER_HOUR
%token  MAX_ROWS
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%token  MAX_SIZE_SYM
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%token  MAX_SYM                       /* SQL-2003-N */
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%token  MAX_UPDATES_PER_HOUR
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%token  MAX_USER_CONNECTIONS_SYM
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%token  MAX_VALUE_SYM                 /* SQL-2003-N */
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%token  MEDIUMBLOB
%token  MEDIUMINT
%token  MEDIUMTEXT
%token  MEDIUM_SYM
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%token  MEMORY_SYM
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%token  MERGE_SYM                     /* SQL-2003-R */
%token  MICROSECOND_SYM               /* MYSQL-FUNC */
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%token  MIGRATE_SYM
%token  MINUTE_MICROSECOND_SYM
%token  MINUTE_SECOND_SYM
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%token  MINUTE_SYM                    /* SQL-2003-R */
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%token  MIN_ROWS
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%token  MIN_SYM                       /* SQL-2003-N */
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%token  MODE_SYM
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%token  MODIFIES_SYM                  /* SQL-2003-R */
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%token  MODIFY_SYM
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%token  MOD_SYM                       /* SQL-2003-N */
%token  MONTH_SYM                     /* SQL-2003-R */
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%token  MULTILINESTRING
%token  MULTIPOINT
%token  MULTIPOLYGON
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%token  MUTEX_SYM
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%token  NAMES_SYM                     /* SQL-2003-N */
%token  NAME_SYM                      /* SQL-2003-N */
%token  NATIONAL_SYM                  /* SQL-2003-R */
%token  NATURAL                       /* SQL-2003-R */
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%token  NCHAR_STRING
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%token  NCHAR_SYM                     /* SQL-2003-R */
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%token  NDBCLUSTER_SYM
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%token  NE                            /* OPERATOR */
%token  NEG
%token  NEW_SYM                       /* SQL-2003-R */
%token  NEXT_SYM                      /* SQL-2003-N */
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%token  NODEGROUP_SYM
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%token  NONE_SYM                      /* SQL-2003-R */
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%token  NOT2_SYM
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%token  NOT_SYM                       /* SQL-2003-R */
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%token  NOW_SYM
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%token  NO_SYM                        /* SQL-2003-R */
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%token  NO_WAIT_SYM
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%token  NO_WRITE_TO_BINLOG
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%token  NULL_SYM                      /* SQL-2003-R */
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%token  NUM
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%token  NUMERIC_SYM                   /* SQL-2003-R */
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%token  NVARCHAR_SYM
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%token  OFFSET_SYM
%token  OLD_PASSWORD
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%token  ON                            /* SQL-2003-R */
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%token  ONE_SHOT_SYM
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%token  ONE_SYM
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%token  OPEN_SYM                      /* SQL-2003-R */
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%token  OPTIMIZE
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%token  OPTIONS_SYM
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%token  OPTION                        /* SQL-2003-N */
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%token  OPTIONALLY
%token  OR2_SYM
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%token  ORDER_SYM                     /* SQL-2003-R */
%token  OR_OR_SYM                     /* OPERATOR */
%token  OR_SYM                        /* SQL-2003-R */
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%token  OUTER
%token  OUTFILE
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%token  OUT_SYM                       /* SQL-2003-R */
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%token  OWNER_SYM
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%token  PACK_KEYS_SYM
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%token  PARAM_MARKER
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%token  PARSER_SYM
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%token  PARTIAL                       /* SQL-2003-N */
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%token  PARTITIONING_SYM
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%token  PARTITIONS_SYM
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%token  PARTITION_SYM                 /* SQL-2003-R */
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%token  PASSWORD
%token  PHASE_SYM
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%token  PLUGINS_SYM
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%token  PLUGIN_SYM
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%token  POINT_SYM
%token  POLYGON
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%token  PORT_SYM
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%token  POSITION_SYM                  /* SQL-2003-N */
%token  PRECISION                     /* SQL-2003-R */
%token  PREPARE_SYM                   /* SQL-2003-R */
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%token  PRESERVE_SYM
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%token  PREV_SYM
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%token  PRIMARY_SYM                   /* SQL-2003-R */
%token  PRIVILEGES                    /* SQL-2003-N */
%token  PROCEDURE                     /* SQL-2003-R */
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%token  PROCESS
%token  PROCESSLIST_SYM
%token  PURGE
%token  QUARTER_SYM
%token  QUERY_SYM
%token  QUICK
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%token  RANGE_SYM                     /* SQL-2003-R */
%token  READS_SYM                     /* SQL-2003-R */
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%token  READ_ONLY_SYM
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%token  READ_SYM                      /* SQL-2003-N */
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%token  READ_WRITE_SYM
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%token  REAL                          /* SQL-2003-R */
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%token  REBUILD_SYM
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%token  RECOVER_SYM
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%token  REDOFILE_SYM
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%token  REDO_BUFFER_SIZE_SYM
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%token  REDUNDANT_SYM
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%token  REFERENCES                    /* SQL-2003-R */
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%token  REGEXP
%token  RELAY_LOG_FILE_SYM
%token  RELAY_LOG_POS_SYM
%token  RELAY_THREAD
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%token  RELEASE_SYM                   /* SQL-2003-R */
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%token  RELOAD
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%token  REMOVE_SYM
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%token  RENAME
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%token  REORGANIZE_SYM
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%token  REPAIR
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%token  REPEATABLE_SYM                /* SQL-2003-N */
%token  REPEAT_SYM                    /* MYSQL-FUNC */
%token  REPLACE                       /* MYSQL-FUNC */
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%token  REPLICATION
%token  REQUIRE_SYM
%token  RESET_SYM
%token  RESOURCES
%token  RESTORE_SYM
%token  RESTRICT
%token  RESUME_SYM
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%token  RETURNS_SYM                   /* SQL-2003-R */
%token  RETURN_SYM                    /* SQL-2003-R */
%token  REVOKE                        /* SQL-2003-R */
%token  RIGHT                         /* SQL-2003-R */
%token  ROLLBACK_SYM                  /* SQL-2003-R */
%token  ROLLUP_SYM                    /* SQL-2003-R */
%token  ROUTINE_SYM                   /* SQL-2003-N */
%token  ROWS_SYM                      /* SQL-2003-R */
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%token  ROW_FORMAT_SYM
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%token  ROW_SYM                       /* SQL-2003-R */
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%token  RTREE_SYM
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%token  SAVEPOINT_SYM                 /* SQL-2003-R */
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%token  SCHEDULE_SYM
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%token  SECOND_MICROSECOND_SYM
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%token  SECOND_SYM                    /* SQL-2003-R */
%token  SECURITY_SYM                  /* SQL-2003-N */
%token  SELECT_SYM                    /* SQL-2003-R */
%token  SENSITIVE_SYM                 /* FUTURE-USE */
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%token  SEPARATOR_SYM
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%token  SERIALIZABLE_SYM              /* SQL-2003-N */
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%token  SERIAL_SYM
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%token  SESSION_SYM                   /* SQL-2003-N */
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%token  SERVER_SYM
%token  SERVER_OPTIONS
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%token  SET                           /* SQL-2003-R */
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%token  SET_VAR
%token  SHARE_SYM
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%token  SHIFT_LEFT                    /* OPERATOR */
%token  SHIFT_RIGHT                   /* OPERATOR */
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%token  SHOW
%token  SHUTDOWN
%token  SIGNED_SYM
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%token  SIMPLE_SYM                    /* SQL-2003-N */
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%token  SLAVE
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%token  SMALLINT                      /* SQL-2003-R */
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%token  SNAPSHOT_SYM
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%token  SOCKET_SYM
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%token  SONAME_SYM
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%token  SOUNDS_SYM
%token  SPATIAL_SYM
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%token  SPECIFIC_SYM                  /* SQL-2003-R */
%token  SQLEXCEPTION_SYM              /* SQL-2003-R */
%token  SQLSTATE_SYM                  /* SQL-2003-R */
%token  SQLWARNING_SYM                /* SQL-2003-R */
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%token  SQL_BIG_RESULT
%token  SQL_BUFFER_RESULT
%token  SQL_CACHE_SYM
%token  SQL_CALC_FOUND_ROWS
%token  SQL_NO_CACHE_SYM
%token  SQL_SMALL_RESULT
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%token  SQL_SYM                       /* SQL-2003-R */
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%token  SQL_THREAD
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%token  SSL_SYM
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%token  STARTING
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%token  STARTS_SYM
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%token  START_SYM                     /* SQL-2003-R */
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%token  STATUS_SYM
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%token  STDDEV_SAMP_SYM               /* SQL-2003-N */
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%token  STD_SYM
%token  STOP_SYM
%token  STORAGE_SYM
%token  STRAIGHT_JOIN
%token  STRING_SYM
%token  SUBDATE_SYM
%token  SUBJECT_SYM
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%token  SUBPARTITIONS_SYM
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%token  SUBPARTITION_SYM
%token  SUBSTRING                     /* SQL-2003-N */
%token  SUM_SYM                       /* SQL-2003-N */
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%token  SUPER_SYM
%token  SUSPEND_SYM
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%token  SYSDATE
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%token  TABLES
%token  TABLESPACE
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%token  TABLE_REF_PRIORITY
%token  TABLE_SYM                     /* SQL-2003-R */
%token  TEMPORARY                     /* SQL-2003-N */
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%token  TEMPTABLE_SYM
%token  TERMINATED
%token  TEXT_STRING
%token  TEXT_SYM
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%token  THAN_SYM
%token  THEN_SYM                      /* SQL-2003-R */
%token  TIMESTAMP                     /* SQL-2003-R */
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%token  TIMESTAMP_ADD
%token  TIMESTAMP_DIFF
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%token  TIME_SYM                      /* SQL-2003-R */
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%token  TINYBLOB
%token  TINYINT
%token  TINYTEXT
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%token  TO_SYM                        /* SQL-2003-R */
%token  TRAILING                      /* SQL-2003-R */
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%token  TRANSACTION_SYM
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%token  TRIGGERS_SYM
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%token  TRIGGER_SYM                   /* SQL-2003-R */
%token  TRIM                          /* SQL-2003-N */
%token  TRUE_SYM                      /* SQL-2003-R */
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%token  TRUNCATE_SYM
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%token  TYPES_SYM
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%token  TYPE_SYM                      /* SQL-2003-N */
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%token  UDF_RETURNS_SYM
%token  ULONGLONG_NUM
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%token  UNCOMMITTED_SYM               /* SQL-2003-N */
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%token  UNDEFINED_SYM
%token  UNDERSCORE_CHARSET
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%token  UNDOFILE_SYM
%token  UNDO_BUFFER_SIZE_SYM
%token  UNDO_SYM                      /* FUTURE-USE */
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%token  UNICODE_SYM
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%token  UNINSTALL_SYM
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%token  UNION_SYM                     /* SQL-2003-R */
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%token  UNIQUE_SYM
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%token  UNKNOWN_SYM                   /* SQL-2003-R */
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%token  UNLOCK_SYM
%token  UNSIGNED
%token  UNTIL_SYM
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%token  UPDATE_SYM                    /* SQL-2003-R */
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%token  UPGRADE_SYM
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%token  USAGE                         /* SQL-2003-N */
%token  USER                          /* SQL-2003-R */
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%token  USE_FRM
%token  USE_SYM
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%token  USING                         /* SQL-2003-R */
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%token  UTC_DATE_SYM
%token  UTC_TIMESTAMP_SYM
%token  UTC_TIME_SYM
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%token  VALUES                        /* SQL-2003-R */
%token  VALUE_SYM                     /* SQL-2003-R */
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%token  VARBINARY
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%token  VARCHAR                       /* SQL-2003-R */
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%token  VARIABLES
%token  VARIANCE_SYM
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%token  VARYING                       /* SQL-2003-R */
%token  VAR_SAMP_SYM
%token  VIEW_SYM                      /* SQL-2003-N */
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%token  WAIT_SYM
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%token  WARNINGS
%token  WEEK_SYM
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%token  WHEN_SYM                      /* SQL-2003-R */
%token  WHERE                         /* SQL-2003-R */
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%token  WHILE_SYM
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%token  WITH                          /* SQL-2003-R */
%token  WORK_SYM                      /* SQL-2003-N */
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%token  WRAPPER_SYM
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%token  WRITE_SYM                     /* SQL-2003-N */
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%token  X509_SYM
%token  XA_SYM
%token  XOR
%token  YEAR_MONTH_SYM
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%token  YEAR_SYM                      /* SQL-2003-R */
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%token  ZEROFILL
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%left   JOIN_SYM INNER_SYM STRAIGHT_JOIN CROSS LEFT RIGHT
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/* A dummy token to force the priority of table_ref production in a join. */
%left   TABLE_REF_PRIORITY
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%left   SET_VAR
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%left   OR_OR_SYM OR_SYM OR2_SYM
%left   XOR
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%left   AND_SYM AND_AND_SYM
%left   BETWEEN_SYM CASE_SYM WHEN_SYM THEN_SYM ELSE
%left   EQ EQUAL_SYM GE GT_SYM LE LT NE IS LIKE REGEXP IN_SYM
%left   '|'
%left   '&'
%left   SHIFT_LEFT SHIFT_RIGHT
%left   '-' '+'
%left   '*' '/' '%' DIV_SYM MOD_SYM
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%left   '^'
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%left   NEG '~'
%right  NOT_SYM NOT2_SYM
%right  BINARY COLLATE_SYM
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%left  INTERVAL_SYM
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%type <lex_str>
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        IDENT IDENT_QUOTED TEXT_STRING DECIMAL_NUM FLOAT_NUM NUM LONG_NUM HEX_NUM
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        LEX_HOSTNAME ULONGLONG_NUM field_ident select_alias ident ident_or_text
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        IDENT_sys TEXT_STRING_sys TEXT_STRING_literal
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        NCHAR_STRING opt_component key_cache_name
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        sp_opt_label BIN_NUM label_ident TEXT_STRING_filesystem ident_or_empty
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%type <lex_str_ptr>
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        opt_table_alias
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%type <table>
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        table_ident table_ident_nodb references xid
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%type <simple_string>
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        remember_name remember_end opt_ident opt_db text_or_password
        opt_constraint constraint
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%type <string>
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        text_string opt_gconcat_separator
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%type <num>
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        type int_type real_type order_dir lock_option
        udf_type if_exists opt_local opt_table_options table_options
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        table_option opt_if_not_exists opt_no_write_to_binlog
        delete_option opt_temporary all_or_any opt_distinct
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        opt_ignore_leaves fulltext_options spatial_type union_option
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        start_transaction_opts opt_chain opt_release
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        union_opt select_derived_init option_type2
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        opt_natural_language_mode opt_query_expansion
        opt_ev_status opt_ev_on_completion ev_on_completion opt_ev_comment
        ev_alter_on_schedule_completion opt_ev_rename_to opt_ev_sql_stmt
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%type <ulong_num>
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        ulong_num real_ulong_num merge_insert_types
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%type <ulonglong_number>
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        ulonglong_num real_ulonglong_num size_number
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%type <p_elem_value>
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        part_bit_expr

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%type <lock_type>
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        replace_lock_option opt_low_priority insert_lock_option load_data_lock
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%type <item>
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        literal text_literal insert_ident order_ident
        simple_ident select_item2 expr opt_expr opt_else sum_expr in_sum_expr
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        variable variable_aux bool_factor bool_test bool_pri
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        predicate bit_expr bit_term bit_factor value_expr term factor
        table_wild simple_expr udf_expr
        expr_or_default set_expr_or_default interval_expr
        param_marker geometry_function
        signed_literal now_or_signed_literal opt_escape
        sp_opt_default
        simple_ident_nospvar simple_ident_q
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        field_or_var limit_option
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        part_func_expr
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        function_call_keyword
        function_call_nonkeyword
        function_call_generic
        function_call_conflict
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%type <item_num>
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        NUM_literal
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%type <item_list>
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        expr_list opt_udf_expr_list udf_expr_list when_list
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        ident_list ident_list_arg opt_expr_list
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%type <var_type>
        option_type opt_var_type opt_var_ident_type

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%type <key_type>
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        key_type opt_unique_or_fulltext constraint_key_type
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%type <key_alg>
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        btree_or_rtree
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%type <string_list>
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        using_list
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%type <key_part>
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        key_part
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%type <table_list>
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        join_table_list  join_table
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        table_factor table_ref
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        select_derived derived_table_list
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%type <date_time_type> date_time_type;
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%type <interval> interval

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%type <interval_time_st> interval_time_st

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%type <db_type> storage_engines known_storage_engines
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%type <row_type> row_types

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%type <tx_isolation> isolation_types
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%type <ha_rkey_mode> handler_rkey_mode

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%type <cast_type> cast_type
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%type <udf_type> udf_func_type

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%type <symbol> keyword keyword_sp
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%type <lex_user> user grant_user
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%type <charset>
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        opt_collate
        charset_name
        charset_name_or_default
        old_or_new_charset_name
        old_or_new_charset_name_or_default
        collation_name
        collation_name_or_default
        opt_load_data_charset
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        UNDERSCORE_CHARSET
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%type <variable> internal_variable_name

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%type <select_lex> subselect subselect_init
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        get_select_lex
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%type <boolfunc2creator> comp_op

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%type <NONE>
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        query verb_clause create change select do drop insert replace insert2
        insert_values update delete truncate rename
        show describe load alter optimize keycache preload flush
        reset purge begin commit rollback savepoint release
        slave master_def master_defs master_file_def slave_until_opts
        repair restore backup analyze check start checksum
        field_list field_list_item field_spec kill column_def key_def
        keycache_list assign_to_keycache preload_list preload_keys
        select_item_list select_item values_list no_braces
        opt_limit_clause delete_limit_clause fields opt_values values
        procedure_list procedure_list2 procedure_item
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        handler
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        opt_precision opt_ignore opt_column opt_restrict
        grant revoke set lock unlock string_list field_options field_option
        field_opt_list opt_binary table_lock_list table_lock
        ref_list opt_on_delete opt_on_delete_list opt_on_delete_item use
        opt_delete_options opt_delete_option varchar nchar nvarchar
        opt_outer table_list table_name opt_option opt_place
        opt_attribute opt_attribute_list attribute column_list column_list_id
        opt_column_list grant_privileges grant_ident grant_list grant_option
        object_privilege object_privilege_list user_list rename_list
        clear_privileges flush_options flush_option
        equal optional_braces
        opt_mi_check_type opt_to mi_check_types normal_join
        db_to_db table_to_table_list table_to_table opt_table_list opt_as
        handler_rkey_function handler_read_or_scan
        single_multi table_wild_list table_wild_one opt_wild
        union_clause union_list
        precision subselect_start opt_and charset
        subselect_end select_var_list select_var_list_init help opt_len
        opt_extended_describe
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        prepare prepare_src execute deallocate
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        statement sp_suid
        sp_c_chistics sp_a_chistics sp_chistic sp_c_chistic xa
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        load_data opt_field_or_var_spec fields_or_vars opt_load_data_set_spec
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        definer view_replace_or_algorithm view_replace
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        view_algorithm view_or_trigger_or_sp_or_event
        view_or_trigger_or_sp_or_event_tail
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        view_suid view_tail view_list_opt view_list view_select
        view_check_option trigger_tail sp_tail
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        install uninstall partition_entry binlog_base64_event
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        init_key_options key_options key_opts key_opt key_using_alg
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        server_def server_options_list server_option
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END_OF_INPUT
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%type <NONE> call sp_proc_stmts sp_proc_stmts1 sp_proc_stmt
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%type <NONE> sp_proc_stmt_statement sp_proc_stmt_return
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%type <NONE> sp_proc_stmt_if
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%type <NONE> sp_labeled_control sp_proc_stmt_unlabeled sp_proc_stmt_leave
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%type <NONE> sp_proc_stmt_iterate
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%type <NONE> sp_proc_stmt_open sp_proc_stmt_fetch sp_proc_stmt_close
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%type <NONE> case_stmt_specification simple_case_stmt searched_case_stmt
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%type <num>  sp_decl_idents sp_opt_inout sp_handler_type sp_hcond_list
%type <spcondtype> sp_cond sp_hcond
%type <spblock> sp_decls sp_decl
%type <lex> sp_cursor_stmt
%type <spname> sp_name
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%type <index_hint> index_hint_type
%type <num> index_hint_clause
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%type <NONE>
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        '-' '+' '*' '/' '%' '(' ')'
        ',' '!' '{' '}' '&' '|' AND_SYM OR_SYM OR_OR_SYM BETWEEN_SYM CASE_SYM
        THEN_SYM WHEN_SYM DIV_SYM MOD_SYM OR2_SYM AND_AND_SYM
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%%

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/*
  Indentation of grammar rules:

rule: <-- starts at col 1
          rule1a rule1b rule1c <-- starts at col 11
          { <-- starts at col 11
            code <-- starts at col 13, indentation is 2 spaces
          }
        | rule2a rule2b
          {
            code
          }
        ; <-- on a line by itself, starts at col 9

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  Also, please do not use any <TAB>, but spaces.
  Having a uniform indentation in this file helps
  code reviews, patches, merges, and make maintenance easier.
  Tip: grep [[:cntrl:]] sql_yacc.yy
  Thanks.
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*/
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query:
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          END_OF_INPUT
          {
            THD *thd= YYTHD;
            if (!thd->bootstrap &&
              (!(thd->lex->select_lex.options & OPTION_FOUND_COMMENT)))
            {
              my_message(ER_EMPTY_QUERY, ER(ER_EMPTY_QUERY), MYF(0));
              MYSQL_YYABORT;
            }
            else
            {
              thd->lex->sql_command= SQLCOM_EMPTY_QUERY;
            }
          }
        | verb_clause END_OF_INPUT {}
        ;
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verb_clause:
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          statement
        | begin
        ;
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/* Verb clauses, except begin */
statement:
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          alter
        | analyze
        | backup
        | binlog_base64_event
        | call
        | change
        | check
        | checksum
        | commit
        | create
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        | deallocate
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        | delete
        | describe
        | do
        | drop
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        | execute
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        | flush
        | grant
        | handler
        | help
        | insert
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        | install
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        | kill
        | load
        | lock
        | optimize
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        | keycache
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        | partition_entry
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        | preload
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        | prepare
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        | purge
        | release
        | rename
        | repair
        | replace
        | reset
        | restore
        | revoke
        | rollback
        | savepoint
        | select
        | set
        | show
        | slave
        | start
        | truncate
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        | uninstall
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        | unlock
        | update
        | use
        | xa
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        ;
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deallocate:
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          deallocate_or_drop PREPARE_SYM ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->sql_command= SQLCOM_DEALLOCATE_PREPARE;
            lex->prepared_stmt_name= $3;
          }
        ;
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deallocate_or_drop:
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          DEALLOCATE_SYM
        | DROP
        ;
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prepare:
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          PREPARE_SYM ident FROM prepare_src
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->sql_command= SQLCOM_PREPARE;
            lex->prepared_stmt_name= $2;
          }
        ;
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prepare_src:
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          TEXT_STRING_sys
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->prepared_stmt_code= $1;
            lex->prepared_stmt_code_is_varref= FALSE;
          }
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        | '@' ident_or_text
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          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->prepared_stmt_code= $2;
            lex->prepared_stmt_code_is_varref= TRUE;
          }
        ;
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execute:
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          EXECUTE_SYM ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->sql_command= SQLCOM_EXECUTE;
            lex->prepared_stmt_name= $2;
          }
          execute_using
          {}
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        ;

execute_using:
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          /* nothing */
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        | USING execute_var_list
        ;

execute_var_list:
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          execute_var_list ',' execute_var_ident
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        | execute_var_ident
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        ;

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execute_var_ident:
          '@' ident_or_text
          {
            LEX *lex=Lex;
            LEX_STRING *lexstr= (LEX_STRING*)sql_memdup(&$2, sizeof(LEX_STRING));
            if (!lexstr || lex->prepared_stmt_params.push_back(lexstr))
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              MYSQL_YYABORT;
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          }
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        ;

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/* help */

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help:
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          HELP_SYM
          {
            if (Lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "HELP");
              MYSQL_YYABORT;
            }
          }
          ident_or_text
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_HELP;
            lex->help_arg= $3.str;
          }
        ;
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/* change master */

change:
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          CHANGE MASTER_SYM TO_SYM
          {
            LEX *lex = Lex;
            lex->sql_command = SQLCOM_CHANGE_MASTER;
            bzero((char*) &lex->mi, sizeof(lex->mi));
          }
          master_defs
          {}
        ;
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master_defs:
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          master_def
        | master_defs ',' master_def
        ;
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master_def:
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          MASTER_HOST_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.host = $3.str;
          }
        | MASTER_USER_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.user = $3.str;
          }
        | MASTER_PASSWORD_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.password = $3.str;
          }
        | MASTER_PORT_SYM EQ ulong_num
          {
            Lex->mi.port = $3;
          }
        | MASTER_CONNECT_RETRY_SYM EQ ulong_num
          {
            Lex->mi.connect_retry = $3;
          }
        | MASTER_SSL_SYM EQ ulong_num
          {
            Lex->mi.ssl= $3 ? 
              LEX_MASTER_INFO::SSL_ENABLE : LEX_MASTER_INFO::SSL_DISABLE;
          }
        | MASTER_SSL_CA_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.ssl_ca= $3.str;
          }
        | MASTER_SSL_CAPATH_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.ssl_capath= $3.str;
          }
        | MASTER_SSL_CERT_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.ssl_cert= $3.str;
          }
        | MASTER_SSL_CIPHER_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.ssl_cipher= $3.str;
          }
        | MASTER_SSL_KEY_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.ssl_key= $3.str;
          }
        | MASTER_SSL_VERIFY_SERVER_CERT_SYM EQ ulong_num
          {
            Lex->mi.ssl_verify_server_cert= $3 ?
              LEX_MASTER_INFO::SSL_ENABLE : LEX_MASTER_INFO::SSL_DISABLE;
          }
        | master_file_def
        ;
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master_file_def:
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          MASTER_LOG_FILE_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.log_file_name = $3.str;
          }
        | MASTER_LOG_POS_SYM EQ ulonglong_num
          {
            Lex->mi.pos = $3;
            /* 
               If the user specified a value < BIN_LOG_HEADER_SIZE, adjust it
               instead of causing subsequent errors. 
               We need to do it in this file, because only there we know that 
               MASTER_LOG_POS has been explicitely specified. On the contrary
               in change_master() (sql_repl.cc) we cannot distinguish between 0
               (MASTER_LOG_POS explicitely specified as 0) and 0 (unspecified),
               whereas we want to distinguish (specified 0 means "read the binlog
               from 0" (4 in fact), unspecified means "don't change the position
               (keep the preceding value)").
            */
            Lex->mi.pos = max(BIN_LOG_HEADER_SIZE, Lex->mi.pos);
          }
        | RELAY_LOG_FILE_SYM EQ TEXT_STRING_sys
          {
            Lex->mi.relay_log_name = $3.str;
          }
        | RELAY_LOG_POS_SYM EQ ulong_num
          {
            Lex->mi.relay_log_pos = $3;
            /* Adjust if < BIN_LOG_HEADER_SIZE (same comment as Lex->mi.pos) */
            Lex->mi.relay_log_pos = max(BIN_LOG_HEADER_SIZE, Lex->mi.relay_log_pos);
          }
        ;
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/* create a table */

create:
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          CREATE opt_table_options TABLE_SYM opt_if_not_exists table_ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->sql_command= SQLCOM_CREATE_TABLE;
            if (!lex->select_lex.add_table_to_list(thd, $5, NULL,
                                                   TL_OPTION_UPDATING,
                                                   TL_WRITE))
              MYSQL_YYABORT;
            lex->alter_info.reset();
            lex->col_list.empty();
            lex->change=NullS;
            bzero((char*) &lex->create_info,sizeof(lex->create_info));
            lex->create_info.options=$2 | $4;
            lex->create_info.db_type= ha_default_handlerton(thd);
            lex->create_info.default_table_charset= NULL;
            lex->name.str= 0;
            lex->name.length= 0;
          }
          create2
          {
            LEX *lex= YYTHD->lex;
            lex->current_select= &lex->select_lex; 
            if (!lex->create_info.db_type)
            {
              lex->create_info.db_type= ha_default_handlerton(YYTHD);
              push_warning_printf(YYTHD, MYSQL_ERROR::WARN_LEVEL_WARN,
                                  ER_WARN_USING_OTHER_HANDLER,
                                  ER(ER_WARN_USING_OTHER_HANDLER),
                                  ha_resolve_storage_engine_name(lex->create_info.db_type),
                                  $5->table.str);
            }
          }
        | CREATE opt_unique_or_fulltext INDEX_SYM ident key_alg ON
          table_ident
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_CREATE_INDEX;
            if (!lex->current_select->add_table_to_list(lex->thd, $7,
                                                        NULL,
                                                        TL_OPTION_UPDATING))
              MYSQL_YYABORT;
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            lex->alter_info.reset();
            lex->alter_info.flags= ALTER_ADD_INDEX;
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            lex->col_list.empty();
            lex->change=NullS;
          }
          '(' key_list ')' key_options
          {
            LEX *lex=Lex;
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            Key *key;
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            if ($2 != Key::FULLTEXT && lex->key_create_info.parser_name.str)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
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            key= new Key($2, $4.str, &lex->key_create_info, 0,
                         lex->col_list);
            lex->alter_info.key_list.push_back(key);
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            lex->col_list.empty();
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          }
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        | CREATE DATABASE opt_if_not_exists ident
          {
            Lex->create_info.default_table_charset= NULL;
            Lex->create_info.used_fields= 0;
          }
          opt_create_database_options
          {
            LEX *lex=Lex;
            lex->sql_command=SQLCOM_CREATE_DB;
            lex->name= $4;
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            lex->create_info.options=$3;
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          }
        | CREATE
          {
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            Lex->create_view_mode= VIEW_CREATE_NEW;
            Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED;
            Lex->create_view_suid= TRUE;
          }
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          view_or_trigger_or_sp_or_event
          {}
        | CREATE USER clear_privileges grant_list
          {
            Lex->sql_command = SQLCOM_CREATE_USER;
          }
        | CREATE LOGFILE_SYM GROUP_SYM logfile_group_info 
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          {
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            Lex->alter_tablespace_info->ts_cmd_type= CREATE_LOGFILE_GROUP;
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          }
        | CREATE TABLESPACE tablespace_info
          {
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            Lex->alter_tablespace_info->ts_cmd_type= CREATE_TABLESPACE;
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          }
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        | CREATE server_def
          {
            Lex->sql_command= SQLCOM_CREATE_SERVER;
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          }
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        ;

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server_def:
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          SERVER_SYM
          ident_or_text
          FOREIGN DATA_SYM WRAPPER_SYM
          ident_or_text
          OPTIONS_SYM '(' server_options_list ')'
          {
            Lex->server_options.server_name= $2.str;
            Lex->server_options.server_name_length= $2.length;
            Lex->server_options.scheme= $6.str;
          }
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        ;
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server_options_list:
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          server_option
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        | server_options_list ',' server_option
        ;

server_option:
1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749
          USER TEXT_STRING_sys
          {
            Lex->server_options.username= $2.str;
          }
        | HOST_SYM TEXT_STRING_sys
          {
            Lex->server_options.host= $2.str;
          }
        | DATABASE TEXT_STRING_sys
          {
            Lex->server_options.db= $2.str;
          }
        | OWNER_SYM TEXT_STRING_sys
          {
            Lex->server_options.owner= $2.str;
          }
        | PASSWORD TEXT_STRING_sys
          {
            Lex->server_options.password= $2.str;
          }
        | SOCKET_SYM TEXT_STRING_sys
          {
            Lex->server_options.socket= $2.str;
          }
        | PORT_SYM ulong_num
          {
            Lex->server_options.port= $2;
          }
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        ;
1751 1752 1753

event_tail:
          EVENT_SYM opt_if_not_exists sp_name
1754
          /*
1755 1756
            BE CAREFUL when you add a new rule to update the block where
            YYTHD->client_capabilities is set back to original value
1757
          */
1758
          {
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            THD *thd= YYTHD;
            LEX *lex=Lex;
1761

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            lex->create_info.options= $2;

            if (!(lex->event_parse_data= Event_parse_data::new_instance(thd)))
1765
              MYSQL_YYABORT;
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            lex->event_parse_data->identifier= $3;
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            /*
              We have to turn of CLIENT_MULTI_QUERIES while parsing a
              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
            */
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1773 1774
            $<ulong_num>$= thd->client_capabilities & CLIENT_MULTI_QUERIES;
            thd->client_capabilities &= (~CLIENT_MULTI_QUERIES);
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            lex->sql_command= SQLCOM_CREATE_EVENT;
1777
            /* We need that for disallowing subqueries */
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          }
          ON SCHEDULE_SYM ev_schedule_time
1780 1781 1782
          opt_ev_on_completion
          opt_ev_status
          opt_ev_comment
1783 1784
          DO_SYM ev_sql_stmt
          {
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            /*
1786
              Restore flag if it was cleared above
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              $1 - EVENT_SYM
              $2 - opt_if_not_exists
              $3 - sp_name
              $4 - the block above
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            */
1792
            YYTHD->client_capabilities |= $<ulong_num>4;
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            /*
              sql_command is set here because some rules in ev_sql_stmt
              can overwrite it
            */
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            Lex->sql_command= SQLCOM_CREATE_EVENT;
1799
          }
1800
        ;
1801

1802 1803 1804
ev_schedule_time:
          EVERY_SYM expr interval
          {
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            Lex->event_parse_data->item_expression= $2;
            Lex->event_parse_data->interval= $3;
1807 1808 1809 1810 1811
          }
          ev_starts
          ev_ends
        | AT_SYM expr
          {
1812
            Lex->event_parse_data->item_execute_at= $2;
1813
          }
1814
        ;
1815

1816 1817
opt_ev_status:
          /* empty */ { $$= 0; }
1818
        | ENABLE_SYM
1819
          {
1820 1821 1822
            Lex->event_parse_data->status= Event_basic::ENABLED;
            $$= 1;
          }
1823
        | DISABLE_SYM ON SLAVE
1824 1825
          {
            Lex->event_parse_data->status= Event_basic::SLAVESIDE_DISABLED;
1826
            $$= 1;
1827
          }
1828
        | DISABLE_SYM
1829
          {
1830
            Lex->event_parse_data->status= Event_basic::DISABLED;
1831
            $$= 1;
1832
          }
1833
        ;
1834

1835 1836
ev_starts:
          /* empty */
1837
          {
1838
            Lex->event_parse_data->item_starts= new Item_func_now_local();
1839
          }
1840 1841
        | STARTS_SYM expr
          {
1842
            Lex->event_parse_data->item_starts= $2;
1843
          }
1844
        ;
1845

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ev_ends:
          /* empty */
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        | ENDS_SYM expr
          {
1850
            Lex->event_parse_data->item_ends= $2;
1851
          }
1852
        ;
1853

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opt_ev_on_completion:
          /* empty */ { $$= 0; }
1856
        | ev_on_completion
1857
        ;
1858

1859
ev_on_completion:
1860
          ON COMPLETION_SYM PRESERVE_SYM
1861
          {
1862
            Lex->event_parse_data->on_completion=
1863
                                  Event_basic::ON_COMPLETION_PRESERVE;
1864
            $$= 1;
1865 1866 1867
          }
        | ON COMPLETION_SYM NOT_SYM PRESERVE_SYM
          {
1868
            Lex->event_parse_data->on_completion=
1869
                                  Event_basic::ON_COMPLETION_DROP;
1870
            $$= 1;
1871
          }
1872
        ;
1873

1874 1875
opt_ev_comment:
          /* empty */ { $$= 0; }
1876 1877
        | COMMENT_SYM TEXT_STRING_sys
          {
1878
            Lex->comment= Lex->event_parse_data->comment= $2;
1879
            $$= 1;
1880
          }
1881
        ;
1882 1883 1884

ev_sql_stmt:
          {
1885 1886 1887
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
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1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906
            /*
              This stops the following :
              - CREATE EVENT ... DO CREATE EVENT ...;
              - ALTER  EVENT ... DO CREATE EVENT ...;
              - CREATE EVENT ... DO ALTER EVENT DO ....;
              - CREATE PROCEDURE ... BEGIN CREATE EVENT ... END|
              This allows:
              - CREATE EVENT ... DO DROP EVENT yyy;
              - CREATE EVENT ... DO ALTER EVENT yyy;
                (the nested ALTER EVENT can have anything but DO clause)
              - ALTER  EVENT ... DO ALTER EVENT yyy;
                (the nested ALTER EVENT can have anything but DO clause)
              - ALTER  EVENT ... DO DROP EVENT yyy;
              - CREATE PROCEDURE ... BEGIN ALTER EVENT ... END|
                (the nested ALTER EVENT can have anything but DO clause)
              - CREATE PROCEDURE ... BEGIN DROP EVENT ... END|
            */
            if (lex->sphead)
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1907
            {
1908
              my_error(ER_EVENT_RECURSION_FORBIDDEN, MYF(0));
1909
              MYSQL_YYABORT;
1910 1911 1912
            }
              
            if (!(lex->sphead= new sp_head()))
1913
              MYSQL_YYABORT;
1914

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            lex->sphead->reset_thd_mem_root(thd);
1916
            lex->sphead->init(lex);
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            lex->sphead->init_sp_name(thd, lex->event_parse_data->identifier);
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            lex->sphead->m_type= TYPE_ENUM_PROCEDURE;
1920

1921 1922
            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
            lex->sphead->m_chistics= &lex->sp_chistics;
1923

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            lex->sphead->set_body_start(thd, lip->get_cpp_ptr());
1925 1926 1927
          }
          ev_sql_stmt_inner
          {
1928 1929
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
1930

1931
            /* return back to the original memory root ASAP */
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            lex->sphead->set_stmt_end(thd);
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            lex->sphead->restore_thd_mem_root(thd);
1934

1935
            lex->sp_chistics.suid= SP_IS_SUID;  //always the definer!
1936

1937
            lex->event_parse_data->body_changed= TRUE;
1938
          }
1939
        ;
1940

1941 1942 1943 1944
ev_sql_stmt_inner:
          sp_proc_stmt_statement
        | sp_proc_stmt_return
        | sp_proc_stmt_if
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        | case_stmt_specification
1946
        | sp_labeled_control
1947 1948 1949 1950 1951 1952
        | sp_proc_stmt_unlabeled
        | sp_proc_stmt_leave
        | sp_proc_stmt_iterate
        | sp_proc_stmt_open
        | sp_proc_stmt_fetch
        | sp_proc_stmt_close
1953
        ;
1954

1955
clear_privileges:
1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967
          /* Nothing */
          {
           LEX *lex=Lex;
           lex->users_list.empty();
           lex->columns.empty();
           lex->grant= lex->grant_tot_col= 0;
           lex->all_privileges= 0;
           lex->select_lex.db= 0;
           lex->ssl_type= SSL_TYPE_NOT_SPECIFIED;
           lex->ssl_cipher= lex->x509_subject= lex->x509_issuer= 0;
           bzero((char *)&(lex->mqh),sizeof(lex->mqh));
         }
1968 1969
        ;

1970
sp_name:
1971 1972
          ident '.' ident
          {
1973
            if (!$1.str || check_db_name(&$1))
1974
            {
1975 1976 1977 1978
              my_error(ER_WRONG_DB_NAME, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
            if (check_routine_name(&$3))
1979
            {
1980 1981 1982 1983 1984 1985 1986
              MYSQL_YYABORT;
            }
            $$= new sp_name($1, $3, true);
            $$->init_qname(YYTHD);
          }
        | ident
          {
1987 1988
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
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            LEX_STRING db;
1990
            if (check_routine_name(&$1))
1991
            {
1992 1993
              MYSQL_YYABORT;
            }
1994
            if (lex->copy_db_to(&db.str, &db.length))
1995
              MYSQL_YYABORT;
1996
            $$= new sp_name(db, $1, false);
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            if ($$)
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              $$->init_qname(thd);
          }
        ;
2001 2002

create_function_tail:
2003 2004
          RETURNS_SYM udf_type SONAME_SYM TEXT_STRING_sys
          {
2005
            THD *thd= YYTHD;
2006
            LEX *lex= thd->lex;
2007 2008 2009
            if (lex->definer != NULL)
            {
              /*
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                DEFINER is a concept meaningful when interpreting SQL code.
                UDF functions are compiled.
                Using DEFINER with UDF has therefore no semantic,
                and is considered a parsing error.
2014
              */
2015
              my_error(ER_WRONG_USAGE, MYF(0), "SONAME", "DEFINER");
2016
              MYSQL_YYABORT;
2017
            }
2018 2019 2020 2021
            if (is_native_function(thd, & lex->spname->m_name))
            {
              my_error(ER_NATIVE_FCT_NAME_COLLISION, MYF(0),
                       lex->spname->m_name.str);
2022
              MYSQL_YYABORT;
2023
            }
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            lex->sql_command = SQLCOM_CREATE_FUNCTION;
            lex->udf.name = lex->spname->m_name;
            lex->udf.returns=(Item_result) $2;
            lex->udf.dl=$4.str;
          }
        | '('
          {
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            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
2034
            sp_head *sp;
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            const char* tmp_param_begin;
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            /* 
              First check if AGGREGATE was used, in that case it's a
              syntax error.
            */
            if (lex->udf.type == UDFTYPE_AGGREGATE)
            {
              my_error(ER_SP_NO_AGGREGATE, MYF(0));
2044
              MYSQL_YYABORT;
2045 2046
            }

2047 2048 2049 2050 2051 2052 2053 2054 2055
            if (lex->sphead)
            {
              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "FUNCTION");
              MYSQL_YYABORT;
            }
            /* Order is important here: new - reset - init */
            sp= new sp_head();
            sp->reset_thd_mem_root(thd);
            sp->init(lex);
2056
            sp->init_sp_name(thd, lex->spname);
2057

2058 2059 2060 2061 2062 2063 2064
            sp->m_type= TYPE_ENUM_FUNCTION;
            lex->sphead= sp;
            /*
              We have to turn off CLIENT_MULTI_QUERIES while parsing a
              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
            */
2065
            $<ulong_num>$= thd->client_capabilities & CLIENT_MULTI_QUERIES;
2066
            thd->client_capabilities &= ~CLIENT_MULTI_QUERIES;
2067 2068 2069 2070

            tmp_param_begin= lip->get_cpp_tok_start();
            tmp_param_begin++;
            lex->sphead->m_param_begin= tmp_param_begin;
2071
          }
2072
          sp_fdparam_list ')'
2073
          {
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            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
2077

2078
            lex->sphead->m_param_end= lip->get_cpp_tok_start();
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          }
          RETURNS_SYM
          {
            LEX *lex= Lex;
            lex->charset= NULL;
            lex->length= lex->dec= NULL;
            lex->interval_list.empty();
            lex->type= 0;
          }
          type
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
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            /*
              This was disabled in 5.1.12. See bug #20701
              When collation support in SP is implemented, then this test
              should be removed.
            */
2097
            if (($8 == MYSQL_TYPE_STRING || $8 == MYSQL_TYPE_VARCHAR)
2098 2099 2100
                && (lex->type & BINCMP_FLAG))
            {
              my_error(ER_NOT_SUPPORTED_YET, MYF(0), "return value collation");
2101
              MYSQL_YYABORT;
2102
            }
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2103

2104 2105 2106
            if (sp->fill_field_definition(YYTHD, lex,
                                          (enum enum_field_types) $8,
                                          &sp->m_return_field_def))
2107
              MYSQL_YYABORT;
2108

2109 2110 2111 2112
            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
          sp_c_chistics
          {
2113 2114 2115
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
2116

2117
            lex->sphead->m_chistics= &lex->sp_chistics;
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2118
            lex->sphead->set_body_start(thd, lip->get_cpp_tok_start());
2119 2120 2121
          }
          sp_proc_stmt
          {
2122
            THD *thd= YYTHD;
2123 2124
            LEX *lex= thd->lex;
            sp_head *sp= lex->sphead;
2125

2126
            if (sp->is_not_allowed_in_function("function"))
2127
              MYSQL_YYABORT;
2128

2129 2130
            lex->sql_command= SQLCOM_CREATE_SPFUNCTION;
            sp->set_stmt_end(thd);
2131 2132 2133
            if (!(sp->m_flags & sp_head::HAS_RETURN))
            {
              my_error(ER_SP_NORETURN, MYF(0), sp->m_qname.str);
2134
              MYSQL_YYABORT;
2135
            }
2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170
            if (is_native_function(thd, & sp->m_name))
            {
              /*
                This warning will be printed when
                [1] A client query is parsed,
                [2] A stored function is loaded by db_load_routine.
                Printing the warning for [2] is intentional, to cover the
                following scenario:
                - A user define a SF 'foo' using MySQL 5.N
                - An application uses select foo(), and works.
                - MySQL 5.{N+1} defines a new native function 'foo', as
                part of a new feature.
                - MySQL 5.{N+1} documentation is updated, and should mention
                that there is a potential incompatible change in case of
                existing stored function named 'foo'.
                - The user deploys 5.{N+1}. At this point, 'select foo()'
                means something different, and the user code is most likely
                broken (it's only safe if the code is 'select db.foo()').
                With a warning printed when the SF is loaded (which has to occur
                before the call), the warning will provide a hint explaining
                the root cause of a later failure of 'select foo()'.
                With no warning printed, the user code will fail with no
                apparent reason.
                Printing a warning each time db_load_routine is executed for
                an ambiguous function is annoying, since that can happen a lot,
                but in practice should not happen unless there *are* name
                collisions.
                If a collision exists, it should not be silenced but fixed.
              */
              push_warning_printf(thd,
                                  MYSQL_ERROR::WARN_LEVEL_NOTE,
                                  ER_NATIVE_FCT_NAME_COLLISION,
                                  ER(ER_NATIVE_FCT_NAME_COLLISION),
                                  sp->m_name.str);
            }
2171 2172 2173 2174 2175
            /* Restore flag if it was cleared above */
            thd->client_capabilities |= $<ulong_num>2;
            sp->restore_thd_mem_root(thd);
          }
        ;
2176 2177

sp_a_chistics:
2178 2179 2180
          /* Empty */ {}
        | sp_a_chistics sp_chistic {}
        ;
2181 2182

sp_c_chistics:
2183 2184 2185
          /* Empty */ {}
        | sp_c_chistics sp_c_chistic {}
        ;
2186 2187 2188

/* Characteristics for both create and alter */
sp_chistic:
2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203
          COMMENT_SYM TEXT_STRING_sys
          { Lex->sp_chistics.comment= $2; }
        | LANGUAGE_SYM SQL_SYM
          { /* Just parse it, we only have one language for now. */ }
        | NO_SYM SQL_SYM
          { Lex->sp_chistics.daccess= SP_NO_SQL; }
        | CONTAINS_SYM SQL_SYM
          { Lex->sp_chistics.daccess= SP_CONTAINS_SQL; }
        | READS_SYM SQL_SYM DATA_SYM
          { Lex->sp_chistics.daccess= SP_READS_SQL_DATA; }
        | MODIFIES_SYM SQL_SYM DATA_SYM
          { Lex->sp_chistics.daccess= SP_MODIFIES_SQL_DATA; }
        | sp_suid
          {}
        ;
2204 2205 2206

/* Create characteristics */
sp_c_chistic:
2207 2208 2209 2210
          sp_chistic            { }
        | DETERMINISTIC_SYM     { Lex->sp_chistics.detistic= TRUE; }
        | not DETERMINISTIC_SYM { Lex->sp_chistics.detistic= FALSE; }
        ;
2211 2212

sp_suid:
2213 2214 2215 2216 2217 2218 2219 2220 2221
          SQL_SYM SECURITY_SYM DEFINER_SYM
          {
            Lex->sp_chistics.suid= SP_IS_SUID;
          }
        | SQL_SYM SECURITY_SYM INVOKER_SYM
          {
            Lex->sp_chistics.suid= SP_IS_NOT_SUID;
          }
        ;
2222 2223

call:
2224 2225 2226
          CALL_SYM sp_name
          {
            LEX *lex = Lex;
2227

2228 2229 2230 2231 2232
            lex->sql_command= SQLCOM_CALL;
            lex->spname= $2;
            lex->value_list.empty();
            sp_add_used_routine(lex, YYTHD, $2, TYPE_ENUM_PROCEDURE);
          }
2233
          opt_sp_cparam_list {}
2234
        ;
2235 2236

/* CALL parameters */
2237
opt_sp_cparam_list:
2238 2239 2240
          /* Empty */
        | '(' opt_sp_cparams ')'
        ;
2241

2242 2243 2244 2245 2246
opt_sp_cparams:
          /* Empty */
        | sp_cparams
        ;

2247
sp_cparams:
2248 2249 2250 2251 2252 2253 2254 2255 2256
          sp_cparams ',' expr
          {
           Lex->value_list.push_back($3);
          }
        | expr
          {
            Lex->value_list.push_back($1);
          }
        ;
2257 2258 2259

/* Stored FUNCTION parameter declaration list */
sp_fdparam_list:
2260 2261 2262
          /* Empty */
        | sp_fdparams
        ;
2263 2264

sp_fdparams:
2265 2266 2267
          sp_fdparams ',' sp_fdparam
        | sp_fdparam
        ;
2268

2269
sp_init_param:
2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287
          /* Empty */
          {
            LEX *lex= Lex;

            lex->length= 0;
            lex->dec= 0;
            lex->type= 0;

            lex->default_value= 0;
            lex->on_update_value= 0;

            lex->comment= null_lex_str;
            lex->charset= NULL;

            lex->interval_list.empty();
            lex->uint_geom_type= 0;
          }
        ;
2288

2289
sp_fdparam:
2290 2291 2292 2293 2294 2295 2296 2297 2298 2299
          ident sp_init_param type
          {
            LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;

            if (spc->find_variable(&$1, TRUE))
            {
              my_error(ER_SP_DUP_PARAM, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
2300 2301 2302
            sp_variable_t *spvar= spc->push_variable(&$1,
                                                     (enum enum_field_types)$3,
                                                     sp_param_in);
2303 2304 2305

            if (lex->sphead->fill_field_definition(YYTHD, lex,
                                                   (enum enum_field_types) $3,
2306
                                                   &spvar->field_def))
2307
            {
2308
              MYSQL_YYABORT;
2309
            }
2310 2311
            spvar->field_def.field_name= spvar->name.str;
            spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
2312 2313
          }
        ;
2314 2315 2316

/* Stored PROCEDURE parameter declaration list */
sp_pdparam_list:
2317 2318 2319
          /* Empty */
        | sp_pdparams
        ;
2320 2321

sp_pdparams:
2322 2323 2324
          sp_pdparams ',' sp_pdparam
        | sp_pdparam
        ;
2325 2326

sp_pdparam:
2327 2328 2329 2330 2331 2332 2333 2334 2335 2336
          sp_opt_inout sp_init_param ident type
          {
            LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;

            if (spc->find_variable(&$3, TRUE))
            {
              my_error(ER_SP_DUP_PARAM, MYF(0), $3.str);
              MYSQL_YYABORT;
            }
2337 2338 2339
            sp_variable_t *spvar= spc->push_variable(&$3,
                                                     (enum enum_field_types)$4,
                                                     (sp_param_mode_t)$1);
2340 2341 2342

            if (lex->sphead->fill_field_definition(YYTHD, lex,
                                                   (enum enum_field_types) $4,
2343
                                                   &spvar->field_def))
2344
            {
2345
              MYSQL_YYABORT;
2346
            }
2347 2348
            spvar->field_def.field_name= spvar->name.str;
            spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
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          }
        ;
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sp_opt_inout:
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          /* Empty */ { $$= sp_param_in; }
        | IN_SYM      { $$= sp_param_in; }
        | OUT_SYM     { $$= sp_param_out; }
        | INOUT_SYM   { $$= sp_param_inout; }
        ;
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sp_proc_stmts:
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          /* Empty */ {}
        | sp_proc_stmts  sp_proc_stmt ';'
        ;
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sp_proc_stmts1:
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          sp_proc_stmt ';' {}
        | sp_proc_stmts1  sp_proc_stmt ';'
        ;
2368 2369

sp_decls:
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          /* Empty */
          {
            $$.vars= $$.conds= $$.hndlrs= $$.curs= 0;
          }
        | sp_decls sp_decl ';'
          {
            /* We check for declarations out of (standard) order this way
              because letting the grammar rules reflect it caused tricky
               shift/reduce conflicts with the wrong result. (And we get
               better error handling this way.) */
            if (($2.vars || $2.conds) && ($1.curs || $1.hndlrs))
            { /* Variable or condition following cursor or handler */
              my_message(ER_SP_VARCOND_AFTER_CURSHNDLR,
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                         ER(ER_SP_VARCOND_AFTER_CURSHNDLR), MYF(0));
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              MYSQL_YYABORT;
            }
            if ($2.curs && $1.hndlrs)
            { /* Cursor following handler */
              my_message(ER_SP_CURSOR_AFTER_HANDLER,
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                         ER(ER_SP_CURSOR_AFTER_HANDLER), MYF(0));
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              MYSQL_YYABORT;
            }
            $$.vars= $1.vars + $2.vars;
            $$.conds= $1.conds + $2.conds;
            $$.hndlrs= $1.hndlrs + $2.hndlrs;
            $$.curs= $1.curs + $2.curs;
          }
        ;
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sp_decl:
2400
          DECLARE_SYM sp_decl_idents
2401
          {
2402
            LEX *lex= Lex;
2403

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            lex->sphead->reset_lex(YYTHD);
            lex->spcont->declare_var_boundary($2);
          }
2407
          type
2408
          sp_opt_default
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          {
            LEX *lex= Lex;
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            sp_pcontext *pctx= lex->spcont;
2412
            uint num_vars= pctx->context_var_count();
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            enum enum_field_types var_type= (enum enum_field_types) $4;
            Item *dflt_value_item= $5;
            
            if (!dflt_value_item)
2417
            {
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              dflt_value_item= new Item_null();
              /* QQ Set to the var_type with null_value? */
            }
            
            for (uint i = num_vars-$2 ; i < num_vars ; i++)
            {
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              uint var_idx= pctx->var_context2runtime(i);
              sp_variable_t *spvar= pctx->find_variable(var_idx);
2426
            
2427
              if (!spvar)
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                MYSQL_YYABORT;
2429
            
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              spvar->type= var_type;
              spvar->dflt= dflt_value_item;
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              if (lex->sphead->fill_field_definition(YYTHD, lex, var_type,
2434
                                                     &spvar->field_def))
2435
              {
2436
                MYSQL_YYABORT;
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              }
            
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              spvar->field_def.field_name= spvar->name.str;
              spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
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              /* The last instruction is responsible for freeing LEX. */

              lex->sphead->add_instr(
                new sp_instr_set(lex->sphead->instructions(), pctx, var_idx,
                                 dflt_value_item, var_type, lex,
                                 (i == num_vars - 1)));
2448
            }
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            pctx->declare_var_boundary(0);
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            lex->sphead->restore_lex(YYTHD);
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            $$.vars= $2;
            $$.conds= $$.hndlrs= $$.curs= 0;
          }
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        | DECLARE_SYM ident CONDITION_SYM FOR_SYM sp_cond
          {
            LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;

            if (spc->find_cond(&$2, TRUE))
            {
              my_error(ER_SP_DUP_COND, MYF(0), $2.str);
              MYSQL_YYABORT;
            }
            YYTHD->lex->spcont->push_cond(&$2, $5);
            $$.vars= $$.hndlrs= $$.curs= 0;
            $$.conds= 1;
          }
        | DECLARE_SYM sp_handler_type HANDLER_SYM FOR_SYM
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
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            lex->spcont= lex->spcont->push_context(LABEL_HANDLER_SCOPE);

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            sp_pcontext *ctx= lex->spcont;
            sp_instr_hpush_jump *i=
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              new sp_instr_hpush_jump(sp->instructions(), ctx, $2,
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                                      ctx->current_var_count());
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            sp->add_instr(i);
            sp->push_backpatch(i, ctx->push_label((char *)"", 0));
          }
          sp_hcond_list sp_proc_stmt
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont;
            sp_label_t *hlab= lex->spcont->pop_label(); /* After this hdlr */
            sp_instr_hreturn *i;

            if ($2 == SP_HANDLER_CONTINUE)
            {
              i= new sp_instr_hreturn(sp->instructions(), ctx,
                                      ctx->current_var_count());
              sp->add_instr(i);
            }
            else
            {  /* EXIT or UNDO handler, just jump to the end of the block */
              i= new sp_instr_hreturn(sp->instructions(), ctx, 0);

              sp->add_instr(i);
              sp->push_backpatch(i, lex->spcont->last_label()); /* Block end */
            }
            lex->sphead->backpatch(hlab);
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            lex->spcont= ctx->pop_context();

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            $$.vars= $$.conds= $$.curs= 0;
            $$.hndlrs= $6;
            lex->spcont->add_handlers($6);
          }
        | DECLARE_SYM ident CURSOR_SYM FOR_SYM sp_cursor_stmt
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont;
            uint offp;
            sp_instr_cpush *i;

            if (ctx->find_cursor(&$2, &offp, TRUE))
            {
              my_error(ER_SP_DUP_CURS, MYF(0), $2.str);
              delete $5;
              MYSQL_YYABORT;
            }
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            i= new sp_instr_cpush(sp->instructions(), ctx, $5,
2529
                                  ctx->current_cursor_count());
2530 2531 2532 2533 2534 2535
            sp->add_instr(i);
            ctx->push_cursor(&$2);
            $$.vars= $$.conds= $$.hndlrs= 0;
            $$.curs= 1;
          }
        ;
2536 2537

sp_cursor_stmt:
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          {
            Lex->sphead->reset_lex(YYTHD);

            /*
             We use statement here just be able to get a better
              error message. Using 'select' works too, but will then
             result in a generic "syntax error" if a non-select
             statement is given.
            */
          }
          statement
          {
            LEX *lex= Lex;
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2552 2553 2554 2555
            if (lex->sql_command != SQLCOM_SELECT &&
               !(sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND))
            {
              my_message(ER_SP_BAD_CURSOR_QUERY, ER(ER_SP_BAD_CURSOR_QUERY),
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                         MYF(0));
2557 2558 2559 2560 2561
              MYSQL_YYABORT;
            }
            if (lex->result)
            {
              my_message(ER_SP_BAD_CURSOR_SELECT, ER(ER_SP_BAD_CURSOR_SELECT),
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                         MYF(0));
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              MYSQL_YYABORT;
            }
            lex->sp_lex_in_use= TRUE;
            $$= lex;
            lex->sphead->restore_lex(YYTHD);
          }
        ;
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sp_handler_type:
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          EXIT_SYM      { $$= SP_HANDLER_EXIT; }
        | CONTINUE_SYM  { $$= SP_HANDLER_CONTINUE; }
        /*| UNDO_SYM      { QQ No yet } */
        ;
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sp_hcond_list:
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          sp_hcond_element
          { $$= 1; }
        | sp_hcond_list ',' sp_hcond_element
          { $$+= 1; }
        ;

sp_hcond_element:
2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598
          sp_hcond
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont->parent_context();

            if (ctx->find_handler($1))
            {
              my_message(ER_SP_DUP_HANDLER, ER(ER_SP_DUP_HANDLER), MYF(0));
              MYSQL_YYABORT;
            }
            else
            {
              sp_instr_hpush_jump *i=
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                (sp_instr_hpush_jump *)sp->last_instruction();
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              i->add_condition($1);
              ctx->push_handler($1);
            }
          }
        ;
2606 2607

sp_cond:
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          ulong_num
          { /* mysql errno */
            $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
            $$->type= sp_cond_type_t::number;
            $$->mysqlerr= $1;
          }
        | SQLSTATE_SYM opt_value TEXT_STRING_literal
          { /* SQLSTATE */
            if (!sp_cond_check(&$3))
            {
              my_error(ER_SP_BAD_SQLSTATE, MYF(0), $3.str);
              MYSQL_YYABORT;
            }
            $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
            $$->type= sp_cond_type_t::state;
            memcpy($$->sqlstate, $3.str, 5);
            $$->sqlstate[5]= '\0';
          }
        ;
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opt_value:
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          /* Empty */  {}
        | VALUE_SYM    {}
        ;
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sp_hcond:
2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662
          sp_cond
          {
            $$= $1;
          }
        | ident /* CONDITION name */
          {
            $$= Lex->spcont->find_cond(&$1);
            if ($$ == NULL)
            {
              my_error(ER_SP_COND_MISMATCH, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
          }
        | SQLWARNING_SYM /* SQLSTATEs 01??? */
          {
            $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
            $$->type= sp_cond_type_t::warning;
          }
        | not FOUND_SYM /* SQLSTATEs 02??? */
          {
            $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
            $$->type= sp_cond_type_t::notfound;
          }
        | SQLEXCEPTION_SYM /* All other SQLSTATEs */
          {
            $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
            $$->type= sp_cond_type_t::exception;
          }
        ;
2663 2664

sp_decl_idents:
2665 2666
          ident
          {
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            /* NOTE: field definition is filled in sp_decl section. */

2669 2670
            LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;
2671

2672 2673 2674 2675 2676 2677 2678 2679 2680 2681
            if (spc->find_variable(&$1, TRUE))
            {
              my_error(ER_SP_DUP_VAR, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
            spc->push_variable(&$1, (enum_field_types)0, sp_param_in);
            $$= 1;
          }
        | sp_decl_idents ',' ident
          {
2682 2683
            /* NOTE: field definition is filled in sp_decl section. */

2684 2685
            LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;
2686

2687 2688 2689 2690 2691 2692 2693 2694 2695
            if (spc->find_variable(&$3, TRUE))
            {
              my_error(ER_SP_DUP_VAR, MYF(0), $3.str);
              MYSQL_YYABORT;
            }
            spc->push_variable(&$3, (enum_field_types)0, sp_param_in);
            $$= $1 + 1;
          }
        ;
2696 2697

sp_opt_default:
2698
          /* Empty */ { $$ = NULL; }
2699
        | DEFAULT expr { $$ = $2; }
2700
        ;
2701 2702

sp_proc_stmt:
2703
          sp_proc_stmt_statement
2704
        | sp_proc_stmt_return
2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715
        | sp_proc_stmt_if
        | case_stmt_specification
        | sp_labeled_control
        | sp_proc_stmt_unlabeled
        | sp_proc_stmt_leave
        | sp_proc_stmt_iterate
        | sp_proc_stmt_open
        | sp_proc_stmt_fetch
        | sp_proc_stmt_close
        ;

2716
sp_proc_stmt_if:
2717 2718 2719 2720
          IF
          { Lex->sphead->new_cont_backpatch(NULL); }
          sp_if END IF
          { Lex->sphead->do_cont_backpatch(); }
2721 2722 2723
        ;
        
sp_proc_stmt_statement:
2724
          {
2725 2726 2727
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
2728

2729
            lex->sphead->reset_lex(thd);
2730
            lex->sphead->m_tmp_query= lip->get_tok_start();
2731 2732 2733
          }
          statement
          {
2734 2735 2736
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
2737
            sp_head *sp= lex->sphead;
2738

2739
            sp->m_flags|= sp_get_flags_for_command(lex);
2740 2741 2742 2743 2744 2745
            if (lex->sql_command == SQLCOM_CHANGE_DB)
            { /* "USE db" doesn't work in a procedure */
              my_error(ER_SP_BADSTATEMENT, MYF(0), "USE");
              MYSQL_YYABORT;
            }
            /*
2746 2747 2748
              Don't add an instruction for SET statements, since all
              instructions for them were already added during processing
              of "set" rule.
2749
            */
2750 2751 2752
            DBUG_ASSERT(lex->sql_command != SQLCOM_SET_OPTION ||
                        lex->var_list.is_empty());
            if (lex->sql_command != SQLCOM_SET_OPTION)
2753
            {
2754 2755
              sp_instr_stmt *i=new sp_instr_stmt(sp->instructions(),
                                                 lex->spcont, lex);
2756

2757 2758 2759 2760 2761 2762
              /*
                Extract the query statement from the tokenizer.  The
                end is either lex->ptr, if there was no lookahead,
                lex->tok_end otherwise.
              */
              if (yychar == YYEMPTY)
2763
                i->m_query.length= lip->get_ptr() - sp->m_tmp_query;
2764
              else
2765
                i->m_query.length= lip->get_tok_end() - sp->m_tmp_query;
2766
              i->m_query.str= strmake_root(thd->mem_root,
2767
                                           sp->m_tmp_query,
2768 2769
                                           i->m_query.length);
              sp->add_instr(i);
2770
            }
2771
            sp->restore_lex(thd);
2772
          }
2773 2774 2775
        ;

sp_proc_stmt_return:
2776
          RETURN_SYM 
2777 2778
          { Lex->sphead->reset_lex(YYTHD); }
          expr
2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;

            if (sp->m_type != TYPE_ENUM_FUNCTION)
            {
              my_message(ER_SP_BADRETURN, ER(ER_SP_BADRETURN), MYF(0));
              MYSQL_YYABORT;
            }
            else
            {
              sp_instr_freturn *i;

              i= new sp_instr_freturn(sp->instructions(), lex->spcont, $3,
2793
                                      sp->m_return_field_def.sql_type, lex);
2794 2795 2796 2797 2798
              sp->add_instr(i);
              sp->m_flags|= sp_head::HAS_RETURN;
            }
            sp->restore_lex(YYTHD);
          }
2799 2800 2801
        ;

sp_proc_stmt_unlabeled:
2802 2803
          { /* Unlabeled controls get a secret label. */
            LEX *lex= Lex;
2804

2805 2806 2807 2808 2809
            lex->spcont->push_label((char *)"", lex->sphead->instructions());
          }
          sp_unlabeled_control
          {
            LEX *lex= Lex;
2810

2811 2812
            lex->sphead->backpatch(lex->spcont->pop_label());
          }
2813 2814 2815
        ;

sp_proc_stmt_leave:
2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841
          LEAVE_SYM label_ident
          {
            LEX *lex= Lex;
            sp_head *sp = lex->sphead;
            sp_pcontext *ctx= lex->spcont;
            sp_label_t *lab= ctx->find_label($2.str);

            if (! lab)
            {
              my_error(ER_SP_LILABEL_MISMATCH, MYF(0), "LEAVE", $2.str);
              MYSQL_YYABORT;
            }
            else
            {
              sp_instr_jump *i;
              uint ip= sp->instructions();
              uint n;

              n= ctx->diff_handlers(lab->ctx, TRUE);  /* Exclusive the dest. */
              if (n)
                sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
              n= ctx->diff_cursors(lab->ctx, TRUE);  /* Exclusive the dest. */
              if (n)
                sp->add_instr(new sp_instr_cpop(ip++, ctx, n));
              i= new sp_instr_jump(ip, ctx);
              sp->push_backpatch(i, lab);  /* Jumping forward */
2842
              sp->add_instr(i);
2843 2844
            }
          }
2845 2846 2847
        ;

sp_proc_stmt_iterate:
2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872
          ITERATE_SYM label_ident
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont;
            sp_label_t *lab= ctx->find_label($2.str);

            if (! lab || lab->type != SP_LAB_ITER)
            {
              my_error(ER_SP_LILABEL_MISMATCH, MYF(0), "ITERATE", $2.str);
              MYSQL_YYABORT;
            }
            else
            {
              sp_instr_jump *i;
              uint ip= sp->instructions();
              uint n;

              n= ctx->diff_handlers(lab->ctx, FALSE);  /* Inclusive the dest. */
              if (n)
                sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
              n= ctx->diff_cursors(lab->ctx, FALSE);  /* Inclusive the dest. */
              if (n)
                sp->add_instr(new sp_instr_cpop(ip++, ctx, n));
              i= new sp_instr_jump(ip, ctx, lab->ip); /* Jump back */
2873
              sp->add_instr(i);
2874 2875
            }
          }
2876 2877 2878
        ;

sp_proc_stmt_open:
2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893
          OPEN_SYM ident
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            uint offset;
            sp_instr_copen *i;

            if (! lex->spcont->find_cursor(&$2, &offset))
            {
              my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $2.str);
              MYSQL_YYABORT;
            }
            i= new sp_instr_copen(sp->instructions(), lex->spcont, offset);
            sp->add_instr(i);
          }
2894 2895 2896
        ;

sp_proc_stmt_fetch:
2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913
          FETCH_SYM sp_opt_fetch_noise ident INTO
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            uint offset;
            sp_instr_cfetch *i;

            if (! lex->spcont->find_cursor(&$3, &offset))
            {
              my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $3.str);
              MYSQL_YYABORT;
            }
            i= new sp_instr_cfetch(sp->instructions(), lex->spcont, offset);
            sp->add_instr(i);
          }
          sp_fetch_list
          {}
2914 2915 2916
        ;

sp_proc_stmt_close:
2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932
          CLOSE_SYM ident
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            uint offset;
            sp_instr_cclose *i;

            if (! lex->spcont->find_cursor(&$2, &offset))
            {
              my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $2.str);
              MYSQL_YYABORT;
            }
            i= new sp_instr_cclose(sp->instructions(), lex->spcont,  offset);
            sp->add_instr(i);
          }
        ;
2933 2934

sp_opt_fetch_noise:
2935 2936 2937 2938
          /* Empty */
        | NEXT_SYM FROM
        | FROM
        ;
2939 2940

sp_fetch_list:
2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981
          ident
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *spc= lex->spcont;
            sp_variable_t *spv;

            if (!spc || !(spv = spc->find_variable(&$1)))
            {
              my_error(ER_SP_UNDECLARED_VAR, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
            else
            {
              /* An SP local variable */
              sp_instr_cfetch *i= (sp_instr_cfetch *)sp->last_instruction();

              i->add_to_varlist(spv);
            }
          }
        | sp_fetch_list ',' ident
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *spc= lex->spcont;
            sp_variable_t *spv;

            if (!spc || !(spv = spc->find_variable(&$3)))
            {
              my_error(ER_SP_UNDECLARED_VAR, MYF(0), $3.str);
              MYSQL_YYABORT;
            }
            else
            {
              /* An SP local variable */
              sp_instr_cfetch *i= (sp_instr_cfetch *)sp->last_instruction();

              i->add_to_varlist(spv);
            }
          }
        ;
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sp_if:
2984 2985
          { Lex->sphead->reset_lex(YYTHD); }
          expr THEN_SYM
2986 2987 2988 2989 2990 2991
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont;
            uint ip= sp->instructions();
            sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, ctx,
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                                                               $2, lex);
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2994
            sp->push_backpatch(i, ctx->push_label((char *)"", 0));
2995
            sp->add_cont_backpatch(i);
2996
            sp->add_instr(i);
2997
            sp->restore_lex(YYTHD);
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          }
          sp_proc_stmts1
          {
            sp_head *sp= Lex->sphead;
            sp_pcontext *ctx= Lex->spcont;
            uint ip= sp->instructions();
            sp_instr_jump *i = new sp_instr_jump(ip, ctx);
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3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016
            sp->add_instr(i);
            sp->backpatch(ctx->pop_label());
            sp->push_backpatch(i, ctx->push_label((char *)"", 0));
          }
          sp_elseifs
          {
            LEX *lex= Lex;

            lex->sphead->backpatch(lex->spcont->pop_label());
          }
        ;
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sp_elseifs:
3019 3020 3021 3022
          /* Empty */
        | ELSEIF_SYM sp_if
        | ELSE sp_proc_stmts1
        ;
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case_stmt_specification:
          simple_case_stmt
        | searched_case_stmt
        ;
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simple_case_stmt:
          CASE_SYM
          {
            LEX *lex= Lex;
            case_stmt_action_case(lex);
            lex->sphead->reset_lex(YYTHD); /* For expr $3 */
          }
          expr
          {
            LEX *lex= Lex;
            if (case_stmt_action_expr(lex, $3))
3040
              MYSQL_YYABORT;
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            lex->sphead->restore_lex(YYTHD); /* For expr $3 */
          }
          simple_when_clause_list
          else_clause_opt
          END
          CASE_SYM
          {
            LEX *lex= Lex;
            case_stmt_action_end_case(lex, true);
          }
        ;
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searched_case_stmt:
          CASE_SYM
          {
            LEX *lex= Lex;
            case_stmt_action_case(lex);
          }
          searched_when_clause_list
          else_clause_opt
          END
          CASE_SYM
          {
            LEX *lex= Lex;
            case_stmt_action_end_case(lex, false);
          }
        ;
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simple_when_clause_list:
          simple_when_clause
        | simple_when_clause_list simple_when_clause
        ;
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searched_when_clause_list:
          searched_when_clause
        | searched_when_clause_list searched_when_clause
        ;
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simple_when_clause:
          WHEN_SYM
          {
            Lex->sphead->reset_lex(YYTHD); /* For expr $3 */
          }
          expr
          {
            /* Simple case: <caseval> = <whenval> */
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            LEX *lex= Lex;
            case_stmt_action_when(lex, $3, true);
            lex->sphead->restore_lex(YYTHD); /* For expr $3 */
          }
          THEN_SYM
          sp_proc_stmts1
          {
            LEX *lex= Lex;
            case_stmt_action_then(lex);
          }
        ;
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searched_when_clause:
          WHEN_SYM
          {
            Lex->sphead->reset_lex(YYTHD); /* For expr $3 */
          }
          expr
          {
            LEX *lex= Lex;
            case_stmt_action_when(lex, $3, false);
            lex->sphead->restore_lex(YYTHD); /* For expr $3 */
          }
          THEN_SYM
          sp_proc_stmts1
          {
            LEX *lex= Lex;
            case_stmt_action_then(lex);
          }
        ;
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else_clause_opt:
          /* empty */
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            uint ip= sp->instructions();
            sp_instr_error *i= new sp_instr_error(ip, lex->spcont,
                                                  ER_SP_CASE_NOT_FOUND);
            sp->add_instr(i);
          }
        | ELSE sp_proc_stmts1
        ;
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sp_labeled_control:
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          label_ident ':'
          {
            LEX *lex= Lex;
            sp_pcontext *ctx= lex->spcont;
            sp_label_t *lab= ctx->find_label($1.str);

            if (lab)
            {
              my_error(ER_SP_LABEL_REDEFINE, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
            else
            {
              lab= lex->spcont->push_label($1.str,
                                           lex->sphead->instructions());
              lab->type= SP_LAB_ITER;
            }
          }
          sp_unlabeled_control sp_opt_label
          {
            LEX *lex= Lex;

            if ($5.str)
            {
              sp_label_t *lab= lex->spcont->find_label($5.str);

              if (!lab ||
                  my_strcasecmp(system_charset_info, $5.str, lab->name) != 0)
              {
                my_error(ER_SP_LABEL_MISMATCH, MYF(0), $5.str);
                MYSQL_YYABORT;
              }
            }
            lex->sphead->backpatch(lex->spcont->pop_label());
          }
        ;
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sp_opt_label:
3172
          /* Empty  */  { $$= null_lex_str; }
3173
        | label_ident   { $$= $1; }
3174
        ;
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sp_unlabeled_control:
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          BEGIN_SYM
          { /* QQ This is just a dummy for grouping declarations and statements
              together. No [[NOT] ATOMIC] yet, and we need to figure out how
              make it coexist with the existing BEGIN COMMIT/ROLLBACK. */
            LEX *lex= Lex;
            sp_label_t *lab= lex->spcont->last_label();
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            lab->type= SP_LAB_BEGIN;
            lex->spcont= lex->spcont->push_context(LABEL_DEFAULT_SCOPE);
          }
          sp_decls
          sp_proc_stmts
          END
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            sp_pcontext *ctx= lex->spcont;

            sp->backpatch(ctx->last_label()); /* We always have a label */
            if ($3.hndlrs)
              sp->add_instr(new sp_instr_hpop(sp->instructions(), ctx,
                                              $3.hndlrs));
            if ($3.curs)
              sp->add_instr(new sp_instr_cpop(sp->instructions(), ctx,
                                              $3.curs));
            lex->spcont= ctx->pop_context();
          }
        | LOOP_SYM
          sp_proc_stmts1 END LOOP_SYM
          {
            LEX *lex= Lex;
            uint ip= lex->sphead->instructions();
            sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
            sp_instr_jump *i = new sp_instr_jump(ip, lex->spcont, lab->ip);

            lex->sphead->add_instr(i);
          }
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        | WHILE_SYM 
          { Lex->sphead->reset_lex(YYTHD); }
          expr DO_SYM
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          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;
            uint ip= sp->instructions();
            sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, lex->spcont,
                                                               $3, lex);

            /* Jumping forward */
            sp->push_backpatch(i, lex->spcont->last_label());
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            sp->new_cont_backpatch(i);
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            sp->add_instr(i);
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            sp->restore_lex(YYTHD);
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          }
          sp_proc_stmts1 END WHILE_SYM
          {
            LEX *lex= Lex;
            uint ip= lex->sphead->instructions();
            sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
            sp_instr_jump *i = new sp_instr_jump(ip, lex->spcont, lab->ip);
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            lex->sphead->add_instr(i);
3238
            lex->sphead->do_cont_backpatch();
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          }
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        | REPEAT_SYM sp_proc_stmts1 UNTIL_SYM 
          { Lex->sphead->reset_lex(YYTHD); }
          expr END REPEAT_SYM
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          {
            LEX *lex= Lex;
            uint ip= lex->sphead->instructions();
            sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
            sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, lex->spcont,
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                                                               $5, lab->ip,
                                                               lex);
3250
            lex->sphead->add_instr(i);
3251
            lex->sphead->restore_lex(YYTHD);
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            /* We can shortcut the cont_backpatch here */
            i->m_cont_dest= ip+1;
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          }
        ;
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trg_action_time:
3258
            BEFORE_SYM
3259
            { Lex->trg_chistics.action_time= TRG_ACTION_BEFORE; }
3260
          | AFTER_SYM
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            { Lex->trg_chistics.action_time= TRG_ACTION_AFTER; }
          ;

trg_event:
3265
            INSERT
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            { Lex->trg_chistics.event= TRG_EVENT_INSERT; }
          | UPDATE_SYM
            { Lex->trg_chistics.event= TRG_EVENT_UPDATE; }
          | DELETE_SYM
            { Lex->trg_chistics.event= TRG_EVENT_DELETE; }
3271
          ;
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/*
  This part of the parser contains common code for all TABLESPACE
  commands.
  CREATE TABLESPACE name ...
  ALTER TABLESPACE name CHANGE DATAFILE ...
  ALTER TABLESPACE name ADD DATAFILE ...
  ALTER TABLESPACE name access_mode
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  CREATE LOGFILE GROUP_SYM name ...
  ALTER LOGFILE GROUP_SYM name ADD UNDOFILE ..
  ALTER LOGFILE GROUP_SYM name ADD REDOFILE ..
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  DROP TABLESPACE name
3283
  DROP LOGFILE GROUP_SYM name
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*/
change_tablespace_access:
          tablespace_name
          ts_access_mode
3288
        ;
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change_tablespace_info:
          tablespace_name
          CHANGE ts_datafile
          change_ts_option_list
3294
        ;
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tablespace_info:
          tablespace_name
          ADD ts_datafile
          opt_logfile_group_name
          tablespace_option_list
3301
        ;
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opt_logfile_group_name:
          /* empty */ {}
3305
        | USE_SYM LOGFILE_SYM GROUP_SYM ident
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->logfile_group_name= $4.str;
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          }
        ;
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alter_tablespace_info:
          tablespace_name
          ADD ts_datafile
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          alter_tablespace_option_list
          { 
            Lex->alter_tablespace_info->ts_alter_tablespace_type= ALTER_TABLESPACE_ADD_FILE; 
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          }
3319
        | tablespace_name
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          DROP ts_datafile
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          alter_tablespace_option_list
          { 
            Lex->alter_tablespace_info->ts_alter_tablespace_type= ALTER_TABLESPACE_DROP_FILE; 
          }
        ;
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logfile_group_info:
          logfile_group_name
          add_log_file
          logfile_group_option_list
3331
        ;
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alter_logfile_group_info:
          logfile_group_name
          add_log_file
          alter_logfile_group_option_list
3337
        ;
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add_log_file:
          ADD lg_undofile
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        | ADD lg_redofile
        ;
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change_ts_option_list:
          /* empty */ {}
          change_ts_options
3347
        ;
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change_ts_options:
          change_ts_option
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        | change_ts_options change_ts_option
        | change_ts_options ',' change_ts_option
        ;
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change_ts_option:
          opt_ts_initial_size
3357 3358 3359
        | opt_ts_autoextend_size
        | opt_ts_max_size
        ;
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tablespace_option_list:
          /* empty */ {}
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        tablespace_options
        ;
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tablespace_options:
          tablespace_option
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        | tablespace_options tablespace_option
        | tablespace_options ',' tablespace_option
        ;
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tablespace_option:
          opt_ts_initial_size
3374 3375 3376 3377 3378 3379 3380 3381
        | opt_ts_autoextend_size
        | opt_ts_max_size
        | opt_ts_extent_size
        | opt_ts_nodegroup
        | opt_ts_engine
        | ts_wait
        | opt_ts_comment
        ;
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alter_tablespace_option_list:
          /* empty */ {}
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        alter_tablespace_options
        ;
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alter_tablespace_options:
          alter_tablespace_option
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        | alter_tablespace_options alter_tablespace_option
        | alter_tablespace_options ',' alter_tablespace_option
        ;
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alter_tablespace_option:
          opt_ts_initial_size
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        | opt_ts_autoextend_size
        | opt_ts_max_size
        | opt_ts_engine
        | ts_wait
        ;
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logfile_group_option_list:
          /* empty */ {}
3404 3405
        logfile_group_options
        ;
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logfile_group_options:
          logfile_group_option
3409 3410 3411
        | logfile_group_options logfile_group_option
        | logfile_group_options ',' logfile_group_option
        ;
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logfile_group_option:
          opt_ts_initial_size
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        | opt_ts_undo_buffer_size
        | opt_ts_redo_buffer_size
        | opt_ts_nodegroup
        | opt_ts_engine
        | ts_wait
        | opt_ts_comment
        ;
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alter_logfile_group_option_list:
          /* empty */ {}
          alter_logfile_group_options
3426
        ;
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alter_logfile_group_options:
          alter_logfile_group_option
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        | alter_logfile_group_options alter_logfile_group_option
        | alter_logfile_group_options ',' alter_logfile_group_option
        ;
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alter_logfile_group_option:
          opt_ts_initial_size
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        | opt_ts_engine
        | ts_wait
        ;
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ts_datafile:
          DATAFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->data_file_name= $2.str;
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          }
        ;
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lg_undofile:
          UNDOFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->undo_file_name= $2.str;
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          }
        ;
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lg_redofile:
          REDOFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->redo_file_name= $2.str;
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          }
        ;
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tablespace_name:
          ident
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info= new st_alter_tablespace();
            lex->alter_tablespace_info->tablespace_name= $1.str;
            lex->sql_command= SQLCOM_ALTER_TABLESPACE;
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          }
        ;
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logfile_group_name:
          ident
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info= new st_alter_tablespace();
            lex->alter_tablespace_info->logfile_group_name= $1.str;
            lex->sql_command= SQLCOM_ALTER_TABLESPACE;
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          }
        ;
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ts_access_mode:
          READ_ONLY_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_READ_ONLY;
          }
3491
        | READ_WRITE_SYM
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_READ_WRITE;
          }
3496
        | NOT_SYM ACCESSIBLE_SYM
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_NOT_ACCESSIBLE;
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          }
        ;
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opt_ts_initial_size:
          INITIAL_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->initial_size= $3;
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          }
        ;
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opt_ts_autoextend_size:
          AUTOEXTEND_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->autoextend_size= $3;
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          }
        ;
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opt_ts_max_size:
          MAX_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->max_size= $3;
3524 3525
          }
        ;
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opt_ts_extent_size:
          EXTENT_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->extent_size= $3;
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          }
        ;
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opt_ts_undo_buffer_size:
          UNDO_BUFFER_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->undo_buffer_size= $3;
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          }
        ;
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opt_ts_redo_buffer_size:
          REDO_BUFFER_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->redo_buffer_size= $3;
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          }
        ;
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opt_ts_nodegroup:
3552
          NODEGROUP_SYM opt_equal real_ulong_num
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          {
            LEX *lex= Lex;
            if (lex->alter_tablespace_info->nodegroup_id != UNDEF_NODEGROUP)
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"NODEGROUP");
3558
              MYSQL_YYABORT;
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            }
            lex->alter_tablespace_info->nodegroup_id= $3;
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          }
        ;
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opt_ts_comment:
          COMMENT_SYM opt_equal TEXT_STRING_sys
          {
            LEX *lex= Lex;
            if (lex->alter_tablespace_info->ts_comment != NULL)
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"COMMENT");
3571
              MYSQL_YYABORT;
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            }
            lex->alter_tablespace_info->ts_comment= $3.str;
3574 3575
          }
        ;
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opt_ts_engine:
          opt_storage ENGINE_SYM opt_equal storage_engines
          {
            LEX *lex= Lex;
3581
            if (lex->alter_tablespace_info->storage_engine != NULL)
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            {
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merge  
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),
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                       "STORAGE ENGINE");
3585
              MYSQL_YYABORT;
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            }
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            lex->alter_tablespace_info->storage_engine= $4;
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          }
        ;
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opt_ts_wait:
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          /* empty */
3593 3594
        | ts_wait
        ;
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ts_wait:
          WAIT_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->wait_until_completed= TRUE;
          }
3602
        | NO_WAIT_SYM
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          {
            LEX *lex= Lex;
            if (!(lex->alter_tablespace_info->wait_until_completed))
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"NO_WAIT");
3608
              MYSQL_YYABORT;
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            }
            lex->alter_tablespace_info->wait_until_completed= FALSE;
3611 3612
          }
        ;
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size_number:
3615
          real_ulong_num { $$= $1;}
3616
        | IDENT
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3617
          {
3618
            ulonglong number;
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            uint text_shift_number= 0;
            longlong prefix_number;
            char *start_ptr= $1.str;
3622
            uint str_len= $1.length;
3623
            char *end_ptr= start_ptr + str_len;
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3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642
            int error;
            prefix_number= my_strtoll10(start_ptr, &end_ptr, &error);
            if ((start_ptr + str_len - 1) == end_ptr)
            {
              switch (end_ptr[0])
              {
                case 'g':
                case 'G':
                  text_shift_number+=10;
                case 'm':
                case 'M':
                  text_shift_number+=10;
                case 'k':
                case 'K':
                  text_shift_number+=10;
                  break;
                default:
                {
                  my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
3643
                  MYSQL_YYABORT;
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3644 3645 3646 3647 3648
                }
              }
              if (prefix_number >> 31)
              {
                my_error(ER_SIZE_OVERFLOW_ERROR, MYF(0));
3649
                MYSQL_YYABORT;
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              }
              number= prefix_number << text_shift_number;
            }
            else
            {
              my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
3656
              MYSQL_YYABORT;
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            }
            $$= number;
          }
3660
        ;
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/*
  End tablespace part
*/
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create2:
3667
          '(' create2a {}
3668
        | opt_create_table_options
3669
          opt_partitioning {}
3670
          create3 {}
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        | LIKE table_ident
          {
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            THD *thd= YYTHD;
            LEX *lex= thd->lex;

            lex->create_info.options|= HA_LEX_CREATE_TABLE_LIKE;
            if (!lex->select_lex.add_table_to_list(thd, $2, NULL, 0, TL_READ))
3678
              MYSQL_YYABORT;
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3679 3680 3681
          }
        | '(' LIKE table_ident ')'
          {
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            THD *thd= YYTHD;
            LEX *lex= thd->lex;

            lex->create_info.options|= HA_LEX_CREATE_TABLE_LIKE;
            if (!lex->select_lex.add_table_to_list(thd, $3, NULL, 0, TL_READ))
3687
              MYSQL_YYABORT;
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          }
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        ;
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create2a:
3692
          field_list ')' opt_create_table_options
3693 3694 3695 3696 3697
          opt_partitioning {}
          create3 {}
        |  opt_partitioning {}
           create_select ')'
           { Select->set_braces(1);} union_opt {}
3698
        ;
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3699 3700

create3:
3701 3702
          /* empty */ {}
        | opt_duplicate opt_as create_select
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          { Select->set_braces(0);} union_clause {}
3704
        | opt_duplicate opt_as '(' create_select ')'
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          { Select->set_braces(1);} union_opt {}
3706 3707
        ;

3708 3709 3710
/*
 This part of the parser is about handling of the partition information.

3711
 It's first version was written by Mikael Ronström with lots of answers to
3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732
 questions provided by Antony Curtis.

 The partition grammar can be called from three places.
 1) CREATE TABLE ... PARTITION ..
 2) ALTER TABLE table_name PARTITION ...
 3) PARTITION ...

 The first place is called when a new table is created from a MySQL client.
 The second place is called when a table is altered with the ALTER TABLE
 command from a MySQL client.
 The third place is called when opening an frm file and finding partition
 info in the .frm file. It is necessary to avoid allowing PARTITION to be
 an allowed entry point for SQL client queries. This is arranged by setting
 some state variables before arriving here.

 To be able to handle errors we will only set error code in this code
 and handle the error condition in the function calling the parser. This
 is necessary to ensure we can also handle errors when calling the parser
 from the openfrm function.
*/
opt_partitioning:
3733
          /* empty */ {}
3734 3735 3736 3737
        | partitioning
        ;

partitioning:
3738
          PARTITION_SYM
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3739
          {
3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759
#ifdef WITH_PARTITION_STORAGE_ENGINE
            LEX *lex= Lex;
            LEX_STRING partition_name={C_STRING_WITH_LEN("partition")};
            if (!plugin_is_ready(&partition_name, MYSQL_STORAGE_ENGINE_PLUGIN))
            {
              my_error(ER_FEATURE_DISABLED, MYF(0),
                      "partitioning", "--with-partition");
              MYSQL_YYABORT;
            }
            lex->part_info= new partition_info();
            if (!lex->part_info)
            {
              mem_alloc_error(sizeof(partition_info));
              MYSQL_YYABORT;
            }
            if (lex->sql_command == SQLCOM_ALTER_TABLE)
            {
              lex->alter_info.flags|= ALTER_PARTITION;
            }
#else
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3760 3761
            my_error(ER_FEATURE_DISABLED, MYF(0),
                     "partitioning", "--with-partition");
3762
            MYSQL_YYABORT;
3763 3764
#endif

3765 3766
          }
          partition
3767 3768 3769
        ;

partition_entry:
3770
          PARTITION_SYM
3771
          {
3772 3773 3774 3775 3776 3777 3778 3779 3780 3781
            LEX *lex= Lex;
            if (!lex->part_info)
            {
              my_parse_error(ER(ER_PARTITION_ENTRY_ERROR));
              MYSQL_YYABORT;
            }
            /*
              We enter here when opening the frm file to translate
              partition info string into part_info data structure.
            */
3782
          }
3783
          partition {}
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        ;
3785 3786

partition:
3787
          BY part_type_def opt_no_parts {} opt_sub_part {} part_defs
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        ;
3789 3790

part_type_def:
3791 3792 3793 3794 3795 3796
          opt_linear KEY_SYM '(' part_field_list ')'
          {
            LEX *lex= Lex;
            lex->part_info->list_of_part_fields= TRUE;
            lex->part_info->part_type= HASH_PARTITION;
          }
3797
        | opt_linear HASH_SYM
3798 3799
          { Lex->part_info->part_type= HASH_PARTITION; }
          part_func {}
3800
        | RANGE_SYM
3801 3802
          { Lex->part_info->part_type= RANGE_PARTITION; }
          part_func {}
3803
        | LIST_SYM
3804 3805
          { Lex->part_info->part_type= LIST_PARTITION; }
          part_func {}
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3806
        ;
3807 3808

opt_linear:
3809
          /* empty */ {}
3810
        | LINEAR_SYM
3811
          { Lex->part_info->linear_hash_ind= TRUE;}
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3812
        ;
3813 3814

part_field_list:
3815
          /* empty */ {}
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        | part_field_item_list {}
        ;

part_field_item_list:
3820
          part_field_item {}
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3821
        | part_field_item_list ',' part_field_item {}
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        ;
3823 3824

part_field_item:
3825
          ident
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3826
          {
3827 3828 3829 3830 3831
            if (Lex->part_info->part_field_list.push_back($1.str))
            {
              mem_alloc_error(1);
              MYSQL_YYABORT;
            }
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3832
          }
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        ;
3834 3835

part_func:
3836 3837 3838 3839 3840 3841 3842 3843 3844
          '(' remember_name part_func_expr remember_end ')'
          {
            LEX *lex= Lex;
            uint expr_len= (uint)($4 - $2) - 1;
            lex->part_info->list_of_part_fields= FALSE;
            lex->part_info->part_expr= $3;
            lex->part_info->part_func_string= (char* ) sql_memdup($2+1, expr_len);
            lex->part_info->part_func_len= expr_len;
          }
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3845
        ;
3846 3847

sub_part_func:
3848 3849 3850 3851 3852 3853 3854 3855 3856
          '(' remember_name part_func_expr remember_end ')'
          {
            LEX *lex= Lex;
            uint expr_len= (uint)($4 - $2) - 1;
            lex->part_info->list_of_subpart_fields= FALSE;
            lex->part_info->subpart_expr= $3;
            lex->part_info->subpart_func_string= (char* ) sql_memdup($2+1, expr_len);        
            lex->part_info->subpart_func_len= expr_len;
          }
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3857
        ;
3858 3859 3860


opt_no_parts:
3861 3862 3863 3864 3865 3866 3867 3868 3869 3870
          /* empty */ {}
        | PARTITIONS_SYM real_ulong_num
          { 
            uint no_parts= $2;
            LEX *lex= Lex;
            if (no_parts == 0)
            {
              my_error(ER_NO_PARTS_ERROR, MYF(0), "partitions");
              MYSQL_YYABORT;
            }
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3871

3872 3873 3874
            lex->part_info->no_parts= no_parts;
            lex->part_info->use_default_no_partitions= FALSE;
          }
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3875
        ;
3876 3877

opt_sub_part:
3878
          /* empty */ {}
3879
        | SUBPARTITION_SYM BY opt_linear HASH_SYM sub_part_func
3880 3881
          { Lex->part_info->subpart_type= HASH_PARTITION; }
          opt_no_subparts {}
3882 3883
        | SUBPARTITION_SYM BY opt_linear KEY_SYM
          '(' sub_part_field_list ')'
3884 3885 3886 3887 3888 3889
          {
            LEX *lex= Lex;
            lex->part_info->subpart_type= HASH_PARTITION;
            lex->part_info->list_of_subpart_fields= TRUE;
          }
          opt_no_subparts {}
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3890
        ;
3891 3892

sub_part_field_list:
3893
          sub_part_field_item {}
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3894 3895
        | sub_part_field_list ',' sub_part_field_item {}
        ;
3896 3897

sub_part_field_item:
3898
          ident
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3899
          {
3900 3901 3902 3903 3904
            if (Lex->part_info->subpart_field_list.push_back($1.str))
            {
              mem_alloc_error(1);
              MYSQL_YYABORT;
            }
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3905
          }
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3906
        ;
3907 3908

part_func_expr:
3909
          bit_expr
3910
          {
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            LEX *lex= Lex;
            bool not_corr_func;
            not_corr_func= !lex->safe_to_cache_query;
            lex->safe_to_cache_query= 1;
            if (not_corr_func)
            {
              my_parse_error(ER(ER_CONST_EXPR_IN_PARTITION_FUNC_ERROR));
              MYSQL_YYABORT;
            }
            $$=$1;
3921
          }
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3922
        ;
3923 3924

opt_no_subparts:
3925
          /* empty */ {}
3926
        | SUBPARTITIONS_SYM real_ulong_num
3927
          {
3928 3929 3930 3931 3932 3933 3934 3935 3936
            uint no_parts= $2;
            LEX *lex= Lex;
            if (no_parts == 0)
            {
              my_error(ER_NO_PARTS_ERROR, MYF(0), "subpartitions");
              MYSQL_YYABORT;
            }
            lex->part_info->no_subparts= no_parts;
            lex->part_info->use_default_no_subpartitions= FALSE;
3937
          }
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3938
        ;
3939 3940

part_defs:
3941 3942
          /* empty */
          {}
3943 3944
        | '(' part_def_list ')'
          {
3945 3946 3947 3948
            LEX *lex= Lex;
            partition_info *part_info= lex->part_info;
            uint count_curr_parts= part_info->partitions.elements;
            if (part_info->no_parts != 0)
3949
            {
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              if (part_info->no_parts !=
                  count_curr_parts)
              {
                my_parse_error(ER(ER_PARTITION_WRONG_NO_PART_ERROR));
                MYSQL_YYABORT;
              }
3956
            }
3957 3958 3959 3960 3961
            else if (count_curr_parts > 0)
            {
              part_info->no_parts= count_curr_parts;
            }
            part_info->count_curr_subparts= 0;
3962
          }
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3963
        ;
3964 3965

part_def_list:
3966
          part_definition {}
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3967 3968
        | part_def_list ',' part_definition {}
        ;
3969 3970

part_definition:
3971
          PARTITION_SYM
3972
          {
3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986
            LEX *lex= Lex;
            partition_info *part_info= lex->part_info;
            partition_element *p_elem= new partition_element();

            if (!p_elem || part_info->partitions.push_back(p_elem))
            {
              mem_alloc_error(sizeof(partition_element));
              MYSQL_YYABORT;
            }
            p_elem->part_state= PART_NORMAL;
            part_info->curr_part_elem= p_elem;
            part_info->current_partition= p_elem;
            part_info->use_default_partitions= FALSE;
            part_info->use_default_no_partitions= FALSE;
3987
          }
3988 3989 3990 3991
          part_name {}
          opt_part_values {}
          opt_part_options {}
          opt_sub_partition {}
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3992
        ;
3993 3994

part_name:
3995 3996 3997 3998 3999 4000 4001
          ident
          {
            LEX *lex= Lex;
            partition_info *part_info= lex->part_info;
            partition_element *p_elem= part_info->curr_part_elem;
            p_elem->partition_name= $1.str;
          }
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4002
        ;
4003 4004

opt_part_values:
4005
          /* empty */
4006
          {
4007 4008
            LEX *lex= Lex;
            if (! lex->is_partition_management())
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4009
            {
4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021
              if (lex->part_info->part_type == RANGE_PARTITION)
              {
                my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
                         "RANGE", "LESS THAN");
                MYSQL_YYABORT;
              }
              if (lex->part_info->part_type == LIST_PARTITION)
              {
                my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
                         "LIST", "IN");
                MYSQL_YYABORT;
              }
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4022
            }
4023 4024
            else
              lex->part_info->part_type= HASH_PARTITION;
4025 4026 4027
          }
        | VALUES LESS_SYM THAN_SYM part_func_max
          {
4028 4029
            LEX *lex= Lex;
            if (! lex->is_partition_management())
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4030
            {
4031 4032 4033 4034 4035 4036
              if (Lex->part_info->part_type != RANGE_PARTITION)
              {
                my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
                         "RANGE", "LESS THAN");
                MYSQL_YYABORT;
              }
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4037
            }
4038 4039
            else
              lex->part_info->part_type= RANGE_PARTITION;
4040 4041 4042
          }
        | VALUES IN_SYM '(' part_list_func ')'
          {
4043 4044
            LEX *lex= Lex;
            if (! lex->is_partition_management())
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4045
            {
4046 4047 4048 4049 4050 4051
              if (Lex->part_info->part_type != LIST_PARTITION)
              {
                my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
                         "LIST", "IN");
                MYSQL_YYABORT;
              }
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4052
            }
4053 4054
            else
              lex->part_info->part_type= LIST_PARTITION;
4055
          }
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4056
        ;
4057 4058

part_func_max:
4059
          max_value_sym
4060
          {
4061 4062 4063 4064 4065 4066 4067 4068 4069
            LEX *lex= Lex;
            if (lex->part_info->defined_max_value)
            {
              my_parse_error(ER(ER_PARTITION_MAXVALUE_ERROR));
              MYSQL_YYABORT;
            }
            lex->part_info->defined_max_value= TRUE;
            lex->part_info->curr_part_elem->max_value= TRUE;
            lex->part_info->curr_part_elem->range_value= LONGLONG_MAX;
4070 4071
          }
        | part_range_func
4072
          {
4073 4074 4075 4076 4077 4078 4079 4080 4081 4082
            if (Lex->part_info->defined_max_value)
            {
              my_parse_error(ER(ER_PARTITION_MAXVALUE_ERROR));
              MYSQL_YYABORT;
            }
            if (Lex->part_info->curr_part_elem->has_null_value)
            {
              my_parse_error(ER(ER_NULL_IN_VALUES_LESS_THAN));
              MYSQL_YYABORT;
            }
4083
          }
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4084
        ;
4085

4086
max_value_sym:
4087
          MAX_VALUE_SYM
4088 4089 4090
        | '(' MAX_VALUE_SYM ')'
        ;
        
4091
part_range_func:
4092 4093 4094 4095 4096 4097 4098
          '(' part_bit_expr ')' 
          {
            partition_info *part_info= Lex->part_info;
            if (!($2->unsigned_flag))
              part_info->curr_part_elem->signed_flag= TRUE;
            part_info->curr_part_elem->range_value= $2->value;
          }
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4099
        ;
4100 4101

part_list_func:
4102
          part_list_item {}
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4103 4104
        | part_list_func ',' part_list_item {}
        ;
4105 4106

part_list_item:
4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119
          part_bit_expr
          {
            part_elem_value *value_ptr= $1;
            partition_info *part_info= Lex->part_info;
            if (!value_ptr->unsigned_flag)
              part_info->curr_part_elem->signed_flag= TRUE;
            if (!value_ptr->null_value &&
               part_info->curr_part_elem->
                list_val_list.push_back(value_ptr))
            {
              mem_alloc_error(sizeof(part_elem_value));
              MYSQL_YYABORT;
            }
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4120
          }
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4121
        ;
4122 4123

part_bit_expr:
4124
          bit_expr
4125
          {
4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138
            Item *part_expr= $1;
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Name_resolution_context *context= &lex->current_select->context;
            TABLE_LIST *save_list= context->table_list;
            const char *save_where= thd->where;

            context->table_list= 0;
            thd->where= "partition function";

            part_elem_value *value_ptr= 
              (part_elem_value*)sql_alloc(sizeof(part_elem_value));
            if (!value_ptr)
4139
            {
4140
              mem_alloc_error(sizeof(part_elem_value));
4141
              MYSQL_YYABORT;
4142
            }
4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177
            if (part_expr->walk(&Item::check_partition_func_processor, 0,
                                NULL))
            {
              my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
              MYSQL_YYABORT;
            }
            if (part_expr->fix_fields(YYTHD, (Item**)0) ||
                ((context->table_list= save_list), FALSE) ||
                (!part_expr->const_item()) ||
                (!lex->safe_to_cache_query))
            {
              my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
              MYSQL_YYABORT;
            }
            thd->where= save_where;
            value_ptr->value= part_expr->val_int();
            value_ptr->unsigned_flag= TRUE;
            if (!part_expr->unsigned_flag &&
                value_ptr->value < 0)
              value_ptr->unsigned_flag= FALSE;
            if ((value_ptr->null_value= part_expr->null_value))
            {
              if (Lex->part_info->curr_part_elem->has_null_value)
              {
                my_error(ER_MULTIPLE_DEF_CONST_IN_LIST_PART_ERROR, MYF(0));
                MYSQL_YYABORT;
              }
              Lex->part_info->curr_part_elem->has_null_value= TRUE;
            }
            else if (part_expr->result_type() != INT_RESULT)
            {
              my_parse_error(ER(ER_INCONSISTENT_TYPE_OF_FUNCTIONS_ERROR));
              MYSQL_YYABORT;
            }
            $$= value_ptr; 
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4178
          }
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4179
        ;
4180 4181

opt_sub_partition:
4182
          /* empty */
4183
          {
4184 4185
            if (Lex->part_info->no_subparts != 0 &&
                !Lex->part_info->use_default_subpartitions)
4186
            {
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4187
              my_parse_error(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
4188
              MYSQL_YYABORT;
4189 4190
            }
          }
4191
        | '(' sub_part_list ')'
4192
          {
4193 4194 4195
            LEX *lex= Lex;
            partition_info *part_info= lex->part_info;
            if (part_info->no_subparts != 0)
4196
            {
4197 4198 4199 4200 4201 4202
              if (part_info->no_subparts !=
                  part_info->count_curr_subparts)
              {
                my_parse_error(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
                MYSQL_YYABORT;
              }
4203
            }
4204 4205 4206 4207 4208 4209 4210 4211 4212 4213
            else if (part_info->count_curr_subparts > 0)
            {
              if (part_info->partitions.elements > 1)
              {
                my_parse_error(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
                MYSQL_YYABORT;
              }
              part_info->no_subparts= part_info->count_curr_subparts;
            }
            part_info->count_curr_subparts= 0;
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          }
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        ;
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sub_part_list:
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          sub_part_definition {}
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        | sub_part_list ',' sub_part_definition {}
        ;
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sub_part_definition:
4223
          SUBPARTITION_SYM
4224
          {
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            LEX *lex= Lex;
            partition_info *part_info= lex->part_info;
            partition_element *curr_part= part_info->current_partition;
            partition_element *sub_p_elem= new partition_element(curr_part);
            if (!sub_p_elem ||
             curr_part->subpartitions.push_back(sub_p_elem))
            {
              mem_alloc_error(sizeof(partition_element));
              MYSQL_YYABORT;
            }
            part_info->curr_part_elem= sub_p_elem;
            part_info->use_default_subpartitions= FALSE;
            part_info->use_default_no_subpartitions= FALSE;
            part_info->count_curr_subparts++;
4239
          }
4240
          sub_name opt_part_options {}
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        ;
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sub_name:
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          ident_or_text
          { Lex->part_info->curr_part_elem->partition_name= $1.str; }
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        ;
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opt_part_options:
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         /* empty */ {}
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       | opt_part_option_list {}
       ;
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opt_part_option_list:
4254
         opt_part_option_list opt_part_option {}
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       | opt_part_option {}
       ;
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opt_part_option:
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          TABLESPACE opt_equal ident_or_text
          { Lex->part_info->curr_part_elem->tablespace_name= $3.str; }
4261
        | opt_storage ENGINE_SYM opt_equal storage_engines
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          {
            LEX *lex= Lex;
            lex->part_info->curr_part_elem->engine_type= $4;
            lex->part_info->default_engine_type= $4;
          }
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        | NODEGROUP_SYM opt_equal real_ulong_num
4268
          { Lex->part_info->curr_part_elem->nodegroup_id= (uint16) $3; }
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        | MAX_ROWS opt_equal real_ulonglong_num
4270
          { Lex->part_info->curr_part_elem->part_max_rows= (ha_rows) $3; }
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        | MIN_ROWS opt_equal real_ulonglong_num
4272
          { Lex->part_info->curr_part_elem->part_min_rows= (ha_rows) $3; }
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        | DATA_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
4274
          { Lex->part_info->curr_part_elem->data_file_name= $4.str; }
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        | INDEX_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
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          { Lex->part_info->curr_part_elem->index_file_name= $4.str; }
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        | COMMENT_SYM opt_equal TEXT_STRING_sys
4278
          { Lex->part_info->curr_part_elem->part_comment= $3.str; }
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        ;
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/*
 End of partition parser part
*/

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create_select:
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          SELECT_SYM
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          {
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            LEX *lex=Lex;
            lex->lock_option= using_update_log ? TL_READ_NO_INSERT : TL_READ;
            if (lex->sql_command == SQLCOM_INSERT)
              lex->sql_command= SQLCOM_INSERT_SELECT;
            else if (lex->sql_command == SQLCOM_REPLACE)
              lex->sql_command= SQLCOM_REPLACE_SELECT;
            /*
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              The following work only with the local list, the global list
              is created correctly in this case
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            */
            lex->current_select->table_list.save_and_clear(&lex->save_list);
            mysql_init_select(lex);
            lex->current_select->parsing_place= SELECT_LIST;
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          }
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          select_options select_item_list
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          {
            Select->parsing_place= NO_MATTER;
          }
          opt_select_from
          {
            /*
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              The following work only with the local list, the global list
              is created correctly in this case
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            */
            Lex->current_select->table_list.push_front(&Lex->save_list);
          }
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        ;
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opt_as:
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          /* empty */ {}
        | AS {}
        ;
4320

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opt_create_database_options:
4322 4323 4324
          /* empty */ {}
        | create_database_options {}
        ;
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create_database_options:
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          create_database_option {}
        | create_database_options create_database_option {}
        ;
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create_database_option:
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          default_collation {}
        | default_charset {}
        ;
4335

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opt_table_options:
4337 4338 4339
          /* empty */ { $$= 0; }
        | table_options  { $$= $1;}
        ;
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table_options:
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          table_option { $$=$1; }
        | table_option table_options { $$= $1 | $2; }
        ;
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table_option:
4347 4348
          TEMPORARY { $$=HA_LEX_CREATE_TMP_TABLE; }
        ;
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opt_if_not_exists:
4351 4352 4353
          /* empty */ { $$= 0; }
        | IF not EXISTS { $$=HA_LEX_CREATE_IF_NOT_EXISTS; }
        ;
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opt_create_table_options:
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          /* empty */
        | create_table_options
        ;
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create_table_options_space_separated:
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          create_table_option
        | create_table_option create_table_options_space_separated
        ;
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create_table_options:
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          create_table_option
        | create_table_option     create_table_options
        | create_table_option ',' create_table_options
        ;
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create_table_option:
4372 4373 4374 4375 4376 4377
          ENGINE_SYM opt_equal storage_engines
          {
            Lex->create_info.db_type= $3;
            Lex->create_info.used_fields|= HA_CREATE_USED_ENGINE;
          }
        | TYPE_SYM opt_equal storage_engines
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          {
            Lex->create_info.db_type= $3;
            WARN_DEPRECATED(yythd, "5.2", "TYPE=storage_engine",
                            "'ENGINE=storage_engine'");
            Lex->create_info.used_fields|= HA_CREATE_USED_ENGINE;
          }
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        | MAX_ROWS opt_equal ulonglong_num
          {
            Lex->create_info.max_rows= $3;
            Lex->create_info.used_fields|= HA_CREATE_USED_MAX_ROWS;
          }
        | MIN_ROWS opt_equal ulonglong_num
          {
            Lex->create_info.min_rows= $3;
            Lex->create_info.used_fields|= HA_CREATE_USED_MIN_ROWS;
          }
        | AVG_ROW_LENGTH opt_equal ulong_num
          {
            Lex->create_info.avg_row_length=$3;
            Lex->create_info.used_fields|= HA_CREATE_USED_AVG_ROW_LENGTH;
          }
        | PASSWORD opt_equal TEXT_STRING_sys
          {
            Lex->create_info.password=$3.str;
            Lex->create_info.used_fields|= HA_CREATE_USED_PASSWORD;
          }
        | COMMENT_SYM opt_equal TEXT_STRING_sys
          {
            Lex->create_info.comment=$3;
            Lex->create_info.used_fields|= HA_CREATE_USED_COMMENT;
          }
        | AUTO_INC opt_equal ulonglong_num
          {
            Lex->create_info.auto_increment_value=$3;
            Lex->create_info.used_fields|= HA_CREATE_USED_AUTO;
          }
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        | PACK_KEYS_SYM opt_equal ulong_num
          {
            switch($3) {
            case 0:
                Lex->create_info.table_options|= HA_OPTION_NO_PACK_KEYS;
                break;
            case 1:
                Lex->create_info.table_options|= HA_OPTION_PACK_KEYS;
                break;
            default:
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                my_parse_error(ER(ER_SYNTAX_ERROR));
                MYSQL_YYABORT;
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            }
            Lex->create_info.used_fields|= HA_CREATE_USED_PACK_KEYS;
          }
        | PACK_KEYS_SYM opt_equal DEFAULT
          {
            Lex->create_info.table_options&=
              ~(HA_OPTION_PACK_KEYS | HA_OPTION_NO_PACK_KEYS);
            Lex->create_info.used_fields|= HA_CREATE_USED_PACK_KEYS;
          }
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        | CHECKSUM_SYM opt_equal ulong_num
          {
            Lex->create_info.table_options|= $3 ? HA_OPTION_CHECKSUM : HA_OPTION_NO_CHECKSUM;
            Lex->create_info.used_fields|= HA_CREATE_USED_CHECKSUM;
          }
        | DELAY_KEY_WRITE_SYM opt_equal ulong_num
          {
            Lex->create_info.table_options|= $3 ? HA_OPTION_DELAY_KEY_WRITE : HA_OPTION_NO_DELAY_KEY_WRITE;
            Lex->create_info.used_fields|= HA_CREATE_USED_DELAY_KEY_WRITE;
          }
        | ROW_FORMAT_SYM opt_equal row_types
          {
            Lex->create_info.row_type= $3;
            Lex->create_info.used_fields|= HA_CREATE_USED_ROW_FORMAT;
          }
        | UNION_SYM opt_equal '(' table_list ')'
          {
            /* Move the union list to the merge_list */
            LEX *lex=Lex;
            TABLE_LIST *table_list= lex->select_lex.get_table_list();
            lex->create_info.merge_list= lex->select_lex.table_list;
            lex->create_info.merge_list.elements--;
            lex->create_info.merge_list.first=
              (uchar*) (table_list->next_local);
            lex->select_lex.table_list.elements=1;
            lex->select_lex.table_list.next=
              (uchar**) &(table_list->next_local);
            table_list->next_local= 0;
            lex->create_info.used_fields|= HA_CREATE_USED_UNION;
          }
        | default_charset
        | default_collation
        | INSERT_METHOD opt_equal merge_insert_types
          {
            Lex->create_info.merge_insert_method= $3;
            Lex->create_info.used_fields|= HA_CREATE_USED_INSERT_METHOD;
          }
        | DATA_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
          {
            Lex->create_info.data_file_name= $4.str;
            Lex->create_info.used_fields|= HA_CREATE_USED_DATADIR;
          }
        | INDEX_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
          {
            Lex->create_info.index_file_name= $4.str;
            Lex->create_info.used_fields|= HA_CREATE_USED_INDEXDIR;
          }
        | TABLESPACE ident
          {Lex->create_info.tablespace= $2.str;}
        | STORAGE_SYM DISK_SYM
          {Lex->create_info.storage_media= HA_SM_DISK;}
        | STORAGE_SYM MEMORY_SYM
          {Lex->create_info.storage_media= HA_SM_MEMORY;}
        | CONNECTION_SYM opt_equal TEXT_STRING_sys
          {
            Lex->create_info.connect_string.str= $3.str;
            Lex->create_info.connect_string.length= $3.length;
            Lex->create_info.used_fields|= HA_CREATE_USED_CONNECTION;
          }
        | KEY_BLOCK_SIZE opt_equal ulong_num
          {
            Lex->create_info.used_fields|= HA_CREATE_USED_KEY_BLOCK_SIZE;
            Lex->create_info.key_block_size= $3;
          }
4499
        ;
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4501
default_charset:
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          opt_default charset opt_equal charset_name_or_default
          {
            HA_CREATE_INFO *cinfo= &Lex->create_info;
            if ((cinfo->used_fields & HA_CREATE_USED_DEFAULT_CHARSET) &&
                 cinfo->default_table_charset && $4 &&
                 !my_charset_same(cinfo->default_table_charset,$4))
4508
            {
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              my_error(ER_CONFLICTING_DECLARATIONS, MYF(0),
                       "CHARACTER SET ", cinfo->default_table_charset->csname,
                       "CHARACTER SET ", $4->csname);
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              MYSQL_YYABORT;
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            }
            Lex->create_info.default_table_charset= $4;
            Lex->create_info.used_fields|= HA_CREATE_USED_DEFAULT_CHARSET;
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          }
        ;
4518

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default_collation:
          opt_default COLLATE_SYM opt_equal collation_name_or_default
          {
            HA_CREATE_INFO *cinfo= &Lex->create_info;
            if ((cinfo->used_fields & HA_CREATE_USED_DEFAULT_CHARSET) &&
                 cinfo->default_table_charset && $4 &&
                 !my_charset_same(cinfo->default_table_charset,$4))
              {
                my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                         $4->name, cinfo->default_table_charset->csname);
                MYSQL_YYABORT;
              }
              Lex->create_info.default_table_charset= $4;
              Lex->create_info.used_fields|= HA_CREATE_USED_DEFAULT_CHARSET;
          }
        ;
4535

4536 4537
storage_engines:
          ident_or_text
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4538
          {
4539 4540 4541 4542 4543
            plugin_ref plugin= ha_resolve_by_name(YYTHD, &$1);

            if (plugin)
              $$= plugin_data(plugin, handlerton*);
            else
4544
            {
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              if (YYTHD->variables.sql_mode & MODE_NO_ENGINE_SUBSTITUTION)
              {
                my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), $1.str);
                MYSQL_YYABORT;
              }
              $$= 0;
              push_warning_printf(YYTHD, MYSQL_ERROR::WARN_LEVEL_WARN,
                                  ER_UNKNOWN_STORAGE_ENGINE,
                                  ER(ER_UNKNOWN_STORAGE_ENGINE),
                                  $1.str);
4555
            }
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          }
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        ;
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4558

4559
known_storage_engines:
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          ident_or_text
          {
            plugin_ref plugin;
            if ((plugin= ha_resolve_by_name(YYTHD, &$1)))
              $$= plugin_data(plugin, handlerton*);
            else
            {
              my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
          }
4571
        ;
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row_types:
4574 4575 4576 4577 4578 4579 4580
          DEFAULT        { $$= ROW_TYPE_DEFAULT; }
        | FIXED_SYM      { $$= ROW_TYPE_FIXED; }
        | DYNAMIC_SYM    { $$= ROW_TYPE_DYNAMIC; }
        | COMPRESSED_SYM { $$= ROW_TYPE_COMPRESSED; }
        | REDUNDANT_SYM  { $$= ROW_TYPE_REDUNDANT; }
        | COMPACT_SYM    { $$= ROW_TYPE_COMPACT; }
        ;
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4582
merge_insert_types:
4583
         NO_SYM          { $$= MERGE_INSERT_DISABLED; }
4584
       | FIRST_SYM       { $$= MERGE_INSERT_TO_FIRST; }
4585 4586
       | LAST_SYM        { $$= MERGE_INSERT_TO_LAST; }
       ;
4587

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opt_select_from:
4589 4590 4591
          opt_limit_clause {}
        | select_from select_lock_type
        ;
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udf_func_type:
4594 4595
          /* empty */ { $$ = UDFTYPE_FUNCTION; }
        | AGGREGATE_SYM { $$ = UDFTYPE_AGGREGATE; };
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udf_type:
4598 4599
          STRING_SYM {$$ = (int) STRING_RESULT; }
        | REAL {$$ = (int) REAL_RESULT; }
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        | DECIMAL_SYM {$$ = (int) DECIMAL_RESULT; }
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        | INT_SYM {$$ = (int) INT_RESULT; }
        ;
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field_list:
4605 4606 4607
          field_list_item
        | field_list ',' field_list_item
        ;
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field_list_item:
4610 4611 4612
          column_def
        | key_def
        ;
4613 4614

column_def:
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          field_spec opt_check_constraint
        | field_spec references
          {
            Lex->col_list.empty(); /* Alloced by sql_alloc */
          }
        ;
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key_def:
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          key_type opt_ident key_alg '(' key_list ')' key_options
          {
            LEX *lex=Lex;
            if ($1 != Key::FULLTEXT && lex->key_create_info.parser_name.str)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
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            Key *key= new Key($1, $2, &lex->key_create_info, 0,
                              lex->col_list);
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            lex->alter_info.key_list.push_back(key);
            lex->col_list.empty(); /* Alloced by sql_alloc */
          }
        | opt_constraint constraint_key_type opt_ident key_alg
          '(' key_list ')' key_options
          {
            LEX *lex=Lex;
            const char *key_name= $3 ? $3 : $1;
4641 4642
            Key *key= new Key($2, key_name, &lex->key_create_info, 0,
                              lex->col_list);
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            lex->alter_info.key_list.push_back(key);
            lex->col_list.empty(); /* Alloced by sql_alloc */
          }
        | opt_constraint FOREIGN KEY_SYM opt_ident '(' key_list ')' references
          {
            LEX *lex=Lex;
4649
            const char *key_name= $4 ? $4 : $1;
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            Key *key= new Foreign_key(key_name, lex->col_list,
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                                      $8,
                                      lex->ref_list,
                                      lex->fk_delete_opt,
                                      lex->fk_update_opt,
                                      lex->fk_match_option);
            lex->alter_info.key_list.push_back(key);
            key= new Key(Key::MULTIPLE, key_name,
                         &default_key_create_info, 1,
                         lex->col_list);
            lex->alter_info.key_list.push_back(key);
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            lex->col_list.empty(); /* Alloced by sql_alloc */
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            /* Only used for ALTER TABLE. Ignored otherwise. */
            lex->alter_info.flags|= ALTER_FOREIGN_KEY;
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          }
        | constraint opt_check_constraint
          {
            Lex->col_list.empty(); /* Alloced by sql_alloc */
          }
        | opt_constraint check_constraint
          {
            Lex->col_list.empty(); /* Alloced by sql_alloc */
          }
        ;
4674

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opt_check_constraint:
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          /* empty */
        | check_constraint
        ;
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check_constraint:
4681 4682
          CHECK_SYM expr
        ;
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opt_constraint:
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          /* empty */ { $$=(char*) 0; }
        | constraint { $$= $1; }
        ;
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constraint:
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          CONSTRAINT opt_ident { $$=$2; }
        ;
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field_spec:
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          field_ident
          {
            LEX *lex=Lex;
            lex->length=lex->dec=0;
            lex->type=0;
            lex->default_value= lex->on_update_value= 0;
            lex->comment=null_lex_str;
            lex->charset=NULL;
          }
          type opt_attribute
          {
            LEX *lex=Lex;
            if (add_field_to_list(lex->thd, &$1, (enum enum_field_types) $3,
                                  lex->length,lex->dec,lex->type,
                                  lex->default_value, lex->on_update_value, 
                                  &lex->comment,
                                  lex->change,&lex->interval_list,lex->charset,
                                  lex->uint_geom_type))
              MYSQL_YYABORT;
          }
        ;
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type:
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          int_type opt_len field_options { $$=$1; }
        | real_type opt_precision field_options { $$=$1; }
        | FLOAT_SYM float_options field_options { $$=MYSQL_TYPE_FLOAT; }
        | BIT_SYM
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          {
4722 4723
            Lex->length= (char*) "1";
            $$=MYSQL_TYPE_BIT;
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          }
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        | BIT_SYM '(' NUM ')'
          {
            Lex->length= $3.str;
            $$=MYSQL_TYPE_BIT;
          }
        | BOOL_SYM
          {
            Lex->length=(char*) "1";
            $$=MYSQL_TYPE_TINY;
          }
        | BOOLEAN_SYM
          {
            Lex->length=(char*) "1";
            $$=MYSQL_TYPE_TINY;
          }
        | char '(' NUM ')' opt_binary
          {
            Lex->length=$3.str;
            $$=MYSQL_TYPE_STRING;
          }
        | char opt_binary
          {
            Lex->length=(char*) "1";
            $$=MYSQL_TYPE_STRING;
          }
        | nchar '(' NUM ')' opt_bin_mod
          {
            Lex->length=$3.str;
            $$=MYSQL_TYPE_STRING;
            Lex->charset=national_charset_info;
          }
        | nchar opt_bin_mod
          {
            Lex->length=(char*) "1";
            $$=MYSQL_TYPE_STRING;
            Lex->charset=national_charset_info;
          }
        | BINARY '(' NUM ')'
          {
            Lex->length=$3.str;
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_STRING;
          }
        | BINARY
          {
            Lex->length= (char*) "1";
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_STRING;
          }
        | varchar '(' NUM ')' opt_binary
          {
            Lex->length=$3.str;
            $$= MYSQL_TYPE_VARCHAR;
          }
        | nvarchar '(' NUM ')' opt_bin_mod
          {
            Lex->length=$3.str;
            $$= MYSQL_TYPE_VARCHAR;
            Lex->charset=national_charset_info;
          }
        | VARBINARY '(' NUM ')'
          {
            Lex->length=$3.str;
            Lex->charset=&my_charset_bin;
            $$= MYSQL_TYPE_VARCHAR;
          }
        | YEAR_SYM opt_len field_options
          { $$=MYSQL_TYPE_YEAR; }
        | DATE_SYM
          { $$=MYSQL_TYPE_DATE; }
        | TIME_SYM
          { $$=MYSQL_TYPE_TIME; }
        | TIMESTAMP opt_len
          {
            if (YYTHD->variables.sql_mode & MODE_MAXDB)
              $$=MYSQL_TYPE_DATETIME;
            else
            {
              /* 
                Unlike other types TIMESTAMP fields are NOT NULL by default.
              */
              Lex->type|= NOT_NULL_FLAG;
              $$=MYSQL_TYPE_TIMESTAMP;
            }
          }
        | DATETIME
          { $$=MYSQL_TYPE_DATETIME; }
        | TINYBLOB
          {
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_TINY_BLOB;
          }
        | BLOB_SYM opt_len
          {
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_BLOB;
          }
        | spatial_type
          {
#ifdef HAVE_SPATIAL
            Lex->charset=&my_charset_bin;
            Lex->uint_geom_type= (uint)$1;
            $$=MYSQL_TYPE_GEOMETRY;
#else
            my_error(ER_FEATURE_DISABLED, MYF(0),
                     sym_group_geom.name, sym_group_geom.needed_define);
            MYSQL_YYABORT;
#endif
          }
        | MEDIUMBLOB
          {
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_MEDIUM_BLOB;
          }
        | LONGBLOB
          {
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_LONG_BLOB;
          }
        | LONG_SYM VARBINARY
          {
            Lex->charset=&my_charset_bin;
            $$=MYSQL_TYPE_MEDIUM_BLOB;
          }
        | LONG_SYM varchar opt_binary
          { $$=MYSQL_TYPE_MEDIUM_BLOB; }
        | TINYTEXT opt_binary
          { $$=MYSQL_TYPE_TINY_BLOB; }
        | TEXT_SYM opt_len opt_binary
          { $$=MYSQL_TYPE_BLOB; }
        | MEDIUMTEXT opt_binary
          { $$=MYSQL_TYPE_MEDIUM_BLOB; }
        | LONGTEXT opt_binary
          { $$=MYSQL_TYPE_LONG_BLOB; }
        | DECIMAL_SYM float_options field_options
          { $$=MYSQL_TYPE_NEWDECIMAL;}
        | NUMERIC_SYM float_options field_options
          { $$=MYSQL_TYPE_NEWDECIMAL;}
        | FIXED_SYM float_options field_options
          { $$=MYSQL_TYPE_NEWDECIMAL;}
        | ENUM
          {Lex->interval_list.empty();}
          '(' string_list ')' opt_binary
          { $$=MYSQL_TYPE_ENUM; }
        | SET
          { Lex->interval_list.empty();}
          '(' string_list ')' opt_binary
          { $$=MYSQL_TYPE_SET; }
        | LONG_SYM opt_binary
          { $$=MYSQL_TYPE_MEDIUM_BLOB; }
        | SERIAL_SYM
          {
            $$=MYSQL_TYPE_LONGLONG;
            Lex->type|= (AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNSIGNED_FLAG |
              UNIQUE_FLAG);
          }
        ;

spatial_type:
          GEOMETRY_SYM        { $$= Field::GEOM_GEOMETRY; }
        | GEOMETRYCOLLECTION  { $$= Field::GEOM_GEOMETRYCOLLECTION; }
        | POINT_SYM
          {
            Lex->length= (char*)"21";
            $$= Field::GEOM_POINT;
          }
        | MULTIPOINT          { $$= Field::GEOM_MULTIPOINT; }
        | LINESTRING          { $$= Field::GEOM_LINESTRING; }
        | MULTILINESTRING     { $$= Field::GEOM_MULTILINESTRING; }
        | POLYGON             { $$= Field::GEOM_POLYGON; }
        | MULTIPOLYGON        { $$= Field::GEOM_MULTIPOLYGON; }
        ;

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char:
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          CHAR_SYM {}
        ;
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nchar:
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          NCHAR_SYM {}
        | NATIONAL_SYM CHAR_SYM {}
        ;
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varchar:
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          char VARYING {}
        | VARCHAR {}
        ;
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nvarchar:
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          NATIONAL_SYM VARCHAR {}
        | NVARCHAR_SYM {}
        | NCHAR_SYM VARCHAR {}
        | NATIONAL_SYM CHAR_SYM VARYING {}
        | NCHAR_SYM VARYING {}
        ;
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int_type:
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          INT_SYM   { $$=MYSQL_TYPE_LONG; }
        | TINYINT   { $$=MYSQL_TYPE_TINY; }
        | SMALLINT  { $$=MYSQL_TYPE_SHORT; }
        | MEDIUMINT { $$=MYSQL_TYPE_INT24; }
        | BIGINT    { $$=MYSQL_TYPE_LONGLONG; }
        ;
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real_type:
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          REAL
          {
            $$= YYTHD->variables.sql_mode & MODE_REAL_AS_FLOAT ?
              MYSQL_TYPE_FLOAT : MYSQL_TYPE_DOUBLE;
          }
        | DOUBLE_SYM
          { $$=MYSQL_TYPE_DOUBLE; }
        | DOUBLE_SYM PRECISION
          { $$=MYSQL_TYPE_DOUBLE; }
        ;
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float_options:
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          /* empty */
          { Lex->dec=Lex->length= (char*)0; }
        | '(' NUM ')'
          { Lex->length=$2.str; Lex->dec= (char*)0; }
        | precision
          {}
        ;
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precision:
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          '(' NUM ',' NUM ')'
          {
            LEX *lex=Lex;
            lex->length=$2.str;
            lex->dec=$4.str;
          }
        ;
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field_options:
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          /* empty */ {}
        | field_opt_list {}
        ;
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field_opt_list:
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          field_opt_list field_option {}
        | field_option {}
        ;
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field_option:
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          SIGNED_SYM {}
        | UNSIGNED { Lex->type|= UNSIGNED_FLAG;}
        | ZEROFILL { Lex->type|= UNSIGNED_FLAG | ZEROFILL_FLAG; }
        ;
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opt_len:
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          /* empty */ { Lex->length=(char*) 0; /* use default length */ }
        | '(' NUM ')' { Lex->length= $2.str; }
        ;
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opt_precision:
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          /* empty */ {}
        | precision {}
        ;
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opt_attribute:
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          /* empty */ {}
        | opt_attribute_list {}
        ;
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opt_attribute_list:
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          opt_attribute_list attribute {}
        | attribute
        ;
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attribute:
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          NULL_SYM { Lex->type&= ~ NOT_NULL_FLAG; }
        | not NULL_SYM { Lex->type|= NOT_NULL_FLAG; }
        | DEFAULT now_or_signed_literal { Lex->default_value=$2; }
        | ON UPDATE_SYM NOW_SYM optional_braces
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          { Lex->on_update_value= new Item_func_now_local(); }
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        | AUTO_INC { Lex->type|= AUTO_INCREMENT_FLAG | NOT_NULL_FLAG; }
        | SERIAL_SYM DEFAULT VALUE_SYM
          { 
            LEX *lex=Lex;
            lex->type|= AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNIQUE_FLAG;
            lex->alter_info.flags|= ALTER_ADD_INDEX;
          }
        | opt_primary KEY_SYM
          {
            LEX *lex=Lex;
            lex->type|= PRI_KEY_FLAG | NOT_NULL_FLAG;
            lex->alter_info.flags|= ALTER_ADD_INDEX;
          }
        | UNIQUE_SYM
          {
            LEX *lex=Lex;
            lex->type|= UNIQUE_FLAG; 
            lex->alter_info.flags|= ALTER_ADD_INDEX;
          }
        | UNIQUE_SYM KEY_SYM
          {
            LEX *lex=Lex;
            lex->type|= UNIQUE_KEY_FLAG; 
            lex->alter_info.flags|= ALTER_ADD_INDEX; 
          }
        | COMMENT_SYM TEXT_STRING_sys { Lex->comment= $2; }
        | COLLATE_SYM collation_name
          {
            if (Lex->charset && !my_charset_same(Lex->charset,$2))
            {
              my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
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                       $2->name,Lex->charset->csname);
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              MYSQL_YYABORT;
            }
            else
            {
              Lex->charset=$2;
            }
          }
        ;
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now_or_signed_literal:
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          NOW_SYM optional_braces
          { $$= new Item_func_now_local(); }
        | signed_literal
          { $$=$1; }
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        ;

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charset:
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          CHAR_SYM SET {}
        | CHARSET {}
        ;
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charset_name:
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          ident_or_text
          {
            if (!($$=get_charset_by_csname($1.str,MY_CS_PRIMARY,MYF(0))))
            {
              my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
          }
        | BINARY { $$= &my_charset_bin; }
        ;
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charset_name_or_default:
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          charset_name { $$=$1;   }
        | DEFAULT    { $$=NULL; }
        ;
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opt_load_data_charset:
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          /* Empty */ { $$= NULL; }
        | charset charset_name_or_default { $$= $2; }
        ;
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old_or_new_charset_name:
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          ident_or_text
          {
            if (!($$=get_charset_by_csname($1.str,MY_CS_PRIMARY,MYF(0))) &&
                !($$=get_old_charset_by_name($1.str)))
            {
              my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
          }
        | BINARY { $$= &my_charset_bin; }
        ;
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old_or_new_charset_name_or_default:
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          old_or_new_charset_name { $$=$1;   }
        | DEFAULT    { $$=NULL; }
        ;
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collation_name:
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          ident_or_text
          {
            if (!($$=get_charset_by_name($1.str,MYF(0))))
            {
              my_error(ER_UNKNOWN_COLLATION, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
          }
        ;
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opt_collate:
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          /* empty */ { $$=NULL; }
        | COLLATE_SYM collation_name_or_default { $$=$2; }
        ;
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collation_name_or_default:
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          collation_name { $$=$1; }
        | DEFAULT    { $$=NULL; }
        ;
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opt_default:
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          /* empty */ {}
        | DEFAULT {}
        ;
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opt_binary:
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          /* empty */ { Lex->charset=NULL; }
        | ASCII_SYM opt_bin_mod { Lex->charset=&my_charset_latin1; }
        | BYTE_SYM { Lex->charset=&my_charset_bin; }
        | UNICODE_SYM opt_bin_mod
          {
            if (!(Lex->charset=get_charset_by_csname("ucs2",
                                                     MY_CS_PRIMARY,MYF(0))))
            {
              my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), "ucs2");
              MYSQL_YYABORT;
            }
          }
        | charset charset_name opt_bin_mod { Lex->charset=$2; }
        | BINARY opt_bin_charset { Lex->type|= BINCMP_FLAG; }
        ;
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opt_bin_mod:
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          /* empty */ { }
        | BINARY { Lex->type|= BINCMP_FLAG; }
        ;
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opt_bin_charset:
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          /* empty */ { Lex->charset= NULL; }
        | ASCII_SYM { Lex->charset=&my_charset_latin1; }
        | UNICODE_SYM
          {
            if (!(Lex->charset=get_charset_by_csname("ucs2",
                                                     MY_CS_PRIMARY,MYF(0))))
            {
              my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), "ucs2");
              MYSQL_YYABORT;
            }
          }
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        | charset charset_name { Lex->charset=$2; }
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        ;
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opt_primary:
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          /* empty */
        | PRIMARY_SYM
        ;
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references:
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          REFERENCES table_ident
          {
            LEX *lex=Lex;
            lex->fk_delete_opt= lex->fk_update_opt= lex->fk_match_option= 0;
            lex->ref_list.empty();
          }
          opt_ref_list
          {
            $$=$2;
          }
        ;
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opt_ref_list:
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          /* empty */ opt_on_delete {}
        | '(' ref_list ')' opt_on_delete {}
        ;
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ref_list:
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          ref_list ',' ident { Lex->ref_list.push_back(new Key_part_spec($3.str)); }
        | ident { Lex->ref_list.push_back(new Key_part_spec($1.str)); }
        ;
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opt_on_delete:
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          /* empty */ {}
        | opt_on_delete_list {}
        ;
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opt_on_delete_list:
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          opt_on_delete_list opt_on_delete_item {}
        | opt_on_delete_item {}
        ;
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opt_on_delete_item:
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          ON DELETE_SYM delete_option { Lex->fk_delete_opt= $3; }
        | ON UPDATE_SYM delete_option { Lex->fk_update_opt= $3; }
        | MATCH FULL       { Lex->fk_match_option= Foreign_key::FK_MATCH_FULL; }
        | MATCH PARTIAL    { Lex->fk_match_option= Foreign_key::FK_MATCH_PARTIAL; }
        | MATCH SIMPLE_SYM { Lex->fk_match_option= Foreign_key::FK_MATCH_SIMPLE; }
        ;
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delete_option:
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          RESTRICT      { $$= (int) Foreign_key::FK_OPTION_RESTRICT; }
        | CASCADE       { $$= (int) Foreign_key::FK_OPTION_CASCADE; }
        | SET NULL_SYM  { $$= (int) Foreign_key::FK_OPTION_SET_NULL; }
        | NO_SYM ACTION { $$= (int) Foreign_key::FK_OPTION_NO_ACTION; }
        | SET DEFAULT   { $$= (int) Foreign_key::FK_OPTION_DEFAULT;  }
        ;
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key_type:
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          key_or_index { $$= Key::MULTIPLE; }
        | FULLTEXT_SYM opt_key_or_index { $$= Key::FULLTEXT; }
        | SPATIAL_SYM opt_key_or_index
          {
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#ifdef HAVE_SPATIAL
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            $$= Key::SPATIAL;
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#else
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            my_error(ER_FEATURE_DISABLED, MYF(0),
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                     sym_group_geom.name, sym_group_geom.needed_define);
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            MYSQL_YYABORT;
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#endif
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          }
        ;
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constraint_key_type:
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          PRIMARY_SYM KEY_SYM { $$= Key::PRIMARY; }
        | UNIQUE_SYM opt_key_or_index { $$= Key::UNIQUE; }
        ;
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key_or_index:
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          KEY_SYM {}
        | INDEX_SYM {}
        ;
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opt_key_or_index:
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          /* empty */ {}
        | key_or_index
        ;
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keys_or_index:
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          KEYS {}
        | INDEX_SYM {}
        | INDEXES {}
        ;
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5246
opt_unique_or_fulltext:
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          /* empty */  { $$= Key::MULTIPLE; }
        | UNIQUE_SYM   { $$= Key::UNIQUE; }
        | FULLTEXT_SYM { $$= Key::FULLTEXT;}
        | SPATIAL_SYM
          {
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#ifdef HAVE_SPATIAL
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            $$= Key::SPATIAL;
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#else
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            my_error(ER_FEATURE_DISABLED, MYF(0),
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                     sym_group_geom.name, sym_group_geom.needed_define);
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            MYSQL_YYABORT;
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#endif
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          }
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        ;
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5262
init_key_options:
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          {
            Lex->key_create_info= default_key_create_info;
          }
        ;
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/*
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  For now, key_alg initializies lex->key_create_info.
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  In the future, when all key options are after key definition,
  we can remove key_alg and move init_key_options to key_options
*/

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key_alg:
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          init_key_options
        | init_key_options key_using_alg
        ;
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key_options:
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          /* empty */ {}
        | key_opts
        ;
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key_opts:
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          key_opt
        | key_opts key_opt
        ;
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key_using_alg:
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          USING btree_or_rtree     { Lex->key_create_info.algorithm= $2; }
        | TYPE_SYM btree_or_rtree  { Lex->key_create_info.algorithm= $2; }
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        ;

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key_opt:
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          key_using_alg
        | KEY_BLOCK_SIZE opt_equal ulong_num
          { Lex->key_create_info.block_size= $3; }
        | WITH PARSER_SYM IDENT_sys
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          {
            if (plugin_is_ready(&$3, MYSQL_FTPARSER_PLUGIN))
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              Lex->key_create_info.parser_name= $3;
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            else
            {
              my_error(ER_FUNCTION_NOT_DEFINED, MYF(0), $3.str);
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              MYSQL_YYABORT;
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            }
          }
        ;

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btree_or_rtree:
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          BTREE_SYM { $$= HA_KEY_ALG_BTREE; }
        | RTREE_SYM { $$= HA_KEY_ALG_RTREE; }
        | HASH_SYM  { $$= HA_KEY_ALG_HASH; }
        ;
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key_list:
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          key_list ',' key_part order_dir { Lex->col_list.push_back($3); }
        | key_part order_dir { Lex->col_list.push_back($1); }
        ;
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key_part:
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          ident { $$=new Key_part_spec($1.str); }
        | ident '(' NUM ')'
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          {
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            int key_part_len= atoi($3.str);
            if (!key_part_len)
            {
              my_error(ER_KEY_PART_0, MYF(0), $1.str);
            }
            $$=new Key_part_spec($1.str,(uint) key_part_len);
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          }
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        ;
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opt_ident:
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          /* empty */ { $$=(char*) 0; /* Default length */ }
        | field_ident { $$=$1.str; }
        ;
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opt_component:
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          /* empty */    { $$= null_lex_str; }
        | '.' ident      { $$= $2; }
        ;
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string_list:
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          text_string { Lex->interval_list.push_back($1); }
        | string_list ',' text_string { Lex->interval_list.push_back($3); };
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/*
** Alter table
*/

alter:
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          ALTER opt_ignore TABLE_SYM table_ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->name.str= 0;
            lex->name.length= 0;
            lex->sql_command= SQLCOM_ALTER_TABLE;
            lex->duplicates= DUP_ERROR; 
            if (!lex->select_lex.add_table_to_list(thd, $4, NULL,
                                                   TL_OPTION_UPDATING))
              MYSQL_YYABORT;
            lex->alter_info.reset();
            lex->col_list.empty();
            lex->select_lex.init_order();
            lex->select_lex.db=
              ((TABLE_LIST*) lex->select_lex.table_list.first)->db;
            bzero((char*) &lex->create_info,sizeof(lex->create_info));
            lex->create_info.db_type= 0;
            lex->create_info.default_table_charset= NULL;
            lex->create_info.row_type= ROW_TYPE_NOT_USED;
            lex->alter_info.reset();
            lex->no_write_to_binlog= 0;
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            lex->create_info.storage_media= HA_SM_DEFAULT;
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          }
          alter_commands
          {}
        | ALTER DATABASE ident_or_empty
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          {
            Lex->create_info.default_table_charset= NULL;
            Lex->create_info.used_fields= 0;
          }
5384
          create_database_options
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          {
            LEX *lex=Lex;
            lex->sql_command=SQLCOM_ALTER_DB;
            lex->name= $3;
5389
            if (lex->name.str == NULL &&
5390
                lex->copy_db_to(&lex->name.str, &lex->name.length))
5391
              MYSQL_YYABORT;
5392
          }
5393 5394 5395
        | ALTER PROCEDURE sp_name
          {
            LEX *lex= Lex;
5396

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            if (lex->sphead)
            {
              my_error(ER_SP_NO_DROP_SP, MYF(0), "PROCEDURE");
              MYSQL_YYABORT;
            }
            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
          sp_a_chistics
          {
            LEX *lex=Lex;
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5408 5409
            lex->sql_command= SQLCOM_ALTER_PROCEDURE;
            lex->spname= $3;
5410
          }
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        | ALTER FUNCTION_SYM sp_name
          {
            LEX *lex= Lex;
5414

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            if (lex->sphead)
            {
              my_error(ER_SP_NO_DROP_SP, MYF(0), "FUNCTION");
              MYSQL_YYABORT;
            }
            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
          sp_a_chistics
          {
            LEX *lex=Lex;

            lex->sql_command= SQLCOM_ALTER_FUNCTION;
            lex->spname= $3;
          }
5429
        | ALTER view_algorithm definer
5430
          {
5431 5432 5433
            LEX *lex= Lex;

            if (lex->sphead)
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            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "ALTER VIEW");
              MYSQL_YYABORT;
            }
5438
            lex->create_view_mode= VIEW_ALTER;
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          }
          view_tail
          {}
        | ALTER definer
          /*
            We have two separate rules for ALTER VIEW rather that
            optional view_algorithm above, to resolve the ambiguity
            with the ALTER EVENT below.
          */
          {
            LEX *lex= Lex;
5450 5451 5452 5453 5454 5455

            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "ALTER VIEW");
              MYSQL_YYABORT;
            }
5456
            lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED;
5457 5458
            lex->create_view_mode= VIEW_ALTER;
          }
5459
          view_tail
5460 5461
          {}
        | ALTER definer EVENT_SYM sp_name
5462
          /*
5463 5464
            BE CAREFUL when you add a new rule to update the block where
            YYTHD->client_capabilities is set back to original value
5465
          */
5466
          {
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            /* 
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              It is safe to use Lex->spname because
              ALTER EVENT xxx RENATE TO yyy DO ALTER EVENT RENAME TO
              is not allowed. Lex->spname is used in the case of RENAME TO
              If it had to be supported spname had to be added to
              Event_parse_data.
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            */
5474

5475
            if (!(Lex->event_parse_data= Event_parse_data::new_instance(YYTHD)))
5476
              MYSQL_YYABORT;
5477
            Lex->event_parse_data->identifier= $4;
5478

5479
            /*
5480
              We have to turn off CLIENT_MULTI_QUERIES while parsing a
5481 5482
              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
5483
            */
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            $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
5485
            YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
5486 5487

            Lex->sql_command= SQLCOM_ALTER_EVENT;
5488
          }
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          ev_alter_on_schedule_completion
          opt_ev_rename_to
          opt_ev_status
          opt_ev_comment
          opt_ev_sql_stmt
5494
          {
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            /*
              $1 - ALTER
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              $2 - definer
              $3 - EVENT_SYM
              $4 - sp_name
              $5 - the block above
5501
            */
5502
            YYTHD->client_capabilities |= $<ulong_num>5;
5503

5504
            if (!($6 || $7 || $8 || $9 || $10))
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            {
5506
              my_parse_error(ER(ER_SYNTAX_ERROR));
5507
              MYSQL_YYABORT;
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            }
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            /*
              sql_command is set here because some rules in ev_sql_stmt
              can overwrite it
            */
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            Lex->sql_command= SQLCOM_ALTER_EVENT;
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          }
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        | ALTER TABLESPACE alter_tablespace_info
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_TABLESPACE;
          }
5520
        | ALTER LOGFILE_SYM GROUP_SYM alter_logfile_group_info
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_LOGFILE_GROUP;
          }
        | ALTER TABLESPACE change_tablespace_info
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= CHANGE_FILE_TABLESPACE;
          }
5530
        | ALTER TABLESPACE change_tablespace_access
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_ACCESS_MODE_TABLESPACE;
          }
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        | ALTER SERVER_SYM ident_or_text OPTIONS_SYM '(' server_options_list ')'
          {
            LEX *lex= Lex;
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            lex->sql_command= SQLCOM_ALTER_SERVER;
            lex->server_options.server_name= $3.str;
            lex->server_options.server_name_length= $3.length;
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          }
5542
        ;
5543

5544 5545
ev_alter_on_schedule_completion:
          /* empty */ { $$= 0;}
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        | ON SCHEDULE_SYM ev_schedule_time { $$= 1; }
        | ev_on_completion { $$= 1; }
        | ON SCHEDULE_SYM ev_schedule_time ev_on_completion { $$= 1; }
5549
        ;
5550

5551 5552
opt_ev_rename_to:
          /* empty */ { $$= 0;}
5553 5554
        | RENAME TO_SYM sp_name
          {
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            /*
              Use lex's spname to hold the new name.
              The original name is in the Event_parse_data object
            */
            Lex->spname= $3; 
5560
            $$= 1;
5561
          }
5562
        ;
5563

5564 5565
opt_ev_sql_stmt:
          /* empty*/ { $$= 0;}
5566
        | DO_SYM ev_sql_stmt { $$= 1; }
5567
        ;
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5569
ident_or_empty:
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          /* empty */ { $$.str= 0; $$.length= 0; }
        | ident { $$= $1; }
        ;
5573

5574
alter_commands:
5575 5576 5577
          /* empty */
        | DISCARD TABLESPACE { Lex->alter_info.tablespace_op= DISCARD_TABLESPACE; }
        | IMPORT TABLESPACE { Lex->alter_info.tablespace_op= IMPORT_TABLESPACE; }
5578
        | alter_list
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          opt_partitioning
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        | alter_list
          remove_partitioning
        | remove_partitioning
5583
        | partitioning
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/*
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  This part was added for release 5.1 by Mikael Ronström.
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  From here we insert a number of commands to manage the partitions of a
  partitioned table such as adding partitions, dropping partitions,
  reorganising partitions in various manners. In future releases the list
  will be longer and also include moving partitions to a
  new table and so forth.
*/
        | add_partition_rule
        | DROP PARTITION_SYM alt_part_name_list
          {
5595
            Lex->alter_info.flags|= ALTER_DROP_PARTITION;
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          }
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        | REBUILD_SYM PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
5601
            lex->alter_info.flags|= ALTER_REBUILD_PARTITION;
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            lex->no_write_to_binlog= $3;
          }
        | OPTIMIZE PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
5608
            lex->alter_info.flags|= ALTER_OPTIMIZE_PARTITION;
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            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_no_write_to_binlog opt_mi_check_type
        | ANALYZE_SYM PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
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            lex->alter_info.flags|= ALTER_ANALYZE_PARTITION;
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            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_mi_check_type
        | CHECK_SYM PARTITION_SYM all_or_alt_part_name_list
          {
            LEX *lex= Lex;
5625
            lex->alter_info.flags|= ALTER_CHECK_PARTITION;
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            lex->check_opt.init();
          }
          opt_mi_check_type
        | REPAIR PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
5633
            lex->alter_info.flags|= ALTER_REPAIR_PARTITION;
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            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_mi_repair_type
5638
        | COALESCE PARTITION_SYM opt_no_write_to_binlog real_ulong_num
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          {
            LEX *lex= Lex;
5641
            lex->alter_info.flags|= ALTER_COALESCE_PARTITION;
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            lex->no_write_to_binlog= $3;
5643
            lex->alter_info.no_parts= $4;
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          }
        | reorg_partition_rule
5646 5647
        ;

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remove_partitioning:
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          REMOVE_SYM PARTITIONING_SYM
          {
            Lex->alter_info.flags|= ALTER_REMOVE_PARTITIONING;
          }
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        ;

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all_or_alt_part_name_list:
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          ALL
          {
            Lex->alter_info.flags|= ALTER_ALL_PARTITION;
          }
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        | alt_part_name_list
        ;

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add_partition_rule:
5664
          ADD PARTITION_SYM opt_no_write_to_binlog
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          {
5666 5667 5668 5669 5670 5671 5672 5673 5674
            LEX *lex= Lex;
            lex->part_info= new partition_info();
            if (!lex->part_info)
            {
              mem_alloc_error(sizeof(partition_info));
              MYSQL_YYABORT;
            }
            lex->alter_info.flags|= ALTER_ADD_PARTITION;
            lex->no_write_to_binlog= $3;
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          }
5676 5677
          add_part_extra
          {}
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        ;

add_part_extra:
5681
          /* empty */
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        | '(' part_def_list ')'
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          {
            LEX *lex= Lex;
            lex->part_info->no_parts= lex->part_info->partitions.elements;
          }
5687
        | PARTITIONS_SYM real_ulong_num
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          {
            LEX *lex= Lex;
            lex->part_info->no_parts= $2;
          }
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        ;

reorg_partition_rule:
5695
          REORGANIZE_SYM PARTITION_SYM opt_no_write_to_binlog
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5696
          {
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            LEX *lex= Lex;
            lex->part_info= new partition_info();
            if (!lex->part_info)
            {
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            mem_alloc_error(sizeof(partition_info));
5702 5703 5704
              MYSQL_YYABORT;
            }
            lex->no_write_to_binlog= $3;
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          }
5706
          reorg_parts_rule
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        ;

reorg_parts_rule:
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          /* empty */
          {
            Lex->alter_info.flags|= ALTER_TABLE_REORG;
          }
        | alt_part_name_list
          {
            Lex->alter_info.flags|= ALTER_REORGANIZE_PARTITION;
          }
          INTO '(' part_def_list ')'
          {
            LEX *lex= Lex;
            lex->part_info->no_parts= lex->part_info->partitions.elements;
          }
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        ;

alt_part_name_list:
5726
          alt_part_name_item {}
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        | alt_part_name_list ',' alt_part_name_item {}
        ;

alt_part_name_item:
5731
          ident
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          {
5733 5734 5735 5736 5737
            if (Lex->alter_info.partition_names.push_back($1.str))
            {
              mem_alloc_error(1);
              MYSQL_YYABORT;
            }
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          }
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        ;

/*
  End of management of partition commands
*/

5745
alter_list:
5746 5747
          alter_list_item
        | alter_list ',' alter_list_item
5748
        ;
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add_column:
5751 5752 5753 5754 5755 5756 5757
          ADD opt_column
          {
            LEX *lex=Lex;
            lex->change=0;
            lex->alter_info.flags|= ALTER_ADD_COLUMN;
          }
        ;
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alter_list_item:
5760 5761
          add_column column_def opt_place { }
        | ADD key_def
5762
          {
5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773
            Lex->alter_info.flags|= ALTER_ADD_INDEX;
          }
        | add_column '(' field_list ')'
          {
            Lex->alter_info.flags|= ALTER_ADD_COLUMN | ALTER_ADD_INDEX;
          }
        | CHANGE opt_column field_ident
          {
            LEX *lex=Lex;
            lex->change= $3.str;
            lex->alter_info.flags|= ALTER_CHANGE_COLUMN;
5774
          }
5775
          field_spec opt_place
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        | MODIFY_SYM opt_column field_ident
          {
            LEX *lex=Lex;
5779
            lex->length=lex->dec=0; lex->type=0;
5780
            lex->default_value= lex->on_update_value= 0;
5781
            lex->comment=null_lex_str;
5782 5783
            lex->charset= NULL;
            lex->alter_info.flags|= ALTER_CHANGE_COLUMN;
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          }
          type opt_attribute
          {
            LEX *lex=Lex;
5788
            if (add_field_to_list(lex->thd,&$3,
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                                  (enum enum_field_types) $5,
                                  lex->length,lex->dec,lex->type,
5791
                                  lex->default_value, lex->on_update_value,
5792
                                  &lex->comment,
5793 5794 5795
                                  $3.str, &lex->interval_list, lex->charset,
                                  lex->uint_geom_type))
              MYSQL_YYABORT;
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          }
          opt_place
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        | DROP opt_column field_ident opt_restrict
          {
            LEX *lex=Lex;
            lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::COLUMN,
5802
                                                               $3.str));
5803 5804 5805
            lex->alter_info.flags|= ALTER_DROP_COLUMN;
          }
        | DROP FOREIGN KEY_SYM opt_ident
5806
          {
5807
            Lex->alter_info.flags|= ALTER_DROP_INDEX | ALTER_FOREIGN_KEY;
5808
          }
5809
        | DROP PRIMARY_SYM KEY_SYM
5810
          {
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            LEX *lex=Lex;
            lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
                                                               primary_key_name));
            lex->alter_info.flags|= ALTER_DROP_INDEX;
          }
        | DROP key_or_index field_ident
          {
            LEX *lex=Lex;
            lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
                                                               $3.str));
            lex->alter_info.flags|= ALTER_DROP_INDEX;
          }
        | DISABLE_SYM KEYS
          {
            LEX *lex=Lex;
5826
            lex->alter_info.keys_onoff= DISABLE;
5827
            lex->alter_info.flags|= ALTER_KEYS_ONOFF;
5828
          }
5829
        | ENABLE_SYM KEYS
5830
          {
5831
            LEX *lex=Lex;
5832
            lex->alter_info.keys_onoff= ENABLE;
5833
            lex->alter_info.flags|= ALTER_KEYS_ONOFF;
5834
          }
5835 5836 5837 5838 5839 5840 5841 5842 5843 5844
        | ALTER opt_column field_ident SET DEFAULT signed_literal
          {
            LEX *lex=Lex;
            lex->alter_info.alter_list.push_back(new Alter_column($3.str,$6));
            lex->alter_info.flags|= ALTER_CHANGE_COLUMN_DEFAULT;
          }
        | ALTER opt_column field_ident DROP DEFAULT
          {
            LEX *lex=Lex;
            lex->alter_info.alter_list.push_back(new Alter_column($3.str,
5845
                                                                  (Item*) 0));
5846 5847 5848 5849 5850 5851 5852
            lex->alter_info.flags|= ALTER_CHANGE_COLUMN_DEFAULT;
          }
        | RENAME opt_to table_ident
          {
            LEX *lex=Lex;
            size_t dummy;
            lex->select_lex.db=$3->db.str;
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            if (lex->select_lex.db == NULL &&
5854
                lex->copy_db_to(&lex->select_lex.db, &dummy))
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            {
5856
              MYSQL_YYABORT;
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5857
            }
5858
            if (check_table_name($3->table.str,$3->table.length) ||
5859
                $3->db.str && check_db_name(&$3->db))
5860
            {
5861
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3->table.str);
5862
              MYSQL_YYABORT;
5863
            }
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            lex->name= $3->table;
            lex->alter_info.flags|= ALTER_RENAME;
          }
        | CONVERT_SYM TO_SYM charset charset_name_or_default opt_collate
          {
            if (!$4)
            {
              THD *thd= YYTHD;
              $4= thd->variables.collation_database;
            }
            $5= $5 ? $5 : $4;
            if (!my_charset_same($4,$5))
            {
              my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
5878
                       $5->name, $4->csname);
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              MYSQL_YYABORT;
            }
            LEX *lex= Lex;
            lex->create_info.table_charset=
            lex->create_info.default_table_charset= $5;
            lex->create_info.used_fields|= (HA_CREATE_USED_CHARSET |
              HA_CREATE_USED_DEFAULT_CHARSET);
            lex->alter_info.flags|= ALTER_CONVERT;
          }
5888
        | create_table_options_space_separated
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          {
            LEX *lex=Lex;
            lex->alter_info.flags|= ALTER_OPTIONS;
          }
        | FORCE_SYM
          {
            Lex->alter_info.flags|= ALTER_FORCE;
          }
        | alter_order_clause
          {
            LEX *lex=Lex;
            lex->alter_info.flags|= ALTER_ORDER;
          }
        ;
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opt_column:
5905 5906 5907
          /* empty */ {}
        | COLUMN_SYM {}
        ;
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opt_ignore:
5910 5911 5912
          /* empty */ { Lex->ignore= 0;}
        | IGNORE_SYM { Lex->ignore= 1;}
        ;
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opt_restrict:
5915 5916 5917 5918
          /* empty */ { Lex->drop_mode= DROP_DEFAULT; }
        | RESTRICT    { Lex->drop_mode= DROP_RESTRICT; }
        | CASCADE     { Lex->drop_mode= DROP_CASCADE; }
        ;
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opt_place:
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          /* empty */ {}
        | AFTER_SYM ident { store_position_for_column($2.str); }
        | FIRST_SYM  { store_position_for_column(first_keyword); }
        ;
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opt_to:
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          /* empty */ {}
        | TO_SYM {}
        | EQ {}
        | AS {}
        ;
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5932

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/*
5934
  SLAVE START and SLAVE STOP are deprecated. We keep them for compatibility.
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*/

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slave:
5938
          START_SYM SLAVE slave_thread_opts
5939
          {
5940
            LEX *lex=Lex;
5941
            lex->sql_command = SQLCOM_SLAVE_START;
5942 5943 5944
            lex->type = 0;
            /* We'll use mi structure for UNTIL options */
            bzero((char*) &lex->mi, sizeof(lex->mi));
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5945
            /* If you change this code don't forget to update SLAVE START too */
5946 5947 5948
          }
          slave_until
          {}
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5949 5950
        | STOP_SYM SLAVE slave_thread_opts
          {
5951
            LEX *lex=Lex;
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5952
            lex->sql_command = SQLCOM_SLAVE_STOP;
5953
            lex->type = 0;
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5954
            /* If you change this code don't forget to update SLAVE STOP too */
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5955
          }
5956 5957 5958 5959 5960 5961 5962
        | SLAVE START_SYM slave_thread_opts
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_SLAVE_START;
            lex->type = 0;
            /* We'll use mi structure for UNTIL options */
            bzero((char*) &lex->mi, sizeof(lex->mi));
5963 5964 5965
          }
          slave_until
          {}
5966 5967 5968 5969 5970 5971
        | SLAVE STOP_SYM slave_thread_opts
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_SLAVE_STOP;
            lex->type = 0;
          }
5972 5973
        ;

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5974
start:
5975 5976 5977 5978 5979 5980 5981
          START_SYM TRANSACTION_SYM start_transaction_opts
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_BEGIN;
            lex->start_transaction_opt= $3;
          }
        ;
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5982

5983
start_transaction_opts:
5984
          /*empty*/ { $$ = 0; }
5985
        | WITH CONSISTENT_SYM SNAPSHOT_SYM
5986 5987 5988
          {
            $$= MYSQL_START_TRANS_OPT_WITH_CONS_SNAPSHOT;
          }
5989
        ;
5990

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5991
slave_thread_opts:
5992 5993 5994 5995
          { Lex->slave_thd_opt= 0; }
          slave_thread_opt_list
          {}
        ;
5996 5997

slave_thread_opt_list:
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          slave_thread_opt
        | slave_thread_opt_list ',' slave_thread_opt
        ;
6001 6002

slave_thread_opt:
6003 6004 6005 6006
          /*empty*/ {}
        | SQL_THREAD   { Lex->slave_thd_opt|=SLAVE_SQL; }
        | RELAY_THREAD { Lex->slave_thd_opt|=SLAVE_IO; }
        ;
6007

6008
slave_until:
6009 6010
          /*empty*/ {}
        | UNTIL_SYM slave_until_opts
6011 6012 6013 6014 6015 6016 6017
          {
            LEX *lex=Lex;
            if ((lex->mi.log_file_name || lex->mi.pos) &&
                (lex->mi.relay_log_name || lex->mi.relay_log_pos) ||
                !((lex->mi.log_file_name && lex->mi.pos) ||
                  (lex->mi.relay_log_name && lex->mi.relay_log_pos)))
            {
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               my_message(ER_BAD_SLAVE_UNTIL_COND,
                          ER(ER_BAD_SLAVE_UNTIL_COND), MYF(0));
6020
               MYSQL_YYABORT;
6021 6022
            }
          }
6023
        ;
6024 6025

slave_until_opts:
6026 6027 6028
          master_file_def
        | slave_until_opts ',' master_file_def
        ;
6029

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6030
restore:
6031 6032 6033 6034 6035 6036 6037 6038 6039
          RESTORE_SYM table_or_tables
          {
            Lex->sql_command = SQLCOM_RESTORE_TABLE;
          }
          table_list FROM TEXT_STRING_sys
          {
            Lex->backup_dir = $6.str;
          }
        ;
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backup:
6042 6043 6044 6045 6046 6047 6048 6049 6050
          BACKUP_SYM table_or_tables
          {
            Lex->sql_command = SQLCOM_BACKUP_TABLE;
          }
          table_list TO_SYM TEXT_STRING_sys
          {
            Lex->backup_dir = $6.str;
          }
        ;
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6051

6052
checksum:
6053 6054 6055 6056 6057 6058 6059 6060
          CHECKSUM_SYM table_or_tables
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_CHECKSUM;
          }
          table_list opt_checksum_type
          {}
        ;
6061

6062
opt_checksum_type:
6063 6064 6065
          /* nothing */ { Lex->check_opt.flags= 0; }
        | QUICK         { Lex->check_opt.flags= T_QUICK; }
        | EXTENDED_SYM  { Lex->check_opt.flags= T_EXTEND; }
6066 6067
        ;

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6068
repair:
6069 6070 6071 6072 6073 6074 6075 6076 6077 6078
          REPAIR opt_no_write_to_binlog table_or_tables
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_REPAIR;
            lex->no_write_to_binlog= $2;
            lex->check_opt.init();
          }
          table_list opt_mi_repair_type
          {}
        ;
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6079

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opt_mi_repair_type:
6081 6082 6083
          /* empty */ { Lex->check_opt.flags = T_MEDIUM; }
        | mi_repair_types {}
        ;
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6084

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6085
mi_repair_types:
6086 6087 6088
          mi_repair_type {}
        | mi_repair_type mi_repair_types {}
        ;
6089

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6090
mi_repair_type:
6091 6092 6093 6094
          QUICK        { Lex->check_opt.flags|= T_QUICK; }
        | EXTENDED_SYM { Lex->check_opt.flags|= T_EXTEND; }
        | USE_FRM      { Lex->check_opt.sql_flags|= TT_USEFRM; }
        ;
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6095 6096

analyze:
6097 6098 6099 6100 6101 6102 6103 6104 6105 6106
          ANALYZE_SYM opt_no_write_to_binlog table_or_tables
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_ANALYZE;
            lex->no_write_to_binlog= $2;
            lex->check_opt.init();
          }
          table_list opt_mi_check_type
          {}
        ;
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6107

6108
binlog_base64_event:
6109 6110 6111 6112 6113
          BINLOG_SYM TEXT_STRING_sys
          {
            Lex->sql_command = SQLCOM_BINLOG_BASE64_EVENT;
            Lex->comment= $2;
          }
6114
        ;
6115

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6116
check:
6117 6118 6119
          CHECK_SYM table_or_tables
          {
            LEX *lex=Lex;
6120

6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "CHECK");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_CHECK;
            lex->check_opt.init();
          }
          table_list opt_mi_check_type
          {}
        ;
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6132

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opt_mi_check_type:
6134 6135 6136
          /* empty */ { Lex->check_opt.flags = T_MEDIUM; }
        | mi_check_types {}
        ;
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6137 6138

mi_check_types:
6139 6140 6141
          mi_check_type {}
        | mi_check_type mi_check_types {}
        ;
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6142 6143

mi_check_type:
6144 6145 6146 6147 6148 6149 6150
          QUICK               { Lex->check_opt.flags|= T_QUICK; }
        | FAST_SYM            { Lex->check_opt.flags|= T_FAST; }
        | MEDIUM_SYM          { Lex->check_opt.flags|= T_MEDIUM; }
        | EXTENDED_SYM        { Lex->check_opt.flags|= T_EXTEND; }
        | CHANGED             { Lex->check_opt.flags|= T_CHECK_ONLY_CHANGED; }
        | FOR_SYM UPGRADE_SYM { Lex->check_opt.sql_flags|= TT_FOR_UPGRADE; }
        ;
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6151

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6152
optimize:
6153 6154 6155 6156 6157 6158 6159 6160 6161 6162
          OPTIMIZE opt_no_write_to_binlog table_or_tables
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_OPTIMIZE;
            lex->no_write_to_binlog= $2;
            lex->check_opt.init();
          }
          table_list opt_mi_check_type
          {}
        ;
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6163

6164
opt_no_write_to_binlog:
6165 6166 6167 6168
          /* empty */ { $$= 0; }
        | NO_WRITE_TO_BINLOG { $$= 1; }
        | LOCAL_SYM { $$= 1; }
        ;
6169

6170
rename:
6171
          RENAME table_or_tables
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6172
          {
6173 6174 6175 6176 6177 6178 6179 6180
            Lex->sql_command= SQLCOM_RENAME_TABLE;
          }
          table_to_table_list
          {}
        | RENAME DATABASE
          {
            Lex->db_list.empty();
            Lex->sql_command= SQLCOM_RENAME_DB;
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6181 6182 6183
          }
          db_to_db
          {}
6184
        | RENAME USER clear_privileges rename_list
6185
          {
6186
            Lex->sql_command = SQLCOM_RENAME_USER;
6187
          }
6188
        ;
6189

6190
rename_list:
6191 6192 6193 6194 6195
          user TO_SYM user
          {
            if (Lex->users_list.push_back($1) || Lex->users_list.push_back($3))
              MYSQL_YYABORT;
          }
6196 6197 6198
        | rename_list ',' user TO_SYM user
          {
            if (Lex->users_list.push_back($3) || Lex->users_list.push_back($5))
6199
              MYSQL_YYABORT;
6200 6201 6202
          }
        ;

6203
table_to_table_list:
6204 6205 6206
          table_to_table
        | table_to_table_list ',' table_to_table
        ;
6207 6208

table_to_table:
6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219
          table_ident TO_SYM table_ident
          {
            LEX *lex=Lex;
            SELECT_LEX *sl= lex->current_select;
            if (!sl->add_table_to_list(lex->thd, $1,NULL,TL_OPTION_UPDATING,
                                       TL_IGNORE) ||
                !sl->add_table_to_list(lex->thd, $3,NULL,TL_OPTION_UPDATING,
                                       TL_IGNORE))
              MYSQL_YYABORT;
          }
        ;
6220

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6221
db_to_db:
6222 6223 6224 6225 6226 6227 6228
          ident TO_SYM ident
          {
            LEX *lex=Lex;
            if (lex->db_list.push_back((LEX_STRING*)
                                       sql_memdup(&$1, sizeof(LEX_STRING))) ||
                lex->db_list.push_back((LEX_STRING*)
                                       sql_memdup(&$3, sizeof(LEX_STRING))))
6229
              MYSQL_YYABORT;
6230 6231
          }
        ;
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6232

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6233
keycache:
6234 6235 6236 6237 6238 6239
          CACHE_SYM INDEX_SYM keycache_list IN_SYM key_cache_name
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_ASSIGN_TO_KEYCACHE;
            lex->ident= $5;
          }
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6240 6241 6242
        ;

keycache_list:
6243 6244 6245
          assign_to_keycache
        | keycache_list ',' assign_to_keycache
        ;
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6246 6247

assign_to_keycache:
6248 6249 6250 6251 6252 6253
          table_ident cache_keys_spec
          {
            if (!Select->add_table_to_list(YYTHD, $1, NULL, 0, TL_READ, 
                                           Select->pop_index_hints()))
              MYSQL_YYABORT;
          }
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        ;

6256
key_cache_name:
6257 6258 6259
          ident    { $$= $1; }
        | DEFAULT  { $$ = default_key_cache_base; }
        ;
6260

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6261
preload:
6262 6263 6264 6265 6266 6267 6268 6269
          LOAD INDEX_SYM INTO CACHE_SYM
          {
            LEX *lex=Lex;
            lex->sql_command=SQLCOM_PRELOAD_KEYS;
          }
          preload_list
          {}
        ;
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6270 6271

preload_list:
6272 6273 6274
          preload_keys
        | preload_list ',' preload_keys
        ;
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preload_keys:
6277 6278 6279 6280 6281 6282 6283
          table_ident cache_keys_spec opt_ignore_leaves
          {
            if (!Select->add_table_to_list(YYTHD, $1, NULL, $3, TL_READ,
                                           Select->pop_index_hints()))
              MYSQL_YYABORT;
          }
        ;
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6284

6285
cache_keys_spec:
6286 6287 6288 6289
          {
            Lex->select_lex.alloc_index_hints(YYTHD);
            Select->set_index_hint_type(INDEX_HINT_USE, 
                                        global_system_variables.old_mode ? 
6290 6291
                                        INDEX_HINT_MASK_JOIN : 
                                        INDEX_HINT_MASK_ALL);
6292 6293
          }
          cache_key_list_or_empty
6294
        ;
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6295

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cache_key_list_or_empty:
6297 6298 6299
          /* empty */ { }
        | key_or_index '(' opt_key_usage_list ')'
        ;
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6300

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opt_ignore_leaves:
6302 6303 6304 6305
          /* empty */
          { $$= 0; }
        | IGNORE_SYM LEAVES { $$= TL_OPTION_IGNORE_LEAVES; }
        ;
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6306

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6307
/*
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6308
  Select : retrieve data from table
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*/


select:
6313 6314 6315 6316 6317 6318
          select_init
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
          }
        ;
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6319

6320
/* Need select_init2 for subselects. */
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6321
select_init:
6322 6323 6324
          SELECT_SYM select_init2
        | '(' select_paren ')' union_opt
        ;
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6325 6326

select_paren:
6327 6328 6329
          SELECT_SYM select_part2
          {
            LEX *lex= Lex;
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            SELECT_LEX * sel= lex->current_select;
6331 6332
            if (sel->set_braces(1))
            {
6333
              my_parse_error(ER(ER_SYNTAX_ERROR));
6334 6335
              MYSQL_YYABORT;
            }
6336 6337 6338 6339 6340
            if (sel->linkage == UNION_TYPE &&
                !sel->master_unit()->first_select()->braces &&
                sel->master_unit()->first_select()->linkage ==
                UNION_TYPE)
            {
6341 6342
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
6343
            }
6344
            /* select in braces, can't contain global parameters */
6345
            if (sel->master_unit()->fake_select_lex)
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6346 6347
              sel->master_unit()->global_parameters=
                 sel->master_unit()->fake_select_lex;
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6348
          }
6349 6350
        | '(' select_paren ')'
        ;
6351

6352
select_init2:
6353 6354 6355 6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366 6367 6368 6369 6370
          select_part2
          {
            LEX *lex= Lex;
            SELECT_LEX * sel= lex->current_select;
            if (lex->current_select->set_braces(0))
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            if (sel->linkage == UNION_TYPE &&
                sel->master_unit()->first_select()->braces)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
          }
          union_clause
        ;
6371

6372
select_part2:
6373 6374 6375 6376 6377 6378 6379 6380 6381 6382 6383 6384 6385
          {
            LEX *lex= Lex;
            SELECT_LEX *sel= lex->current_select;
            if (sel->linkage != UNION_TYPE)
              mysql_init_select(lex);
            lex->current_select->parsing_place= SELECT_LIST;
          }
          select_options select_item_list
          {
            Select->parsing_place= NO_MATTER;
          }
          select_into select_lock_type
        ;
6386

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6387
select_into:
6388
          opt_order_clause opt_limit_clause {}
6389
        | into
6390 6391 6392 6393
        | select_from
        | into select_from
        | select_from into
        ;
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6394 6395

select_from:
6396 6397
          FROM join_table_list where_clause group_clause having_clause
          opt_order_clause opt_limit_clause procedure_clause
6398 6399 6400 6401 6402
          {
            Select->context.table_list=
              Select->context.first_name_resolution_table= 
                (TABLE_LIST *) Select->table_list.first;
          }
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6403
        | FROM DUAL_SYM where_clause opt_limit_clause
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6404 6405 6406 6407
          /* oracle compatibility: oracle always requires FROM clause,
             and DUAL is system table without fields.
             Is "SELECT 1 FROM DUAL" any better than "SELECT 1" ?
          Hmmm :) */
6408
        ;
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6409 6410

select_options:
6411 6412 6413 6414 6415 6416
          /* empty*/
        | select_option_list
          {
            if (Select->options & SELECT_DISTINCT && Select->options & SELECT_ALL)
            {
              my_error(ER_WRONG_USAGE, MYF(0), "ALL", "DISTINCT");
6417
              MYSQL_YYABORT;
6418
            }
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6419
          }
6420
        ;
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select_option_list:
6423 6424 6425
          select_option_list select_option
        | select_option
        ;
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6426 6427

select_option:
6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450
          STRAIGHT_JOIN { Select->options|= SELECT_STRAIGHT_JOIN; }
        | HIGH_PRIORITY
          {
            if (check_simple_select())
              MYSQL_YYABORT;
            Lex->lock_option= TL_READ_HIGH_PRIORITY;
          }
        | DISTINCT         { Select->options|= SELECT_DISTINCT; }
        | SQL_SMALL_RESULT { Select->options|= SELECT_SMALL_RESULT; }
        | SQL_BIG_RESULT   { Select->options|= SELECT_BIG_RESULT; }
        | SQL_BUFFER_RESULT
          {
            if (check_simple_select())
              MYSQL_YYABORT;
            Select->options|= OPTION_BUFFER_RESULT;
          }
        | SQL_CALC_FOUND_ROWS
          {
            if (check_simple_select())
              MYSQL_YYABORT;
            Select->options|= OPTION_FOUND_ROWS;
          }
        | SQL_NO_CACHE_SYM
6451 6452
          {
            Lex->safe_to_cache_query=0;
6453
            Lex->select_lex.options&= ~OPTION_TO_QUERY_CACHE;
6454 6455
            Lex->select_lex.sql_cache= SELECT_LEX::SQL_NO_CACHE;
          }
6456 6457
        | SQL_CACHE_SYM
          {
6458 6459 6460 6461 6462 6463
            /*
             Honor this flag only if SQL_NO_CACHE wasn't specified AND
             we are parsing the outermost SELECT in the query.
            */
            if (Lex->select_lex.sql_cache != SELECT_LEX::SQL_NO_CACHE &&
                Lex->current_select == &Lex->select_lex)
6464 6465
            {
              Lex->safe_to_cache_query=1;
6466
              Lex->select_lex.options|= OPTION_TO_QUERY_CACHE;
6467 6468
              Lex->select_lex.sql_cache= SELECT_LEX::SQL_CACHE;
            }
6469 6470 6471
          }
        | ALL { Select->options|= SELECT_ALL; }
        ;
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6472

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select_lock_type:
6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488
          /* empty */
        | FOR_SYM UPDATE_SYM
          {
            LEX *lex=Lex;
            lex->current_select->set_lock_for_tables(TL_WRITE);
            lex->safe_to_cache_query=0;
          }
        | LOCK_SYM IN_SYM SHARE_SYM MODE_SYM
          {
            LEX *lex=Lex;
            lex->current_select->
              set_lock_for_tables(TL_READ_WITH_SHARED_LOCKS);
            lex->safe_to_cache_query=0;
          }
        ;
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6489

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6490
select_item_list:
6491 6492 6493 6494 6495 6496
          select_item_list ',' select_item
        | select_item
        | '*'
          {
            THD *thd= YYTHD;
            if (add_item_to_list(thd,
6497 6498 6499
                                 new Item_field(&thd->lex->current_select->
                                                context,
                                                NULL, NULL, "*")))
6500 6501 6502 6503
              MYSQL_YYABORT;
            (thd->lex->current_select->with_wild)++;
          }
        ;
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select_item:
6506 6507
          remember_name select_item2 remember_end select_alias
          {
6508 6509 6510
            THD *thd= YYTHD;
            DBUG_ASSERT($1 < $3);

6511 6512 6513
            if (add_item_to_list(thd, $2))
              MYSQL_YYABORT;
            if ($4.str)
6514 6515
            {
              $2->is_autogenerated_name= FALSE;
6516
              $2->set_name($4.str, $4.length, system_charset_info);
6517
            }
6518
            else if (!$2->name)
6519
            {
6520 6521 6522 6523
              $2->set_name($1, (uint) ($3 - $1), thd->charset());
            }
          }
        ;
6524

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6525
remember_name:
6526 6527 6528 6529 6530 6531
          {
            THD *thd= YYTHD;
            Lex_input_stream *lip= thd->m_lip;
            $$= (char*) lip->get_cpp_tok_start();
          }
        ;
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remember_end:
6534 6535 6536 6537 6538 6539
          {
            THD *thd= YYTHD;
            Lex_input_stream *lip= thd->m_lip;
            $$= (char*) lip->get_cpp_tok_end();
          }
        ;
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6540 6541

select_item2:
6542 6543 6544
          table_wild { $$=$1; /* table.* */ }
        | expr { $$=$1; }
        ;
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6545 6546

select_alias:
6547 6548 6549 6550 6551 6552
          /* empty */ { $$=null_lex_str;}
        | AS ident { $$=$2; }
        | AS TEXT_STRING_sys { $$=$2; }
        | ident { $$=$1; }
        | TEXT_STRING_sys { $$=$1; }
        ;
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6553 6554

optional_braces:
6555 6556 6557
          /* empty */ {}
        | '(' ')' {}
        ;
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6558

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6559
/* all possible expressions */
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expr:
          bool_factor
        | expr or expr %prec OR_SYM
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          {
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            /*
              Design notes:
              Do not use a manually maintained stack like thd->lex->xxx_list,
              but use the internal bison stack ($$, $1 and $3) instead.
              Using the bison stack is:
              - more robust to changes in the grammar,
              - guaranteed to be in sync with the parser state,
              - better for performances (no memory allocation).
            */
            Item_cond_or *item1;
            Item_cond_or *item3;
            if (is_cond_or($1))
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            {
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              item1= (Item_cond_or*) $1;
              if (is_cond_or($3))
              {
                item3= (Item_cond_or*) $3;
                /*
                  (X1 OR X2) OR (Y1 OR Y2) ==> OR (X1, X2, Y1, Y2)
                */
                item3->add_at_head(item1->argument_list());
                $$ = $3;
              }
              else
              {
                /*
                  (X1 OR X2) OR Y ==> OR (X1, X2, Y)
                */
                item1->add($3);
                $$ = $1;
              }
            }
            else if (is_cond_or($3))
            {
              item3= (Item_cond_or*) $3;
              /*
                X OR (Y1 OR Y2) ==> OR (X, Y1, Y2)
              */
              item3->add_at_head($1);
              $$ = $3;
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            }
            else
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            {
              /* X OR Y */
              $$ = new (YYTHD->mem_root) Item_cond_or($1, $3);
            }
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          }
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        | expr XOR expr %prec XOR
          {
            /* XOR is a proprietary extension */
            $$ = new (YYTHD->mem_root) Item_cond_xor($1, $3);
          }
        | expr and expr %prec AND_SYM
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          {
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            /* See comments in rule expr: expr or expr */
            Item_cond_and *item1;
            Item_cond_and *item3;
            if (is_cond_and($1))
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            {
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              item1= (Item_cond_and*) $1;
              if (is_cond_and($3))
              {
                item3= (Item_cond_and*) $3;
                /*
                  (X1 AND X2) AND (Y1 AND Y2) ==> AND (X1, X2, Y1, Y2)
                */
                item3->add_at_head(item1->argument_list());
                $$ = $3;
              }
              else
              {
                /*
                  (X1 AND X2) AND Y ==> AND (X1, X2, Y)
                */
                item1->add($3);
                $$ = $1;
              }
            }
            else if (is_cond_and($3))
            {
              item3= (Item_cond_and*) $3;
              /*
                X AND (Y1 AND Y2) ==> AND (X, Y1, Y2)
              */
              item3->add_at_head($1);
              $$ = $3;
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            }
            else
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            {
              /* X AND Y */
              $$ = new (YYTHD->mem_root) Item_cond_and($1, $3);
            }
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          }
        ;
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bool_factor:
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          NOT_SYM bool_factor { $$= negate_expression(YYTHD, $2); }
        | bool_test
        ;
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bool_test:
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          bool_pri IS TRUE_SYM
          { $$= new (YYTHD->mem_root) Item_func_istrue($1); }
        | bool_pri IS not TRUE_SYM
          { $$= new (YYTHD->mem_root) Item_func_isnottrue($1); }
        | bool_pri IS FALSE_SYM
          { $$= new (YYTHD->mem_root) Item_func_isfalse($1); }
        | bool_pri IS not FALSE_SYM
          { $$= new (YYTHD->mem_root) Item_func_isnotfalse($1); }
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        | bool_pri IS UNKNOWN_SYM { $$= new Item_func_isnull($1); }
        | bool_pri IS not UNKNOWN_SYM { $$= new Item_func_isnotnull($1); }
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        | bool_pri
        ;
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bool_pri:
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          bool_pri IS NULL_SYM { $$= new Item_func_isnull($1); }
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        | bool_pri IS not NULL_SYM { $$= new Item_func_isnotnull($1); }
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        | bool_pri EQUAL_SYM predicate { $$= new Item_func_equal($1,$3); }
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        | bool_pri comp_op predicate %prec EQ
          { $$= (*$2)(0)->create($1,$3); }
        | bool_pri comp_op all_or_any '(' subselect ')' %prec EQ
          { $$= all_any_subquery_creator($1, $2, $3, $5); }
        | predicate
        ;
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predicate:
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          bit_expr IN_SYM '(' subselect ')'
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          {
            $$= new (YYTHD->mem_root) Item_in_subselect($1, $4);
          }
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        | bit_expr not IN_SYM '(' subselect ')'
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          {
            THD *thd= YYTHD;
            Item *item= new (thd->mem_root) Item_in_subselect($1, $5);
            $$= negate_expression(thd, item);
          }
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        | bit_expr IN_SYM '(' expr ')'
          {
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            $$= handle_sql2003_note184_exception(YYTHD, $1, true, $4);
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          }
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        | bit_expr IN_SYM '(' expr ',' expr_list ')'
          { 
            $6->push_front($4);
            $6->push_front($1);
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            $$= new (YYTHD->mem_root) Item_func_in(*$6);
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          }
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        | bit_expr not IN_SYM '(' expr ')'
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          {
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            $$= handle_sql2003_note184_exception(YYTHD, $1, false, $5);
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          }
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        | bit_expr not IN_SYM '(' expr ',' expr_list ')'
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          {
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            $7->push_front($5);
            $7->push_front($1);
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            Item_func_in *item = new (YYTHD->mem_root) Item_func_in(*$7);
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            item->negate();
            $$= item;
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          }
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        | bit_expr BETWEEN_SYM bit_expr AND_SYM predicate
          { $$= new Item_func_between($1,$3,$5); }
        | bit_expr not BETWEEN_SYM bit_expr AND_SYM predicate
          {
            Item_func_between *item= new Item_func_between($1,$4,$6);
            item->negate();
            $$= item;
          }
        | bit_expr SOUNDS_SYM LIKE bit_expr
          {
            $$= new Item_func_eq(new Item_func_soundex($1),
                                 new Item_func_soundex($4));
          }
        | bit_expr LIKE simple_expr opt_escape
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          { $$= new Item_func_like($1,$3,$4,Lex->escape_used); }
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        | bit_expr not LIKE simple_expr opt_escape
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          { $$= new Item_func_not(new Item_func_like($1,$4,$5, Lex->escape_used)); }
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        | bit_expr REGEXP bit_expr { $$= new Item_func_regex($1,$3); }
        | bit_expr not REGEXP bit_expr
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          { $$= negate_expression(YYTHD, new Item_func_regex($1,$4)); }
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        | bit_expr
        ;
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bit_expr:
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          bit_expr '|' bit_term { $$= new Item_func_bit_or($1,$3); }
        | bit_term
        ;
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bit_term:
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          bit_term '&' bit_factor { $$= new Item_func_bit_and($1,$3); }
        | bit_factor
        ;
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bit_factor:
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          bit_factor SHIFT_LEFT value_expr
          { $$= new Item_func_shift_left($1,$3); }
        | bit_factor SHIFT_RIGHT value_expr
          { $$= new Item_func_shift_right($1,$3); }
        | value_expr
        ;
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value_expr:
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          value_expr '+' term { $$= new Item_func_plus($1,$3); }
        | value_expr '-' term { $$= new Item_func_minus($1,$3); }
        | value_expr '+' interval_expr interval
          { $$= new Item_date_add_interval($1,$3,$4,0); }
        | value_expr '-' interval_expr interval
          { $$= new Item_date_add_interval($1,$3,$4,1); }
        | term
        ;
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term:
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          term '*' factor { $$= new Item_func_mul($1,$3); }
        | term '/' factor { $$= new Item_func_div($1,$3); }
        | term '%' factor { $$= new Item_func_mod($1,$3); }
        | term DIV_SYM factor { $$= new Item_func_int_div($1,$3); }
        | term MOD_SYM factor { $$= new Item_func_mod($1,$3); }
        | factor
        ;
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factor:
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          factor '^' simple_expr { $$= new Item_func_bit_xor($1,$3); }
        | simple_expr
        ;

or:
          OR_SYM
       | OR2_SYM
       ;

and:
          AND_SYM
       | AND_AND_SYM
       ;

not:
          NOT_SYM
        | NOT2_SYM
        ;

not2:
          '!'
        | NOT2_SYM
        ;

comp_op:
          EQ     { $$ = &comp_eq_creator; }
        | GE     { $$ = &comp_ge_creator; }
        | GT_SYM { $$ = &comp_gt_creator; }
        | LE     { $$ = &comp_le_creator; }
        | LT     { $$ = &comp_lt_creator; }
        | NE     { $$ = &comp_ne_creator; }
        ;
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all_or_any:
          ALL     { $$ = 1; }
        | ANY_SYM { $$ = 0; }
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        ;

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interval_expr:
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          INTERVAL_SYM expr %prec INTERVAL_SYM
          { $$=$2; }
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        ;

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simple_expr:
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          simple_ident
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        | function_call_keyword
        | function_call_nonkeyword
        | function_call_generic
        | function_call_conflict
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        | simple_expr COLLATE_SYM ident_or_text %prec NEG
          {
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            THD *thd= YYTHD;
            Item *i1= new (thd->mem_root) Item_string($3.str,
                                                      $3.length,
                                                      thd->charset());
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            $$= new (thd->mem_root) Item_func_set_collation($1, i1);
          }
        | literal
        | param_marker
        | variable
        | sum_expr
        | simple_expr OR_OR_SYM simple_expr
          { $$= new (YYTHD->mem_root) Item_func_concat($1, $3); }
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        | '+' simple_expr %prec NEG { $$= $2; }
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        | '-' simple_expr %prec NEG
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          { $$= new (YYTHD->mem_root) Item_func_neg($2); }
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        | '~' simple_expr %prec NEG
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          { $$= new (YYTHD->mem_root) Item_func_bit_neg($2); }
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        | not2 simple_expr %prec NEG
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          { $$= negate_expression(YYTHD, $2); }
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        | '(' subselect ')'
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          { 
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            $$= new (YYTHD->mem_root) Item_singlerow_subselect($2); 
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          }
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        | '(' expr ')' { $$= $2; }
        | '(' expr ',' expr_list ')'
          {
            $4->push_front($2);
            $$= new (YYTHD->mem_root) Item_row(*$4);
          }
        | ROW_SYM '(' expr ',' expr_list ')'
          {
            $5->push_front($3);
            $$= new (YYTHD->mem_root) Item_row(*$5);
          }
        | EXISTS '(' subselect ')'
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          {
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            $$= new (YYTHD->mem_root) Item_exists_subselect($3); 
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          }
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        | '{' ident expr '}' { $$= $3; }
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        | MATCH ident_list_arg AGAINST '(' bit_expr fulltext_options ')'
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          {
            $2->push_front($5);
            Item_func_match *i1= new (YYTHD->mem_root) Item_func_match(*$2, $6);
            Select->add_ftfunc_to_list(i1);
            $$= i1;
          }
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        | BINARY simple_expr %prec NEG
          {
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            $$= create_func_cast(YYTHD, $2, ITEM_CAST_CHAR, NULL, NULL,
6883
                                 &my_charset_bin);
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          }
        | CAST_SYM '(' expr AS cast_type ')'
          {
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            LEX *lex= Lex;
6888
            $$= create_func_cast(YYTHD, $3, $5, lex->length, lex->dec,
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                                 lex->charset);
6890
            if (!$$)
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              MYSQL_YYABORT;
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          }
        | CASE_SYM opt_expr when_list opt_else END
          { $$= new (YYTHD->mem_root) Item_func_case(* $3, $2, $4 ); }
        | CONVERT_SYM '(' expr ',' cast_type ')'
          {
            $$= create_func_cast(YYTHD, $3, $5, Lex->length, Lex->dec,
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                                 Lex->charset);
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            if (!$$)
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              MYSQL_YYABORT;
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          }
        | CONVERT_SYM '(' expr USING charset_name ')'
          { $$= new (YYTHD->mem_root) Item_func_conv_charset($3,$5); }
        | DEFAULT '(' simple_ident ')'
          {
            if ($3->is_splocal())
            {
              Item_splocal *il= static_cast<Item_splocal *>($3);

              my_error(ER_WRONG_COLUMN_NAME, MYF(0), il->my_name()->str);
              MYSQL_YYABORT;
            }
            $$= new (YYTHD->mem_root) Item_default_value(Lex->current_context(),
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                                                         $3);
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          }
        | VALUES '(' simple_ident_nospvar ')'
          {
            $$= new (YYTHD->mem_root) Item_insert_value(Lex->current_context(),
                                                        $3);
          }
        | interval_expr interval '+' expr
          /* we cannot put interval before - */
          { $$= new (YYTHD->mem_root) Item_date_add_interval($4,$1,$2,0); }
        | interval_expr
          {
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            if ($1->type() != Item::ROW_ITEM)
            {
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              my_parse_error(ER(ER_SYNTAX_ERROR));
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              MYSQL_YYABORT;
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            }
            $$= new (YYTHD->mem_root) Item_func_interval((Item_row *)$1);
          }
        ;

/*
  Function call syntax using official SQL 2003 keywords.
  Because the function name is an official token,
  a dedicated grammar rule is needed in the parser.
  There is no potential for conflicts
*/
function_call_keyword:
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          CHAR_SYM '(' expr_list ')'
          { $$= new (YYTHD->mem_root) Item_func_char(*$3); }
        | CHAR_SYM '(' expr_list USING charset_name ')'
          { $$= new (YYTHD->mem_root) Item_func_char(*$3, $5); }
        | CURRENT_USER optional_braces
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          {
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            $$= new (YYTHD->mem_root) Item_func_current_user(Lex->current_context());
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            Lex->safe_to_cache_query= 0;
          }
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        | DATE_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_date_typecast($3); }
        | DAY_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_dayofmonth($3); }
        | HOUR_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_hour($3); }
        | INSERT '(' expr ',' expr ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_insert($3,$5,$7,$9); }
        | LEFT '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_left($3,$5); }
        | MINUTE_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_minute($3); }
        | MONTH_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_month($3); }
        | RIGHT '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_right($3,$5); }
        | SECOND_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_second($3); }
        | TIME_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_time_typecast($3); }
        | TIMESTAMP '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_datetime_typecast($3); }
        | TIMESTAMP '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_add_time($3, $5, 1, 0); }
        | TRIM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_trim($3); }
        | TRIM '(' LEADING expr FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_ltrim($6,$4); }
        | TRIM '(' TRAILING expr FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_rtrim($6,$4); }
        | TRIM '(' BOTH expr FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_trim($6,$4); }
        | TRIM '(' LEADING FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_ltrim($5); }
        | TRIM '(' TRAILING FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_rtrim($5); }
        | TRIM '(' BOTH FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_trim($5); }
        | TRIM '(' expr FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_trim($5,$3); }
        | USER '(' ')'
          {
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            $$= new (YYTHD->mem_root) Item_func_user();
            Lex->safe_to_cache_query=0;
6995
          }
6996 6997
        | YEAR_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_year($3); }
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        ;

/*
  Function calls using non reserved keywords, with special syntaxic forms.
  Dedicated grammar rules are needed because of the syntax,
  but also have the potential to cause incompatibilities with other
  parts of the language.
  MAINTAINER:
  The only reasons a function should be added here are:
  - for compatibility reasons with another SQL syntax (CURDATE),
  - for typing reasons (GET_FORMAT)
  Any other 'Syntaxic sugar' enhancements should be *STRONGLY*
  discouraged.
*/
function_call_nonkeyword:
7013 7014
          ADDDATE_SYM '(' expr ',' expr ')'
          {
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            $$= new (YYTHD->mem_root) Item_date_add_interval($3, $5,
                                                             INTERVAL_DAY, 0);
          }
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        | ADDDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
          { $$= new (YYTHD->mem_root) Item_date_add_interval($3, $6, $7, 0); }
        | CURDATE optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_curdate_local();
            Lex->safe_to_cache_query=0;
          }
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        | CURTIME optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_curtime_local();
            Lex->safe_to_cache_query=0;
          }
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        | CURTIME '(' expr ')'
          {
            $$= new (YYTHD->mem_root) Item_func_curtime_local($3);
            Lex->safe_to_cache_query=0;
          }
        | DATE_ADD_INTERVAL '(' expr ',' interval_expr interval ')'
          { $$= new (YYTHD->mem_root) Item_date_add_interval($3,$5,$6,0); }
        | DATE_SUB_INTERVAL '(' expr ',' interval_expr interval ')'
          { $$= new (YYTHD->mem_root) Item_date_add_interval($3,$5,$6,1); }
        | EXTRACT_SYM '(' interval FROM expr ')'
          { $$=new (YYTHD->mem_root) Item_extract( $3, $5); }
        | GET_FORMAT '(' date_time_type  ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_get_format($3, $5); }
        | NOW_SYM optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_now_local();
            Lex->safe_to_cache_query=0;
          }
7048 7049
        | NOW_SYM '(' expr ')'
          {
7050 7051 7052
            $$= new (YYTHD->mem_root) Item_func_now_local($3);
            Lex->safe_to_cache_query=0;
          }
7053 7054 7055 7056
        | POSITION_SYM '(' bit_expr IN_SYM expr ')'
          { $$ = new (YYTHD->mem_root) Item_func_locate($5,$3); }
        | SUBDATE_SYM '(' expr ',' expr ')'
          {
7057 7058 7059
            $$= new (YYTHD->mem_root) Item_date_add_interval($3, $5,
                                                             INTERVAL_DAY, 1);
          }
7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070
        | SUBDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
          { $$= new (YYTHD->mem_root) Item_date_add_interval($3, $6, $7, 1); }
        | SUBSTRING '(' expr ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_substr($3,$5,$7); }
        | SUBSTRING '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_substr($3,$5); }
        | SUBSTRING '(' expr FROM expr FOR_SYM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_substr($3,$5,$7); }
        | SUBSTRING '(' expr FROM expr ')'
          { $$= new (YYTHD->mem_root) Item_func_substr($3,$5); }
        | SYSDATE optional_braces
7071 7072
          {
            if (global_system_variables.sysdate_is_now == 0)
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              $$= new (YYTHD->mem_root) Item_func_sysdate_local();
            else
              $$= new (YYTHD->mem_root) Item_func_now_local();
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            Lex->safe_to_cache_query=0;
          }
7078
        | SYSDATE '(' expr ')'
7079 7080
          {
            if (global_system_variables.sysdate_is_now == 0)
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              $$= new (YYTHD->mem_root) Item_func_sysdate_local($3);
            else
              $$= new (YYTHD->mem_root) Item_func_now_local($3);
7084 7085
            Lex->safe_to_cache_query=0;
          }
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        | TIMESTAMP_ADD '(' interval_time_st ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_date_add_interval($7,$5,$3,0); }
        | TIMESTAMP_DIFF '(' interval_time_st ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_timestamp_diff($5,$7,$3); }
        | UTC_DATE_SYM optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_curdate_utc();
            Lex->safe_to_cache_query=0;
          }
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        | UTC_TIME_SYM optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_curtime_utc();
            Lex->safe_to_cache_query=0;
          }
7100 7101
        | UTC_TIMESTAMP_SYM optional_braces
          {
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            $$= new (YYTHD->mem_root) Item_func_now_utc();
            Lex->safe_to_cache_query=0;
          }
        ;
7106

7107
/*
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7108
  Functions calls using a non reserved keyword, and using a regular syntax.
7109 7110 7111 7112
  Because the non reserved keyword is used in another part of the grammar,
  a dedicated rule is needed here.
*/
function_call_conflict:
7113
          ASCII_SYM '(' expr ')'
7114
          { $$= new (YYTHD->mem_root) Item_func_ascii($3); }
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        | CHARSET '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_charset($3); }
        | COALESCE '(' expr_list ')'
          { $$= new (YYTHD->mem_root) Item_func_coalesce(* $3); }
        | COLLATION_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_collation($3); }
        | DATABASE '(' ')'
          {
            $$= new (YYTHD->mem_root) Item_func_database();
7124
            Lex->safe_to_cache_query=0;
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          }
        | IF '(' expr ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_if($3,$5,$7); }
        | MICROSECOND_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_microsecond($3); }
        | MOD_SYM '(' expr ',' expr ')'
          { $$ = new (YYTHD->mem_root) Item_func_mod( $3, $5); }
        | OLD_PASSWORD '(' expr ')'
          { $$=  new (YYTHD->mem_root) Item_func_old_password($3); }
        | PASSWORD '(' expr ')'
          {
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            THD *thd= YYTHD;
            Item* i1;
            if (thd->variables.old_passwords)
              i1= new (thd->mem_root) Item_func_old_password($3);
            else
              i1= new (thd->mem_root) Item_func_password($3);
            $$= i1;
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          }
        | QUARTER_SYM '(' expr ')'
          { $$ = new (YYTHD->mem_root) Item_func_quarter($3); }
        | REPEAT_SYM '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_repeat($3,$5); }
        | REPLACE '(' expr ',' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_replace($3,$5,$7); }
        | TRUNCATE_SYM '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_round($3,$5,1); }
        | WEEK_SYM '(' expr ')'
          {
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            THD *thd= YYTHD;
            Item *i1= new (thd->mem_root) Item_int((char*) "0",
                                           thd->variables.default_week_format,
                                                   1);

            $$= new (thd->mem_root) Item_func_week($3, i1);
          }
7161 7162
        | WEEK_SYM '(' expr ',' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_week($3,$5); }
7163
        | geometry_function
7164
          {
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#ifdef HAVE_SPATIAL
            $$= $1;
#else
            my_error(ER_FEATURE_DISABLED, MYF(0),
                     sym_group_geom.name, sym_group_geom.needed_define);
7170
            MYSQL_YYABORT;
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#endif
          }
        ;

geometry_function:
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          CONTAINS_SYM '(' expr ',' expr ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_rel($3, $5,
                                               Item_func::SP_CONTAINS_FUNC));
          }
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        | GEOMETRYCOLLECTION '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_geometrycollection,
                           Geometry::wkb_point));
          }
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        | LINESTRING '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_linestring,
                           Geometry::wkb_point));
          }
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        | MULTILINESTRING '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multilinestring,
                           Geometry::wkb_linestring));
          }
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        | MULTIPOINT '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multipoint,
                           Geometry::wkb_point));
          }
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        | MULTIPOLYGON '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multipolygon,
                           Geometry::wkb_polygon));
          }
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        | POINT_SYM '(' expr ',' expr ')'
          { $$= GEOM_NEW(YYTHD, Item_func_point($3,$5)); }
        | POLYGON '(' expr_list ')'
          {
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            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
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                           Geometry::wkb_polygon,
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                           Geometry::wkb_linestring));
          }
        ;

/*
  Regular function calls.
  The function name is *not* a token, and therefore is guaranteed to not
  introduce side effects to the language in general.
  MAINTAINER:
  All the new functions implemented for new features should fit into
  this category. The place to implement the function itself is
  in sql/item_create.cc
*/
function_call_generic:
7238
          IDENT_sys '('
7239
          {
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#ifdef HAVE_DLOPEN
            udf_func *udf= 0;
            LEX *lex= Lex;
            if (using_udf_functions &&
                (udf= find_udf($1.str, $1.length)) &&
                udf->type == UDFTYPE_AGGREGATE)
7246
            {
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              if (lex->current_select->inc_in_sum_expr())
              {
                my_parse_error(ER(ER_SYNTAX_ERROR));
                MYSQL_YYABORT;
              }
7252
            }
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            /* Temporary placing the result of find_udf in $3 */
            $<udf>$= udf;
7255 7256
#endif
          }
7257
          opt_udf_expr_list ')'
7258
          {
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            THD *thd= YYTHD;
            Create_func *builder;
            Item *item= NULL;
7262

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            /*
              Implementation note:
              names are resolved with the following order:
              - MySQL native functions,
              - User Defined Functions,
              - Stored Functions (assuming the current <use> database)
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              This will be revised with WL#2128 (SQL PATH)
            */
            builder= find_native_function_builder(thd, $1);
            if (builder)
            {
              item= builder->create(thd, $1, $4);
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            }
            else
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            {
#ifdef HAVE_DLOPEN
              /* Retrieving the result of find_udf */
              udf_func *udf= $<udf>3;

              if (udf)
              {
                if (udf->type == UDFTYPE_AGGREGATE)
                {
                  Select->in_sum_expr--;
                }

                item= Create_udf_func::s_singleton.create(thd, udf, $4);
              }
              else
7293
#endif
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              {
                builder= find_qualified_function_builder(thd);
                DBUG_ASSERT(builder);
                item= builder->create(thd, $1, $4);
              }
            }

            if (! ($$= item))
7302
            {
7303
              MYSQL_YYABORT;
7304
            }
7305
          }
7306
        | ident '.' ident '(' opt_expr_list ')'
7307
          {
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            THD *thd= YYTHD;
            Create_qfunc *builder;
            Item *item= NULL;
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            /*
              The following in practice calls:
              <code>Create_sp_func::create()</code>
              and builds a stored function.

              However, it's important to maintain the interface between the
              parser and the implementation in item_create.cc clean,
              since this will change with WL#2128 (SQL PATH):
              - INFORMATION_SCHEMA.version() is the SQL 99 syntax for the native
              function version(),
              - MySQL.version() is the SQL 2003 syntax for the native function
              version() (a vendor can specify any schema).
            */
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            builder= find_qualified_function_builder(thd);
            DBUG_ASSERT(builder);
            item= builder->create(thd, $1, $3, true, $5);
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            if (! ($$= item))
            {
              MYSQL_YYABORT;
            }
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          }
        ;
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7337
fulltext_options:
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          opt_natural_language_mode opt_query_expansion
          { $$= $1 | $2; }
        | IN_SYM BOOLEAN_SYM MODE_SYM
          { $$= FT_BOOL; }
        ;

opt_natural_language_mode:
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          /* nothing */                         { $$= FT_NL; }
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        | IN_SYM NATURAL LANGUAGE_SYM MODE_SYM  { $$= FT_NL; }
        ;

opt_query_expansion:
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          /* nothing */                         { $$= 0;         }
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        | WITH QUERY_SYM EXPANSION_SYM          { $$= FT_EXPAND; }
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        ;

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opt_udf_expr_list:
        /* empty */     { $$= NULL; }
        | udf_expr_list { $$= $1; }
        ;

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udf_expr_list:
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          udf_expr
          {
            $$= new (YYTHD->mem_root) List<Item>;
            $$->push_back($1);
          }
        | udf_expr_list ',' udf_expr
          {
            $1->push_back($3);
            $$= $1;
          }
        ;
7371 7372

udf_expr:
7373
          remember_name expr remember_end select_alias
7374
          {
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            /*
             Use Item::name as a storage for the attribute value of user
             defined function argument. It is safe to use Item::name
             because the syntax will not allow having an explicit name here.
             See WL#1017 re. udf attributes.
            */
            if ($4.str)
            {
              $2->is_autogenerated_name= FALSE;
              $2->set_name($4.str, $4.length, system_charset_info);
            }
            else
              $2->set_name($1, (uint) ($3 - $1), YYTHD->charset());
            $$= $2;
7389
          }
7390
        ;
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7391 7392

sum_expr:
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          AVG_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_avg($3); }
        | AVG_SYM '(' DISTINCT in_sum_expr ')'
          { $$=new Item_sum_avg_distinct($4); }
        | BIT_AND  '(' in_sum_expr ')'
          { $$=new Item_sum_and($3); }
        | BIT_OR  '(' in_sum_expr ')'
          { $$=new Item_sum_or($3); }
        | BIT_XOR  '(' in_sum_expr ')'
          { $$=new Item_sum_xor($3); }
        | COUNT_SYM '(' opt_all '*' ')'
          { $$=new Item_sum_count(new Item_int((int32) 0L,1)); }
        | COUNT_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_count($3); }
        | COUNT_SYM '(' DISTINCT
          { Select->in_sum_expr++; }
          expr_list
          { Select->in_sum_expr--; }
          ')'
          { $$=new Item_sum_count_distinct(* $5); }
        | MIN_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_min($3); }
        /*
          According to ANSI SQL, DISTINCT is allowed and has
          no sense inside MIN and MAX grouping functions; so MIN|MAX(DISTINCT ...)
          is processed like an ordinary MIN | MAX()
        */
        | MIN_SYM '(' DISTINCT in_sum_expr ')'
          { $$=new Item_sum_min($4); }
        | MAX_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_max($3); }
        | MAX_SYM '(' DISTINCT in_sum_expr ')'
          { $$=new Item_sum_max($4); }
        | STD_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_std($3, 0); }
        | VARIANCE_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_variance($3, 0); }
        | STDDEV_SAMP_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_std($3, 1); }
        | VAR_SAMP_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_variance($3, 1); }
        | SUM_SYM '(' in_sum_expr ')'
          { $$=new Item_sum_sum($3); }
        | SUM_SYM '(' DISTINCT in_sum_expr ')'
          { $$=new Item_sum_sum_distinct($4); }
        | GROUP_CONCAT_SYM '(' opt_distinct
          { Select->in_sum_expr++; }
          expr_list opt_gorder_clause
          opt_gconcat_separator
          ')'
          {
7444
            SELECT_LEX *sel= Select;
7445 7446
            sel->in_sum_expr--;
            $$=new Item_func_group_concat(Lex->current_context(), $3, $5,
7447
                                          sel->gorder_list, $7);
7448 7449 7450
            $5->empty();
          }
        ;
7451

7452 7453 7454 7455 7456 7457
variable:
          '@'
          {
            if (! Lex->parsing_options.allows_variable)
            {
              my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
7458
              MYSQL_YYABORT;
7459 7460 7461 7462 7463 7464
            }
          }
          variable_aux
          {
            $$= $3;
          }
7465
        ;
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variable_aux:
          ident_or_text SET_VAR expr
          {
            $$= new Item_func_set_user_var($1, $3);
            LEX *lex= Lex;
            lex->uncacheable(UNCACHEABLE_RAND);
          }
        | ident_or_text
          {
            $$= new Item_func_get_user_var($1);
            LEX *lex= Lex;
            lex->uncacheable(UNCACHEABLE_RAND);
          }
        | '@' opt_var_ident_type ident_or_text opt_component
          {
            if ($3.str && $4.str && check_reserved_words(&$3))
            {
7484 7485
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
7486 7487
            }
            if (!($$= get_system_var(YYTHD, $2, $3, $4)))
7488
              MYSQL_YYABORT;
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          }
        ;

7492
opt_distinct:
7493 7494 7495
          /* empty */ { $$ = 0; }
        | DISTINCT    { $$ = 1; }
        ;
7496 7497

opt_gconcat_separator:
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          /* empty */
            {
              $$= new (YYTHD->mem_root) String(",", 1, &my_charset_latin1);
            }
        | SEPARATOR_SYM text_string { $$ = $2; }
        ;
7504 7505

opt_gorder_clause:
7506 7507
          /* empty */
          {
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7508
            Select->gorder_list = NULL;
7509 7510
          }
        | order_clause
7511
          {
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            SELECT_LEX *select= Select;
            select->gorder_list=
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              (SQL_LIST*) sql_memdup((char*) &select->order_list,
                                     sizeof(st_sql_list));
            select->order_list.empty();
          }
        ;
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in_sum_expr:
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          opt_all
          {
            LEX *lex= Lex;
            if (lex->current_select->inc_in_sum_expr())
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
          }
          expr
          {
            Select->in_sum_expr--;
            $$= $3;
          }
        ;
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cast_type:
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          BINARY opt_len
          { $$=ITEM_CAST_CHAR; Lex->charset= &my_charset_bin; Lex->dec= 0; }
        | CHAR_SYM opt_len opt_binary
          { $$=ITEM_CAST_CHAR; Lex->dec= 0; }
        | NCHAR_SYM opt_len
          { $$=ITEM_CAST_CHAR; Lex->charset= national_charset_info; Lex->dec=0; }
        | SIGNED_SYM
          { $$=ITEM_CAST_SIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | SIGNED_SYM INT_SYM
          { $$=ITEM_CAST_SIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | UNSIGNED
          { $$=ITEM_CAST_UNSIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | UNSIGNED INT_SYM
          { $$=ITEM_CAST_UNSIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DATE_SYM
          { $$=ITEM_CAST_DATE; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | TIME_SYM
          { $$=ITEM_CAST_TIME; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DATETIME
          { $$=ITEM_CAST_DATETIME; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DECIMAL_SYM float_options
          { $$=ITEM_CAST_DECIMAL; Lex->charset= NULL; }
        ;
7561

7562
opt_expr_list:
7563 7564 7565
          /* empty */ { $$= NULL; }
        | expr_list { $$= $1;}
        ;
7566

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expr_list:
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          expr
          {
            $$= new (YYTHD->mem_root) List<Item>;
            $$->push_back($1);
          }
        | expr_list ',' expr
          {
            $1->push_back($3);
            $$= $1;
          }
        ;
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ident_list_arg:
          ident_list          { $$= $1; }
7582 7583
        | '(' ident_list ')'  { $$= $2; }
        ;
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ident_list:
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          simple_ident
          {
            $$= new (YYTHD->mem_root) List<Item>;
            $$->push_back($1);
          }
        | ident_list ',' simple_ident
          {
            $1->push_back($3);
            $$= $1;
          }
        ;
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opt_expr:
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          /* empty */    { $$= NULL; }
        | expr           { $$= $1; }
        ;
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opt_else:
7604 7605 7606
          /* empty */  { $$= NULL; }
        | ELSE expr    { $$= $2; }
        ;
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when_list:
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          WHEN_SYM expr THEN_SYM expr
          {
            $$= new List<Item>;
            $$->push_back($2);
            $$->push_back($4);
          }
        | when_list WHEN_SYM expr THEN_SYM expr
          {
            $1->push_back($3);
            $1->push_back($5);
            $$= $1;
          }
        ;
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/* Warning - may return NULL in case of incomplete SELECT */
7624
table_ref:
7625
          table_factor { $$=$1; }
7626
        | join_table
7627
          {
7628
            LEX *lex= Lex;
7629
            if (!($$= lex->current_select->nest_last_join(lex->thd)))
7630
              MYSQL_YYABORT;
7631
          }
7632 7633
        ;

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join_table_list:
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          derived_table_list { MYSQL_YYABORT_UNLESS($$=$1); }
        ;
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/* Warning - may return NULL in case of incomplete SELECT */
derived_table_list:
7640
          table_ref { $$=$1; }
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        | derived_table_list ',' table_ref
          {
7643
            MYSQL_YYABORT_UNLESS($1 && ($$=$3));
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          }
7645 7646
        ;

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/*
  Notice that JOIN is a left-associative operation, and it must be parsed
  as such, that is, the parser must process first the left join operand
  then the right one. Such order of processing ensures that the parser
  produces correct join trees which is essential for semantic analysis
  and subsequent optimization phases.
*/
7654
join_table:
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          /* INNER JOIN variants */
          /*
            Use %prec to evaluate production 'table_ref' before 'normal_join'
            so that [INNER | CROSS] JOIN is properly nested as other
            left-associative joins.
          */
          table_ref normal_join table_ref %prec TABLE_REF_PRIORITY
7662
          { MYSQL_YYABORT_UNLESS($1 && ($$=$3)); }
7663 7664 7665
        | table_ref STRAIGHT_JOIN table_factor
          { MYSQL_YYABORT_UNLESS($1 && ($$=$3)); $3->straight=1; }
        | table_ref normal_join table_ref
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          ON
          {
7668
            MYSQL_YYABORT_UNLESS($1 && $3);
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            /* Change the current name resolution context to a local context. */
7670
            if (push_new_name_resolution_context(YYTHD, $1, $3))
7671
              MYSQL_YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
7675
          {
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            add_join_on($3,$6);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
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          }
        | table_ref STRAIGHT_JOIN table_factor
          ON
          {
7683
            MYSQL_YYABORT_UNLESS($1 && $3);
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            /* Change the current name resolution context to a local context. */
7685
            if (push_new_name_resolution_context(YYTHD, $1, $3))
7686
              MYSQL_YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
          {
            $3->straight=1;
            add_join_on($3,$6);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
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          }
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        | table_ref normal_join table_ref
          USING
          {
7699
            MYSQL_YYABORT_UNLESS($1 && $3);
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          }
          '(' using_list ')'
7702
          { add_join_natural($1,$3,$7,Select); $$=$3; }
7703 7704
        | table_ref NATURAL JOIN_SYM table_factor
          {
7705
            MYSQL_YYABORT_UNLESS($1 && ($$=$4));
7706
            add_join_natural($1,$4,NULL,Select);
7707 7708
          }

7709 7710
          /* LEFT JOIN variants */
        | table_ref LEFT opt_outer JOIN_SYM table_ref
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          ON
          {
7713
            MYSQL_YYABORT_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
7715
            if (push_new_name_resolution_context(YYTHD, $1, $5))
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              MYSQL_YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
7720
          {
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            add_join_on($5,$8);
            Lex->pop_context();
            $5->outer_join|=JOIN_TYPE_LEFT;
            $$=$5;
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            Select->parsing_place= NO_MATTER;
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          }
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        | table_ref LEFT opt_outer JOIN_SYM table_factor
          {
7729
            MYSQL_YYABORT_UNLESS($1 && $5);
7730 7731
          }
          USING '(' using_list ')'
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          { 
            add_join_natural($1,$5,$9,Select); 
            $5->outer_join|=JOIN_TYPE_LEFT; 
            $$=$5; 
          }
7737 7738
        | table_ref NATURAL LEFT opt_outer JOIN_SYM table_factor
          {
7739
            MYSQL_YYABORT_UNLESS($1 && $6);
7740 7741 7742 7743
            add_join_natural($1,$6,NULL,Select);
            $6->outer_join|=JOIN_TYPE_LEFT;
            $$=$6;
          }
7744

7745 7746
          /* RIGHT JOIN variants */
        | table_ref RIGHT opt_outer JOIN_SYM table_ref
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          ON
          {
7749
            MYSQL_YYABORT_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
7751
            if (push_new_name_resolution_context(YYTHD, $1, $5))
7752
              MYSQL_YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
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7756
          {
7757
            LEX *lex= Lex;
7758
            if (!($$= lex->current_select->convert_right_join()))
7759
              MYSQL_YYABORT;
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            add_join_on($$, $8);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
7763
          }
7764 7765
        | table_ref RIGHT opt_outer JOIN_SYM table_factor
          {
7766
            MYSQL_YYABORT_UNLESS($1 && $5);
7767 7768
          }
          USING '(' using_list ')'
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          {
7770
            LEX *lex= Lex;
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            if (!($$= lex->current_select->convert_right_join()))
7772
              MYSQL_YYABORT;
7773
            add_join_natural($$,$5,$9,Select);
7774
          }
7775 7776
        | table_ref NATURAL RIGHT opt_outer JOIN_SYM table_factor
          {
7777
            MYSQL_YYABORT_UNLESS($1 && $6);
7778 7779
            add_join_natural($6,$1,NULL,Select);
            LEX *lex= Lex;
7780
            if (!($$= lex->current_select->convert_right_join()))
7781
              MYSQL_YYABORT;
7782 7783
          }
        ;
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normal_join:
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          JOIN_SYM {}
        | INNER_SYM JOIN_SYM {}
        | CROSS JOIN_SYM {}
        ;
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/* Warning - may return NULL in case of incomplete SELECT */
7792
table_factor:
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          {
            SELECT_LEX *sel= Select;
            sel->table_join_options= 0;
          }
          table_ident opt_table_alias opt_key_definition
          {
            if (!($$= Select->add_table_to_list(YYTHD, $2, $3,
                                                Select->get_table_join_options(),
                                                Lex->lock_option,
                                                Select->pop_index_hints())))
              MYSQL_YYABORT;
            Select->add_joined_table($$);
          }
        | '{' ident table_ref LEFT OUTER JOIN_SYM table_ref
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          ON
          {
            /* Change the current name resolution context to a local context. */
7810
            if (push_new_name_resolution_context(YYTHD, $3, $7))
7811
              MYSQL_YYABORT;
7812

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          }
          expr '}'
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          {
            LEX *lex= Lex;
7817
            MYSQL_YYABORT_UNLESS($3 && $7);
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            add_join_on($7,$10);
            Lex->pop_context();
            $7->outer_join|=JOIN_TYPE_LEFT;
            $$=$7;
7822
            if (!($$= lex->current_select->nest_last_join(lex->thd)))
7823
              MYSQL_YYABORT;
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          }
7825
        | select_derived_init get_select_lex select_derived2
7826
          {
7827
            LEX *lex= Lex;
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            SELECT_LEX *sel= lex->current_select;
            if ($1)
            {
7831 7832
              if (sel->set_braces(1))
              {
7833
                my_parse_error(ER(ER_SYNTAX_ERROR));
7834 7835
                MYSQL_YYABORT;
              }
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              /* select in braces, can't contain global parameters */
7837
              if (sel->master_unit()->fake_select_lex)
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                sel->master_unit()->global_parameters=
                   sel->master_unit()->fake_select_lex;
            }
            if ($2->init_nested_join(lex->thd))
7842
              MYSQL_YYABORT;
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7843
            $$= 0;
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            /* incomplete derived tables return NULL, we must be
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               nested in select_derived rule to be here. */
7846
          }
7847
        | '(' get_select_lex select_derived union_opt ')' opt_table_alias
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          {
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            /* Use $2 instead of Lex->current_select as derived table will
               alter value of Lex->current_select. */

            if (!($3 || $6) && $2->embedding &&
                !$2->embedding->nested_join->join_list.elements)
            {
              /* we have a derived table ($3 == NULL) but no alias,
                 Since we are nested in further parentheses so we
                 can pass NULL to the outer level parentheses
                 Permits parsing of "((((select ...))) as xyz)" */
              $$= 0;
            }
            else if (!$3)
            {
              /* Handle case of derived table, alias may be NULL if there
                 are no outer parentheses, add_table_to_list() will throw
                 error in this case */
              LEX *lex=Lex;
              SELECT_LEX *sel= lex->current_select;
              SELECT_LEX_UNIT *unit= sel->master_unit();
              lex->current_select= sel= unit->outer_select();
              if (!($$= sel->add_table_to_list(lex->thd,
                                               new Table_ident(unit), $6, 0,
                                               TL_READ)))

                MYSQL_YYABORT;
              sel->add_joined_table($$);
              lex->pop_context();
            }
            else if ($4 || $6)
            {
              /* simple nested joins cannot have aliases or unions */
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            else
              $$= $3;
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          }
        ;
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7888

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/* handle contents of parentheses in join expression */
7890
select_derived:
7891 7892
          get_select_lex
          {
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            LEX *lex= Lex;
            if ($1->init_nested_join(lex->thd))
7895
              MYSQL_YYABORT;
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          }
          derived_table_list
          {
            LEX *lex= Lex;
            /* for normal joins, $3 != NULL and end_nested_join() != NULL,
               for derived tables, both must equal NULL */
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7902

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            if (!($$= $1->end_nested_join(lex->thd)) && $3)
7904
              MYSQL_YYABORT;
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            if (!$3 && $$)
            {
7907
              my_parse_error(ER(ER_SYNTAX_ERROR));
7908
              MYSQL_YYABORT;
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            }
          }
7911
        ;
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select_derived2:
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          {
            LEX *lex= Lex;
            lex->derived_tables|= DERIVED_SUBQUERY;
            if (!lex->expr_allows_subselect ||
                lex->sql_command == (int)SQLCOM_PURGE)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE ||
                mysql_new_select(lex, 1))
              MYSQL_YYABORT;
            mysql_init_select(lex);
            lex->current_select->linkage= DERIVED_TABLE_TYPE;
            lex->current_select->parsing_place= SELECT_LIST;
          }
          select_options select_item_list
          {
            Select->parsing_place= NO_MATTER;
          }
          opt_select_from
7935
        ;
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get_select_lex:
7938
          /* Empty */ { $$= Select; }
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        ;

select_derived_init:
          SELECT_SYM
          {
            LEX *lex= Lex;
7945 7946 7947 7948

            if (! lex->parsing_options.allows_derived)
            {
              my_error(ER_VIEW_SELECT_DERIVED, MYF(0));
7949
              MYSQL_YYABORT;
7950 7951
            }

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            SELECT_LEX *sel= lex->current_select;
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            TABLE_LIST *embedding;
            if (!sel->embedding || sel->end_nested_join(lex->thd))
7955
            {
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              /* we are not in parentheses */
7957
              my_parse_error(ER(ER_SYNTAX_ERROR));
7958 7959
              MYSQL_YYABORT;
            }
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            embedding= Select->embedding;
            $$= embedding &&
                !embedding->nested_join->join_list.elements;
            /* return true if we are deeply nested */
          }
        ;

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opt_outer:
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          /* empty */ {}
        | OUTER {}
        ;
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7971

7972
index_hint_clause:
7973
          /* empty */
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          {
7975 7976
            $$= global_system_variables.old_mode ? 
                  INDEX_HINT_MASK_JOIN : INDEX_HINT_MASK_ALL; 
7977 7978 7979 7980 7981
          }
        | FOR_SYM JOIN_SYM      { $$= INDEX_HINT_MASK_JOIN;  }
        | FOR_SYM ORDER_SYM BY  { $$= INDEX_HINT_MASK_ORDER; }
        | FOR_SYM GROUP_SYM BY  { $$= INDEX_HINT_MASK_GROUP; }
        ;
7982 7983

index_hint_type:
7984 7985 7986
          FORCE_SYM  { $$= INDEX_HINT_FORCE; }
        | IGNORE_SYM { $$= INDEX_HINT_IGNORE; } 
        ;
7987 7988

index_hint_definition:
7989
          index_hint_type key_or_index index_hint_clause
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          {
7991 7992 7993 7994 7995 7996 7997 7998
            Select->set_index_hint_type($1, $3);
          }
          '(' key_usage_list ')'
        | USE_SYM key_or_index index_hint_clause
          {
            Select->set_index_hint_type(INDEX_HINT_USE, $3);
          }
          '(' opt_key_usage_list ')'
7999
       ;
8000 8001

index_hints_list:
8002 8003 8004
          index_hint_definition
        | index_hints_list index_hint_definition
        ;
8005 8006

opt_index_hints_list:
8007 8008 8009
          /* empty */
        | { Select->alloc_index_hints(YYTHD); } index_hints_list
        ;
8010

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opt_key_definition:
8012 8013 8014
          {  Select->clear_index_hints(); }
          opt_index_hints_list
        ;
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8016
opt_key_usage_list:
8017 8018 8019
          /* empty */ { Select->add_index_hint(YYTHD, NULL, 0); }
        | key_usage_list {}
        ;
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8020

8021
key_usage_element:
8022 8023 8024 8025
          ident
          { Select->add_index_hint(YYTHD, $1.str, $1.length); }
        | PRIMARY_SYM
          { Select->add_index_hint(YYTHD, (char *)"PRIMARY", 7); }
8026
        ;
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8028
key_usage_list:
8029 8030
          key_usage_element
        | key_usage_list ',' key_usage_element
8031
        ;
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using_list:
8034 8035
          ident
          {
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            if (!($$= new List<String>))
8037
              MYSQL_YYABORT;
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            $$->push_back(new (YYTHD->mem_root)
                              String((const char *) $1.str, $1.length,
                                      system_charset_info));
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          }
        | using_list ',' ident
          {
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            $1->push_back(new (YYTHD->mem_root)
                              String((const char *) $3.str, $3.length,
                                      system_charset_info));
            $$= $1;
8048 8049
          }
        ;
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interval:
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          interval_time_st {}
        | DAY_HOUR_SYM           { $$=INTERVAL_DAY_HOUR; }
        | DAY_MICROSECOND_SYM    { $$=INTERVAL_DAY_MICROSECOND; }
        | DAY_MINUTE_SYM         { $$=INTERVAL_DAY_MINUTE; }
        | DAY_SECOND_SYM         { $$=INTERVAL_DAY_SECOND; }
        | HOUR_MICROSECOND_SYM   { $$=INTERVAL_HOUR_MICROSECOND; }
        | HOUR_MINUTE_SYM        { $$=INTERVAL_HOUR_MINUTE; }
        | HOUR_SECOND_SYM        { $$=INTERVAL_HOUR_SECOND; }
        | MICROSECOND_SYM        { $$=INTERVAL_MICROSECOND; }
        | MINUTE_MICROSECOND_SYM { $$=INTERVAL_MINUTE_MICROSECOND; }
        | MINUTE_SECOND_SYM      { $$=INTERVAL_MINUTE_SECOND; }
        | SECOND_MICROSECOND_SYM { $$=INTERVAL_SECOND_MICROSECOND; }
        | YEAR_MONTH_SYM         { $$=INTERVAL_YEAR_MONTH; }
        ;
8066 8067

interval_time_st:
8068 8069 8070 8071 8072 8073 8074 8075 8076
          DAY_SYM         { $$=INTERVAL_DAY; }
        | WEEK_SYM        { $$=INTERVAL_WEEK; }
        | HOUR_SYM        { $$=INTERVAL_HOUR; }
        | FRAC_SECOND_SYM { $$=INTERVAL_MICROSECOND; }
        | MINUTE_SYM      { $$=INTERVAL_MINUTE; }
        | MONTH_SYM       { $$=INTERVAL_MONTH; }
        | QUARTER_SYM     { $$=INTERVAL_QUARTER; }
        | SECOND_SYM      { $$=INTERVAL_SECOND; }
        | YEAR_SYM        { $$=INTERVAL_YEAR; }
8077
        ;
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8079
date_time_type:
8080 8081 8082 8083
          DATE_SYM  {$$=MYSQL_TIMESTAMP_DATE;}
        | TIME_SYM  {$$=MYSQL_TIMESTAMP_TIME;}
        | DATETIME  {$$=MYSQL_TIMESTAMP_DATETIME;}
        | TIMESTAMP {$$=MYSQL_TIMESTAMP_DATETIME;}
8084
        ;
8085

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table_alias:
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          /* empty */
        | AS
        | EQ
        ;
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opt_table_alias:
8093 8094 8095 8096
          /* empty */ { $$=0; }
        | table_alias ident
          { $$= (LEX_STRING*) sql_memdup(&$2,sizeof(LEX_STRING)); }
        ;
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opt_all:
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          /* empty */
        | ALL
        ;
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where_clause:
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          /* empty */  { Select->where= 0; }
        | WHERE
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          {
            Select->parsing_place= IN_WHERE;
          }
          expr
8110
          {
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            SELECT_LEX *select= Select;
8112
            select->where= $3;
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            select->parsing_place= NO_MATTER;
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            if ($3)
              $3->top_level_item();
          }
        ;
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having_clause:
8120 8121 8122 8123
          /* empty */
        | HAVING
          {
            Select->parsing_place= IN_HAVING;
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          }
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          expr
          {
            SELECT_LEX *sel= Select;
            sel->having= $3;
            sel->parsing_place= NO_MATTER;
            if ($3)
              $3->top_level_item();
          }
        ;
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opt_escape:
8136
          ESCAPE_SYM simple_expr 
8137 8138 8139 8140
          {
            Lex->escape_used= TRUE;
            $$= $2;
          }
8141
        | /* empty */
8142
          {
8143
            Lex->escape_used= FALSE;
8144
            $$= ((YYTHD->variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) ?
8145
                 new Item_string("", 0, &my_charset_latin1) :
8146
                 new Item_string("\\", 1, &my_charset_latin1));
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          }
        ;
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/*
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   group by statement in select
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*/

group_clause:
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          /* empty */
        | GROUP_SYM BY group_list olap_opt
        ;
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group_list:
8160 8161 8162 8163 8164
          group_list ',' order_ident order_dir
          { if (add_group_to_list(YYTHD, $3,(bool) $4)) MYSQL_YYABORT; }
        | order_ident order_dir
          { if (add_group_to_list(YYTHD, $1,(bool) $2)) MYSQL_YYABORT; }
        ;
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8166
olap_opt:
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          /* empty */ {}
        | WITH CUBE_SYM
          {
            LEX *lex=Lex;
            if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
            {
              my_error(ER_WRONG_USAGE, MYF(0), "WITH CUBE",
                       "global union parameters");
              MYSQL_YYABORT;
            }
            lex->current_select->olap= CUBE_TYPE;
            my_error(ER_NOT_SUPPORTED_YET, MYF(0), "CUBE");
            MYSQL_YYABORT; /* To be deleted in 5.1 */
          }
        | WITH ROLLUP_SYM
          {
            LEX *lex= Lex;
            if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
            {
              my_error(ER_WRONG_USAGE, MYF(0), "WITH ROLLUP",
                       "global union parameters");
              MYSQL_YYABORT;
            }
            lex->current_select->olap= ROLLUP_TYPE;
          }
        ;
8193

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/*
  Order by statement in ALTER TABLE
*/

alter_order_clause:
          ORDER_SYM BY alter_order_list
        ;

alter_order_list:
          alter_order_list ',' alter_order_item
        | alter_order_item
        ;

alter_order_item:
          simple_ident_nospvar order_dir
          {
            THD *thd= YYTHD;
            bool ascending= ($2 == 1) ? true : false;
            if (add_order_to_list(thd, $1, ascending))
8213
              MYSQL_YYABORT;
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          }
        ;

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/*
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   Order by statement in select
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*/

8221
opt_order_clause:
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          /* empty */
        | order_clause
        ;
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order_clause:
8227
          ORDER_SYM BY
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          {
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            LEX *lex=Lex;
            SELECT_LEX *sel= lex->current_select;
            SELECT_LEX_UNIT *unit= sel-> master_unit();
            if (sel->linkage != GLOBAL_OPTIONS_TYPE &&
                sel->olap != UNSPECIFIED_OLAP_TYPE)
            {
              my_error(ER_WRONG_USAGE, MYF(0),
                       "CUBE/ROLLUP", "ORDER BY");
8237
              MYSQL_YYABORT;
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            }
            if (lex->sql_command != SQLCOM_ALTER_TABLE && !unit->fake_select_lex)
            {
              /*
                A query of the of the form (SELECT ...) ORDER BY order_list is
                executed in the same way as the query
                SELECT ... ORDER BY order_list
                unless the SELECT construct contains ORDER BY or LIMIT clauses.
                Otherwise we create a fake SELECT_LEX if it has not been created
                yet.
              */
              SELECT_LEX *first_sl= unit->first_select();
              if (!unit->is_union() &&
                  (first_sl->order_list.elements || 
                   first_sl->select_limit) &&            
                  unit->add_fake_select_lex(lex->thd))
                MYSQL_YYABORT;
            }
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          }
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          order_list
        ;
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order_list:
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          order_list ',' order_ident order_dir
          { if (add_order_to_list(YYTHD, $3,(bool) $4)) MYSQL_YYABORT; }
        | order_ident order_dir
          { if (add_order_to_list(YYTHD, $1,(bool) $2)) MYSQL_YYABORT; }
        ;
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order_dir:
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          /* empty */ { $$ =  1; }
        | ASC  { $$ =1; }
        | DESC { $$ =0; }
        ;
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8272

8273
opt_limit_clause_init:
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          /* empty */
          {
            LEX *lex= Lex;
            SELECT_LEX *sel= lex->current_select;
            sel->offset_limit= 0;
            sel->select_limit= 0;
          }
        | limit_clause {}
        ;
8283

8284
opt_limit_clause:
8285 8286 8287
          /* empty */ {}
        | limit_clause {}
        ;
8288

8289
limit_clause:
8290 8291
          LIMIT limit_options {}
        ;
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limit_options:
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          limit_option
          {
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            SELECT_LEX *sel= Select;
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            sel->select_limit= $1;
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            sel->offset_limit= 0;
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            sel->explicit_limit= 1;
          }
        | limit_option ',' limit_option
          {
            SELECT_LEX *sel= Select;
            sel->select_limit= $3;
            sel->offset_limit= $1;
            sel->explicit_limit= 1;
          }
        | limit_option OFFSET_SYM limit_option
          {
            SELECT_LEX *sel= Select;
            sel->select_limit= $1;
            sel->offset_limit= $3;
            sel->explicit_limit= 1;
          }
        ;

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limit_option:
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          param_marker
          {
            ((Item_param *) $1)->set_strict_type(INT_RESULT);
          }
8322
        | ULONGLONG_NUM { $$= new Item_uint($1.str, $1.length); }
8323
        | LONG_NUM      { $$= new Item_uint($1.str, $1.length); }
8324
        | NUM           { $$= new Item_uint($1.str, $1.length); }
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        ;
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delete_limit_clause:
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          /* empty */
          {
            LEX *lex=Lex;
            lex->current_select->select_limit= 0;
          }
        | LIMIT limit_option
          {
            SELECT_LEX *sel= Select;
            sel->select_limit= $2;
            sel->explicit_limit= 1;
          }
        ;
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ulong_num:
          NUM           { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        | HEX_NUM       { $$= (ulong) strtol($1.str, (char**) 0, 16); }
        | LONG_NUM      { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
        | ULONGLONG_NUM { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        | DECIMAL_NUM   { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
8347
        | FLOAT_NUM     { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        ;

real_ulong_num:
          NUM           { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        | HEX_NUM       { $$= (ulong) strtol($1.str, (char**) 0, 16); }
        | LONG_NUM      { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
        | ULONGLONG_NUM { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
8355
        | dec_num_error { MYSQL_YYABORT; }
8356
        ;
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ulonglong_num:
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          NUM           { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | ULONGLONG_NUM { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | LONG_NUM      { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | DECIMAL_NUM   { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | FLOAT_NUM     { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        ;
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8366
real_ulonglong_num:
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          NUM           { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | ULONGLONG_NUM { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | LONG_NUM      { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
8370
        | dec_num_error { MYSQL_YYABORT; }
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        ;

dec_num_error:
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          dec_num
          { my_parse_error(ER(ER_ONLY_INTEGERS_ALLOWED)); }
8376 8377 8378
        ;

dec_num:
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          DECIMAL_NUM
        | FLOAT_NUM
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        ;

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procedure_clause:
8384 8385 8386 8387
          /* empty */
        | PROCEDURE ident /* Procedure name */
          {
            LEX *lex=Lex;
8388 8389 8390 8391

            if (! lex->parsing_options.allows_select_procedure)
            {
              my_error(ER_VIEW_SELECT_CLAUSE, MYF(0), "PROCEDURE");
8392
              MYSQL_YYABORT;
8393 8394
            }

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            if (&lex->select_lex != lex->current_select)
            {
              my_error(ER_WRONG_USAGE, MYF(0), "PROCEDURE", "subquery");
              MYSQL_YYABORT;
            }
            lex->proc_list.elements=0;
            lex->proc_list.first=0;
            lex->proc_list.next= (uchar**) &lex->proc_list.first;
            if (add_proc_to_list(lex->thd, new Item_field(&lex->
8404 8405 8406
                                                          current_select->
                                                          context,
                                                          NULL,NULL,$2.str)))
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              MYSQL_YYABORT;
            Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
          }
          '(' procedure_list ')'
        ;
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procedure_list:
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          /* empty */ {}
        | procedure_list2 {}
        ;
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procedure_list2:
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          procedure_list2 ',' procedure_item
        | procedure_item
        ;
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procedure_item:
8424 8425
          remember_name expr remember_end
          {
8426 8427
            THD *thd= YYTHD;

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            if (add_proc_to_list(thd, $2))
              MYSQL_YYABORT;
            if (!$2->name)
8431
              $2->set_name($1, (uint) ($3 - $1), thd->charset());
8432 8433
          }
        ;
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select_var_list_init:
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          {
            LEX *lex=Lex;
            if (!lex->describe && (!(lex->result= new select_dumpvar())))
              MYSQL_YYABORT;
          }
          select_var_list
          {}
        ;
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select_var_list:
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          select_var_list ',' select_var_ident
        | select_var_ident {}
        ;
8449

8450
select_var_ident:  
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          '@' ident_or_text
          {
            LEX *lex=Lex;
            if (lex->result) 
              ((select_dumpvar *)lex->result)->var_list.push_back( new my_var($2,0,0,(enum_field_types)0));
            else
              /*
                The parser won't create select_result instance only
                if it's an EXPLAIN.
              */
              DBUG_ASSERT(lex->describe);
          }
        | ident_or_text
          {
            LEX *lex=Lex;
            sp_variable_t *t;

            if (!lex->spcont || !(t=lex->spcont->find_variable(&$1)))
            {
              my_error(ER_SP_UNDECLARED_VAR, MYF(0), $1.str);
              MYSQL_YYABORT;
            }
            if (lex->result)
            {
              my_var *var;
              ((select_dumpvar *)lex->result)->
                var_list.push_back(var= new my_var($1,1,t->offset,t->type));
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#ifndef DBUG_OFF
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              if (var)
                var->sp= lex->sphead;
8481
#endif
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            }
            else
            {
              /*
                The parser won't create select_result instance only
                if it's an EXPLAIN.
              */
              DBUG_ASSERT(lex->describe);
            }
          }
        ;
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8493

8494
into:
8495
          INTO
8496
          {
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            if (! Lex->parsing_options.allows_select_into)
            {
              my_error(ER_VIEW_SELECT_CLAUSE, MYF(0), "INTO");
              MYSQL_YYABORT;
            }
8502
          }
8503
          into_destination
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        ;

into_destination:
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          OUTFILE TEXT_STRING_filesystem
          {
            LEX *lex= Lex;
            lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
            if (!(lex->exchange= new sql_exchange($2.str, 0)) ||
                !(lex->result= new select_export(lex->exchange)))
              MYSQL_YYABORT;
          }
          opt_field_term opt_line_term
        | DUMPFILE TEXT_STRING_filesystem
          {
            LEX *lex=Lex;
            if (!lex->describe)
            {
              lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
              if (!(lex->exchange= new sql_exchange($2.str,1)))
                MYSQL_YYABORT;
              if (!(lex->result= new select_dump(lex->exchange)))
                MYSQL_YYABORT;
            }
          }
8528
        | select_var_list_init
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          {
            Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
          }
8532
        ;
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/*
  DO statement
*/
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do:
          DO_SYM
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_DO;
            mysql_init_select(lex);
          }
          expr_list
          {
            Lex->insert_list= $3;
          }
        ;
8550

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/*
8552
  Drop : delete tables or index or user
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*/

drop:
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          DROP opt_temporary table_or_tables if_exists table_list opt_restrict
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_DROP_TABLE;
            lex->drop_temporary= $2;
            lex->drop_if_exists= $4;
          }
        | DROP INDEX_SYM ident ON table_ident {}
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_DROP_INDEX;
            lex->alter_info.reset();
            lex->alter_info.flags= ALTER_DROP_INDEX;
            lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
                                                               $3.str));
            if (!lex->current_select->add_table_to_list(lex->thd, $5, NULL,
                                                        TL_OPTION_UPDATING))
              MYSQL_YYABORT;
          }
        | DROP DATABASE if_exists ident
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_DROP_DB;
            lex->drop_if_exists=$3;
            lex->name= $4;
          }
        | DROP FUNCTION_SYM if_exists sp_name
          {
            LEX *lex=Lex;
            if (lex->sphead)
            {
              my_error(ER_SP_NO_DROP_SP, MYF(0), "FUNCTION");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_DROP_FUNCTION;
            lex->drop_if_exists= $3;
            lex->spname= $4;
          }
        | DROP PROCEDURE if_exists sp_name
          {
            LEX *lex=Lex;
            if (lex->sphead)
            {
              my_error(ER_SP_NO_DROP_SP, MYF(0), "PROCEDURE");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_DROP_PROCEDURE;
            lex->drop_if_exists= $3;
            lex->spname= $4;
          }
        | DROP USER clear_privileges user_list
          {
            Lex->sql_command = SQLCOM_DROP_USER;
          }
        | DROP VIEW_SYM if_exists table_list opt_restrict
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_DROP_VIEW;
            lex->drop_if_exists= $3;
8615
          }
8616 8617
        | DROP EVENT_SYM if_exists sp_name
          {
8618 8619 8620
            Lex->drop_if_exists= $3;
            Lex->spname= $4;
            Lex->sql_command = SQLCOM_DROP_EVENT;
8621
          }
8622
        | DROP TRIGGER_SYM if_exists sp_name
8623 8624 8625
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_DROP_TRIGGER;
8626 8627
            lex->drop_if_exists= $3;
            lex->spname= $4;
8628
          }
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        | DROP TABLESPACE tablespace_name opt_ts_engine opt_ts_wait
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= DROP_TABLESPACE;
          }
8634
        | DROP LOGFILE_SYM GROUP_SYM logfile_group_name opt_ts_engine opt_ts_wait
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= DROP_LOGFILE_GROUP;
8638
          }
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        | DROP SERVER_SYM if_exists ident_or_text
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          {
            Lex->sql_command = SQLCOM_DROP_SERVER;
            Lex->drop_if_exists= $3;
            Lex->server_options.server_name= $4.str;
            Lex->server_options.server_name_length= $4.length;
          }
        ;
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table_list:
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          table_name
        | table_list ',' table_name
        ;
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8653
table_name:
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          table_ident
          {
            if (!Select->add_table_to_list(YYTHD, $1, NULL, TL_OPTION_UPDATING))
              MYSQL_YYABORT;
          }
        ;
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if_exists:
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          /* empty */ { $$= 0; }
        | IF EXISTS { $$= 1; }
        ;
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8666
opt_temporary:
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          /* empty */ { $$= 0; }
        | TEMPORARY { $$= 1; }
        ;
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/*
** Insert : add new data to table
*/

insert:
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          INSERT
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_INSERT;
            lex->duplicates= DUP_ERROR; 
            mysql_init_select(lex);
            /* for subselects */
            lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
          }
          insert_lock_option
          opt_ignore insert2
          {
            Select->set_lock_for_tables($3);
            Lex->current_select= &Lex->select_lex;
          }
          insert_field_spec opt_insert_update
          {}
        ;
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replace:
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          REPLACE
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_REPLACE;
            lex->duplicates= DUP_REPLACE;
            mysql_init_select(lex);
          }
          replace_lock_option insert2
          {
            Select->set_lock_for_tables($3);
            Lex->current_select= &Lex->select_lex;
          }
          insert_field_spec
          {}
        ;
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insert_lock_option:
8712
          /* empty */
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          {
#ifdef HAVE_QUERY_CACHE
            /*
              If it is SP we do not allow insert optimisation whan result of
              insert visible only after the table unlocking but everyone can
              read table.
            */
8720
            $$= (Lex->sphead ? TL_WRITE_DEFAULT : TL_WRITE_CONCURRENT_INSERT);
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#else
            $$= TL_WRITE_CONCURRENT_INSERT;
#endif
          }
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        | LOW_PRIORITY  { $$= TL_WRITE_LOW_PRIORITY; }
        | DELAYED_SYM   { $$= TL_WRITE_DELAYED; }
        | HIGH_PRIORITY { $$= TL_WRITE; }
        ;
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replace_lock_option:
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          opt_low_priority { $$= $1; }
        | DELAYED_SYM { $$= TL_WRITE_DELAYED; }
        ;
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insert2:
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          INTO insert_table {}
        | insert_table {}
        ;
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insert_table:
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          table_name
          {
            LEX *lex=Lex;
            lex->field_list.empty();
            lex->many_values.empty();
            lex->insert_list=0;
          };
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insert_field_spec:
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          insert_values {}
        | '(' ')' insert_values {}
        | '(' fields ')' insert_values {}
        | SET
          {
            LEX *lex=Lex;
            if (!(lex->insert_list = new List_item) ||
                lex->many_values.push_back(lex->insert_list))
              MYSQL_YYABORT;
          }
          ident_eq_list
        ;
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fields:
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          fields ',' insert_ident { Lex->field_list.push_back($3); }
        | insert_ident { Lex->field_list.push_back($1); }
        ;
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insert_values:
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          VALUES values_list {}
        | VALUE_SYM values_list {}
        | create_select
          { Select->set_braces(0);}
          union_clause {}
        | '(' create_select ')'
          { Select->set_braces(1);}
          union_opt {}
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        ;
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values_list:
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          values_list ','  no_braces
        | no_braces
        ;
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ident_eq_list:
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          ident_eq_list ',' ident_eq_value
        | ident_eq_value
        ;
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ident_eq_value:
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          simple_ident_nospvar equal expr_or_default
          {
            LEX *lex=Lex;
            if (lex->field_list.push_back($1) ||
                lex->insert_list->push_back($3))
              MYSQL_YYABORT;
          }
        ;

equal:
          EQ {}
        | SET_VAR {}
        ;
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opt_equal:
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          /* empty */ {}
        | equal {}
        ;
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no_braces:
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          '('
          {
              if (!(Lex->insert_list = new List_item))
                MYSQL_YYABORT;
          }
          opt_values ')'
          {
            LEX *lex=Lex;
            if (lex->many_values.push_back(lex->insert_list))
              MYSQL_YYABORT;
          }
        ;
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opt_values:
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          /* empty */ {}
        | values
        ;
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values:
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          values ','  expr_or_default
          {
            if (Lex->insert_list->push_back($3))
              MYSQL_YYABORT;
          }
        | expr_or_default
          {
            if (Lex->insert_list->push_back($1))
              MYSQL_YYABORT;
          }
        ;
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expr_or_default:
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          expr { $$= $1;}
        | DEFAULT {$$= new Item_default_value(Lex->current_context()); }
        ;
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8846
opt_insert_update:
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          /* empty */
        | ON DUPLICATE_SYM { Lex->duplicates= DUP_UPDATE; }
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          KEY_SYM UPDATE_SYM insert_update_list
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        ;

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/* Update rows in a table */

update:
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          UPDATE_SYM
          {
            LEX *lex= Lex;
            mysql_init_select(lex);
            lex->sql_command= SQLCOM_UPDATE;
            lex->lock_option= TL_UNLOCK; /* Will be set later */
            lex->duplicates= DUP_ERROR; 
          }
          opt_low_priority opt_ignore join_table_list
          SET update_list
          {
            LEX *lex= Lex;
            if (lex->select_lex.table_list.elements > 1)
              lex->sql_command= SQLCOM_UPDATE_MULTI;
            else if (lex->select_lex.get_table_list()->derived)
            {
              /* it is single table update and it is update of derived table */
              my_error(ER_NON_UPDATABLE_TABLE, MYF(0),
                       lex->select_lex.get_table_list()->alias, "UPDATE");
              MYSQL_YYABORT;
            }
            /*
              In case of multi-update setting write lock for all tables may
              be too pessimistic. We will decrease lock level if possible in
              mysql_multi_update().
            */
            Select->set_lock_for_tables($3);
          }
          where_clause opt_order_clause delete_limit_clause {}
        ;
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update_list:
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          update_list ',' update_elem
        | update_elem
        ;
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update_elem:
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          simple_ident_nospvar equal expr_or_default
          {
            if (add_item_to_list(YYTHD, $1) || add_value_to_list(YYTHD, $3))
              MYSQL_YYABORT;
          }
        ;
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insert_update_list:
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          insert_update_list ',' insert_update_elem
        | insert_update_elem
        ;
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insert_update_elem:
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          simple_ident_nospvar equal expr_or_default
          {
          LEX *lex= Lex;
          if (lex->update_list.push_back($1) || 
              lex->value_list.push_back($3))
              MYSQL_YYABORT;
          }
        ;
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opt_low_priority:
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          /* empty */ { $$= TL_WRITE_DEFAULT; }
        | LOW_PRIORITY { $$= TL_WRITE_LOW_PRIORITY; }
        ;
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/* Delete rows from a table */

delete:
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          DELETE_SYM
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_DELETE;
            mysql_init_select(lex);
            lex->lock_option= TL_WRITE_DEFAULT;
            lex->ignore= 0;
            lex->select_lex.init_order();
          }
          opt_delete_options single_multi {}
        ;
8933 8934

single_multi:
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          FROM table_ident
          {
            if (!Select->add_table_to_list(YYTHD, $2, NULL, TL_OPTION_UPDATING,
                                           Lex->lock_option))
              MYSQL_YYABORT;
          }
          where_clause opt_order_clause
          delete_limit_clause {}
        | table_wild_list
          { mysql_init_multi_delete(Lex); }
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          FROM join_table_list where_clause
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          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
8948
              MYSQL_YYABORT;
8949
          }
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        | FROM table_wild_list
          { mysql_init_multi_delete(Lex); }
          USING join_table_list where_clause
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          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
8955
              MYSQL_YYABORT;
8956
          }
8957
        ;
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table_wild_list:
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          table_wild_one {}
        | table_wild_list ',' table_wild_one {}
        ;
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table_wild_one:
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          ident opt_wild opt_table_alias
          {
            if (!Select->add_table_to_list(YYTHD, new Table_ident($1),
                                           $3,
                                           TL_OPTION_UPDATING | TL_OPTION_ALIAS,
                                           Lex->lock_option))
              MYSQL_YYABORT;
          }
        | ident '.' ident opt_wild opt_table_alias
          {
            if (!Select->add_table_to_list(YYTHD,
                                           new Table_ident(YYTHD, $1, $3, 0),
                                           $5, 
                                           TL_OPTION_UPDATING | TL_OPTION_ALIAS,
                                           Lex->lock_option))
              MYSQL_YYABORT;
          }
        ;
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opt_wild:
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          /* empty */ {}
        | '.' '*' {}
        ;
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8988

8989
opt_delete_options:
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          /* empty */ {}
        | opt_delete_option opt_delete_options {}
        ;
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opt_delete_option:
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          QUICK        { Select->options|= OPTION_QUICK; }
        | LOW_PRIORITY { Lex->lock_option= TL_WRITE_LOW_PRIORITY; }
        | IGNORE_SYM   { Lex->ignore= 1; }
        ;
8999

9000
truncate:
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          TRUNCATE_SYM opt_table_sym table_name
          {
            LEX* lex= Lex;
            lex->sql_command= SQLCOM_TRUNCATE;
            lex->select_lex.options= 0;
            lex->select_lex.sql_cache= SELECT_LEX::SQL_CACHE_UNSPECIFIED;
            lex->select_lex.init_order();
          }
        ;
9010

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9011
opt_table_sym:
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          /* empty */
        | TABLE_SYM
        ;
9015

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/* Show things */

9018 9019 9020 9021 9022 9023 9024 9025 9026 9027 9028 9029 9030
show:
          SHOW
          {
            LEX *lex=Lex;
            lex->wild=0;
            lex->lock_option= TL_READ;
            mysql_init_select(lex);
            lex->current_select->parsing_place= SELECT_LIST;
            bzero((char*) &lex->create_info,sizeof(lex->create_info));
          }
          show_param
          {}
        ;
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show_param:
9033 9034 9035 9036 9037 9038 9039
           DATABASES wild_and_where
           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SHOW_DATABASES;
             if (prepare_schema_table(YYTHD, lex, 0, SCH_SCHEMATA))
               MYSQL_YYABORT;
           }
9040
         | opt_full TABLES opt_db wild_and_where
9041 9042
           {
             LEX *lex= Lex;
9043
             lex->sql_command= SQLCOM_SHOW_TABLES;
9044
             lex->select_lex.db= $3;
9045
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLE_NAMES))
9046
               MYSQL_YYABORT;
9047
           }
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         | opt_full TRIGGERS_SYM opt_db wild_and_where
           {
             LEX *lex= Lex;
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             lex->sql_command= SQLCOM_SHOW_TRIGGERS;
9052 9053
             lex->select_lex.db= $3;
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TRIGGERS))
9054
               MYSQL_YYABORT;
9055
           }
9056
         | EVENTS_SYM opt_db wild_and_where
9057 9058
           {
             LEX *lex= Lex;
9059
             lex->sql_command= SQLCOM_SHOW_EVENTS;
9060
             lex->select_lex.db= $2;
9061
             if (prepare_schema_table(YYTHD, lex, 0, SCH_EVENTS))
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               MYSQL_YYABORT;
9063
           }
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         | TABLE_SYM STATUS_SYM opt_db wild_and_where
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           {
             LEX *lex= Lex;
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             lex->sql_command= SQLCOM_SHOW_TABLE_STATUS;
9068
             lex->select_lex.db= $3;
9069
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLES))
9070
               MYSQL_YYABORT;
9071
           }
9072
        | OPEN_SYM TABLES opt_db wild_and_where
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          {
            LEX *lex= Lex;
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            lex->sql_command= SQLCOM_SHOW_OPEN_TABLES;
9076
            lex->select_lex.db= $3;
9077
            if (prepare_schema_table(YYTHD, lex, 0, SCH_OPEN_TABLES))
9078
              MYSQL_YYABORT;
9079
          }
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        | opt_full PLUGIN_SYM
9081 9082 9083
          {
            LEX *lex= Lex;
            WARN_DEPRECATED(yythd, "5.2", "SHOW PLUGIN", "'SHOW PLUGINS'");
9084
            lex->sql_command= SQLCOM_SHOW_PLUGINS;
9085
            if (prepare_schema_table(YYTHD, lex, 0, SCH_PLUGINS))
9086
              MYSQL_YYABORT;
9087
          }
9088
        | PLUGINS_SYM
9089 9090
          {
            LEX *lex= Lex;
9091
            lex->sql_command= SQLCOM_SHOW_PLUGINS;
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9092
            if (prepare_schema_table(YYTHD, lex, 0, SCH_PLUGINS))
9093
              MYSQL_YYABORT;
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          }
        | ENGINE_SYM known_storage_engines show_engine_param
          { Lex->create_info.db_type= $2; }
        | ENGINE_SYM ALL show_engine_param
          { Lex->create_info.db_type= NULL; }
        | opt_full COLUMNS from_or_in table_ident opt_db wild_and_where
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          {
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            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SHOW_FIELDS;
            if ($5)
              $4->change_db($5);
            if (prepare_schema_table(YYTHD, lex, $4, SCH_COLUMNS))
              MYSQL_YYABORT;
          }
        | NEW_SYM MASTER_SYM FOR_SYM SLAVE
          WITH MASTER_LOG_FILE_SYM EQ
          TEXT_STRING_sys /* $8 */
          AND_SYM MASTER_LOG_POS_SYM EQ
          ulonglong_num /* $12 */
          AND_SYM MASTER_SERVER_ID_SYM EQ
          ulong_num /* $16 */
          {
            Lex->sql_command = SQLCOM_SHOW_NEW_MASTER;
            Lex->mi.log_file_name = $8.str;
            Lex->mi.pos = $12;
            Lex->mi.server_id = $16;
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          }
9121
        | master_or_binary LOGS_SYM
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9122
          {
9123
            Lex->sql_command = SQLCOM_SHOW_BINLOGS;
9124 9125 9126
          }
        | SLAVE HOSTS_SYM
          {
9127
            Lex->sql_command = SQLCOM_SHOW_SLAVE_HOSTS;
9128
          }
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9129
        | BINLOG_SYM EVENTS_SYM binlog_in binlog_from
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9130
          {
9131 9132
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SHOW_BINLOG_EVENTS;
9133
          } opt_limit_clause_init
9134
        | keys_or_index from_or_in table_ident opt_db where_clause
9135 9136
          {
            LEX *lex= Lex;
9137
            lex->sql_command= SQLCOM_SHOW_KEYS;
9138 9139
            if ($4)
              $3->change_db($4);
9140
            if (prepare_schema_table(YYTHD, lex, $3, SCH_STATISTICS))
9141
              MYSQL_YYABORT;
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          }
        | COLUMN_SYM TYPES_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_COLUMN_TYPES;
          }
        | TABLE_SYM TYPES_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_STORAGE_ENGINES;
            WARN_DEPRECATED(yythd, "5.2", "SHOW TABLE TYPES", "'SHOW [STORAGE] ENGINES'");
9153 9154
            if (prepare_schema_table(YYTHD, lex, 0, SCH_ENGINES))
              MYSQL_YYABORT;
9155 9156 9157 9158 9159
          }
        | opt_storage ENGINES_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_STORAGE_ENGINES;
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9160
            if (prepare_schema_table(YYTHD, lex, 0, SCH_ENGINES))
9161
              MYSQL_YYABORT;
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          }
        | AUTHORS_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_AUTHORS;
          }
        | CONTRIBUTORS_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_CONTRIBUTORS;
          }
        | PRIVILEGES
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_PRIVILEGES;
          }
9178
        | COUNT_SYM '(' '*' ')' WARNINGS
9179
          { (void) create_select_for_variable("warning_count"); }
9180
        | COUNT_SYM '(' '*' ')' ERRORS
9181
          { (void) create_select_for_variable("error_count"); }
9182
        | WARNINGS opt_limit_clause_init
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9183
          { Lex->sql_command = SQLCOM_SHOW_WARNS;}
9184
        | ERRORS opt_limit_clause_init
9185
          { Lex->sql_command = SQLCOM_SHOW_ERRORS;}
9186
        | opt_var_type STATUS_SYM wild_and_where
9187
          {
9188
            LEX *lex= Lex;
9189
            lex->sql_command= SQLCOM_SHOW_STATUS;
9190
            lex->option_type= $1;
9191
            if (prepare_schema_table(YYTHD, lex, 0, SCH_STATUS))
9192
              MYSQL_YYABORT;
9193
          }
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9194
        | INNOBASE_SYM STATUS_SYM
9195 9196 9197
          {
            LEX *lex= Lex;
            lex->sql_command = SQLCOM_SHOW_ENGINE_STATUS;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_INNODB)))
            {
9201 9202
              my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "InnoDB");
              MYSQL_YYABORT;
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9203
            }
9204
            WARN_DEPRECATED(yythd, "5.2", "SHOW INNODB STATUS", "'SHOW ENGINE INNODB STATUS'");
9205
          }
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9206
        | MUTEX_SYM STATUS_SYM
9207
          {
9208
            LEX *lex= Lex;
9209
            lex->sql_command = SQLCOM_SHOW_ENGINE_MUTEX;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_INNODB)))
            {
9213 9214
              my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "InnoDB");
              MYSQL_YYABORT;
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9215
            }
9216
            WARN_DEPRECATED(yythd, "5.2", "SHOW MUTEX STATUS", "'SHOW ENGINE INNODB MUTEX'");
9217 9218 9219
          }
        | opt_full PROCESSLIST_SYM
          { Lex->sql_command= SQLCOM_SHOW_PROCESSLIST;}
9220
        | opt_var_type  VARIABLES wild_and_where
9221
          {
9222
            LEX *lex= Lex;
9223
            lex->sql_command= SQLCOM_SHOW_VARIABLES;
9224
            lex->option_type= $1;
9225
            if (prepare_schema_table(YYTHD, lex, 0, SCH_VARIABLES))
9226
              MYSQL_YYABORT;
9227
          }
9228
        | charset wild_and_where
9229 9230
          {
            LEX *lex= Lex;
9231
            lex->sql_command= SQLCOM_SHOW_CHARSETS;
9232
            if (prepare_schema_table(YYTHD, lex, 0, SCH_CHARSETS))
9233
              MYSQL_YYABORT;
9234
          }
9235
        | COLLATION_SYM wild_and_where
9236 9237
          {
            LEX *lex= Lex;
9238
            lex->sql_command= SQLCOM_SHOW_COLLATIONS;
9239
            if (prepare_schema_table(YYTHD, lex, 0, SCH_COLLATIONS))
9240
              MYSQL_YYABORT;
9241
          }
9242 9243 9244 9245 9246
        | GRANTS
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_GRANTS;
            LEX_USER *curr_user;
9247
            if (!(curr_user= (LEX_USER*) lex->thd->alloc(sizeof(st_lex_user))))
9248
              MYSQL_YYABORT;
9249
            bzero(curr_user, sizeof(st_lex_user));
9250 9251 9252 9253 9254 9255 9256 9257 9258 9259 9260 9261 9262 9263 9264
            lex->grant_user= curr_user;
          }
        | GRANTS FOR_SYM user
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SHOW_GRANTS;
            lex->grant_user=$3;
            lex->grant_user->password=null_lex_str;
          }
        | CREATE DATABASE opt_if_not_exists ident
          {
            Lex->sql_command=SQLCOM_SHOW_CREATE_DB;
            Lex->create_info.options=$3;
            Lex->name= $4;
          }
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        | CREATE TABLE_SYM table_ident
          {
9267
            LEX *lex= Lex;
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            lex->sql_command = SQLCOM_SHOW_CREATE;
            if (!lex->select_lex.add_table_to_list(YYTHD, $3, NULL,0))
              MYSQL_YYABORT;
9271
            lex->only_view= 0;
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            lex->create_info.storage_media= HA_SM_DEFAULT;
          }
9274 9275 9276
        | CREATE VIEW_SYM table_ident
          {
            LEX *lex= Lex;
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            lex->sql_command = SQLCOM_SHOW_CREATE;
            if (!lex->select_lex.add_table_to_list(YYTHD, $3, NULL, 0))
              MYSQL_YYABORT;
9280
            lex->only_view= 1;
9281
          }
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        | MASTER_SYM STATUS_SYM
          {
9284
            Lex->sql_command = SQLCOM_SHOW_MASTER_STAT;
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9285
          }
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        | SLAVE STATUS_SYM
          {
9288
            Lex->sql_command = SQLCOM_SHOW_SLAVE_STAT;
9289
          }
9290 9291 9292
        | CREATE PROCEDURE sp_name
          {
            LEX *lex= Lex;
9293

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            lex->sql_command = SQLCOM_SHOW_CREATE_PROC;
            lex->spname= $3;
          }
        | CREATE FUNCTION_SYM sp_name
          {
            LEX *lex= Lex;
9300

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            lex->sql_command = SQLCOM_SHOW_CREATE_FUNC;
            lex->spname= $3;
          }
        | CREATE TRIGGER_SYM sp_name
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SHOW_CREATE_TRIGGER;
            lex->spname= $3;
          }
        | PROCEDURE STATUS_SYM wild_and_where
          {
9312
            LEX *lex= Lex;
9313
            lex->sql_command= SQLCOM_SHOW_STATUS_PROC;
9314 9315
            if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
              MYSQL_YYABORT;
9316
            if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
9317
              MYSQL_YYABORT;
9318 9319 9320
          }
        | FUNCTION_SYM STATUS_SYM wild_and_where
          {
9321
            LEX *lex= Lex;
9322
            lex->sql_command= SQLCOM_SHOW_STATUS_FUNC;
9323 9324
            if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
              MYSQL_YYABORT;
9325
            if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
9326
              MYSQL_YYABORT;
9327
          }
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        | PROCEDURE CODE_SYM sp_name
          {
#ifdef DBUG_OFF
9331 9332
            my_parse_error(ER(ER_SYNTAX_ERROR));
            MYSQL_YYABORT;
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#else
            Lex->sql_command= SQLCOM_SHOW_PROC_CODE;
9335
            Lex->spname= $3;
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#endif
          }
        | FUNCTION_SYM CODE_SYM sp_name
          {
#ifdef DBUG_OFF
9341 9342
            my_parse_error(ER(ER_SYNTAX_ERROR));
            MYSQL_YYABORT;
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#else
            Lex->sql_command= SQLCOM_SHOW_FUNC_CODE;
9345
            Lex->spname= $3;
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#endif
          }
9348 9349
        | CREATE EVENT_SYM sp_name
          {
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9350
            Lex->spname= $3;
9351
            Lex->sql_command = SQLCOM_SHOW_CREATE_EVENT;
9352
          }
9353
        ;
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9354

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9355
show_engine_param:
9356 9357 9358 9359 9360 9361 9362
          STATUS_SYM
          { Lex->sql_command= SQLCOM_SHOW_ENGINE_STATUS; }
        | MUTEX_SYM
          { Lex->sql_command= SQLCOM_SHOW_ENGINE_MUTEX; }
        | LOGS_SYM
          { Lex->sql_command= SQLCOM_SHOW_ENGINE_LOGS; }
        ;
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9363

9364
master_or_binary:
9365 9366 9367
          MASTER_SYM
        | BINARY
        ;
9368

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9369
opt_storage:
9370 9371 9372
          /* empty */
        | STORAGE_SYM
        ;
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9373

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9374
opt_db:
9375 9376 9377
          /* empty */  { $$= 0; }
        | from_or_in ident { $$= $2.str; }
        ;
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9378

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opt_full:
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          /* empty */ { Lex->verbose=0; }
        | FULL        { Lex->verbose=1; }
        ;
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from_or_in:
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          FROM
        | IN_SYM
        ;
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binlog_in:
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          /* empty */            { Lex->mi.log_file_name = 0; }
        | IN_SYM TEXT_STRING_sys { Lex->mi.log_file_name = $2.str; }
        ;
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binlog_from:
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          /* empty */        { Lex->mi.pos = 4; /* skip magic number */ }
        | FROM ulonglong_num { Lex->mi.pos = $2; }
        ;
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wild_and_where:
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          /* empty */
        | LIKE TEXT_STRING_sys
          {
            Lex->wild= new (YYTHD->mem_root) String($2.str, $2.length,
                                                    system_charset_info);
          }
        | WHERE expr
          {
            Select->where= $2;
            if ($2)
              $2->top_level_item();
          }
        ;
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/* A Oracle compatible synonym for show */
describe:
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          describe_command table_ident
          {
            LEX *lex= Lex;
            lex->lock_option= TL_READ;
            mysql_init_select(lex);
            lex->current_select->parsing_place= SELECT_LIST;
            lex->sql_command= SQLCOM_SHOW_FIELDS;
            lex->select_lex.db= 0;
            lex->verbose= 0;
            if (prepare_schema_table(YYTHD, lex, $2, SCH_COLUMNS))
              MYSQL_YYABORT;
          }
          opt_describe_column {}
        | describe_command opt_extended_describe
          { Lex->describe|= DESCRIBE_NORMAL; }
          select
          {
            LEX *lex=Lex;
            lex->select_lex.options|= SELECT_DESCRIBE;
          }
        ;
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describe_command:
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          DESC
        | DESCRIBE
        ;
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opt_extended_describe:
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          /* empty */ {}
        | EXTENDED_SYM   { Lex->describe|= DESCRIBE_EXTENDED; }
        | PARTITIONS_SYM { Lex->describe|= DESCRIBE_PARTITIONS; }
        ;
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opt_describe_column:
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          /* empty */ {}
        | text_string { Lex->wild= $1; }
        | ident
          {
            Lex->wild= new (YYTHD->mem_root) String((const char*) $1.str,
                                                    $1.length,
                                                    system_charset_info);
          }
        ;
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/* flush things */

flush:
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          FLUSH_SYM opt_no_write_to_binlog
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_FLUSH;
            lex->type= 0;
            lex->no_write_to_binlog= $2;
          }
          flush_options
          {}
        ;
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flush_options:
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          flush_options ',' flush_option
        | flush_option
        ;
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flush_option:
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          table_or_tables
          { Lex->type|= REFRESH_TABLES; }
          opt_table_list {}
        | TABLES WITH READ_SYM LOCK_SYM
          { Lex->type|= REFRESH_TABLES | REFRESH_READ_LOCK; }
        | QUERY_SYM CACHE_SYM
          { Lex->type|= REFRESH_QUERY_CACHE_FREE; }
        | HOSTS_SYM
          { Lex->type|= REFRESH_HOSTS; }
        | PRIVILEGES
          { Lex->type|= REFRESH_GRANT; }
        | LOGS_SYM
          { Lex->type|= REFRESH_LOG; }
        | STATUS_SYM
          { Lex->type|= REFRESH_STATUS; }
        | SLAVE
          { Lex->type|= REFRESH_SLAVE; }
        | MASTER_SYM
          { Lex->type|= REFRESH_MASTER; }
        | DES_KEY_FILE
          { Lex->type|= REFRESH_DES_KEY_FILE; }
        | RESOURCES
          { Lex->type|= REFRESH_USER_RESOURCES; }
        ;
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opt_table_list:
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          /* empty */  {}
        | table_list {}
        ;
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reset:
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          RESET_SYM
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_RESET; lex->type=0;
          }
          reset_options
          {}
        ;
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reset_options:
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          reset_options ',' reset_option
        | reset_option
        ;
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reset_option:
9527
          SLAVE               { Lex->type|= REFRESH_SLAVE; }
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        | MASTER_SYM          { Lex->type|= REFRESH_MASTER; }
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        | QUERY_SYM CACHE_SYM { Lex->type|= REFRESH_QUERY_CACHE;}
        ;
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purge:
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          PURGE
          {
            LEX *lex=Lex;
            lex->type=0;
            lex->sql_command = SQLCOM_PURGE;
          }
          purge_options
          {}
        ;
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purge_options:
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          master_or_binary LOGS_SYM purge_option
        ;
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purge_option:
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          TO_SYM TEXT_STRING_sys
          {
            Lex->to_log = $2.str;
          }
        | BEFORE_SYM expr
          {
            LEX *lex= Lex;
            lex->value_list.empty();
            lex->value_list.push_front($2);
            lex->sql_command= SQLCOM_PURGE_BEFORE;
          }
        ;
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/* kill threads */

kill:
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          KILL_SYM kill_option expr
          {
            LEX *lex=Lex;
            lex->value_list.empty();
            lex->value_list.push_front($3);
            lex->sql_command= SQLCOM_KILL;
          }
        ;
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kill_option:
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          /* empty */ { Lex->type= 0; }
        | CONNECTION_SYM { Lex->type= 0; }
        | QUERY_SYM      { Lex->type= ONLY_KILL_QUERY; }
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        ;
9578

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/* change database */

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use:
          USE_SYM ident
          {
            LEX *lex=Lex;
            lex->sql_command=SQLCOM_CHANGE_DB;
            lex->select_lex.db= $2.str;
          }
        ;
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/* import, export of files */

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load:
          LOAD DATA_SYM
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
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            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "LOAD DATA");
              MYSQL_YYABORT;
            }
            lex->fname_start= lip->get_ptr();
          }
          load_data
          {}
        | LOAD TABLE_SYM table_ident FROM MASTER_SYM
          {
            LEX *lex=Lex;
            WARN_DEPRECATED(yythd, "5.2", "LOAD TABLE FROM MASTER",
                            "MySQL Administrator (mysqldump, mysql)");
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "LOAD TABLE");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_LOAD_MASTER_TABLE;
            if (!Select->add_table_to_list(YYTHD, $3, NULL, TL_OPTION_UPDATING))
              MYSQL_YYABORT;
          }
        ;
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load_data:
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          load_data_lock opt_local INFILE TEXT_STRING_filesystem
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_LOAD;
            lex->lock_option= $1;
            lex->local_file=  $2;
            lex->duplicates= DUP_ERROR;
            lex->ignore= 0;
            if (!(lex->exchange= new sql_exchange($4.str, 0)))
              MYSQL_YYABORT;
          }
          opt_duplicate INTO
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            lex->fname_end= lip->get_ptr();
          }
          TABLE_SYM table_ident
          {
            LEX *lex=Lex;
            if (!Select->add_table_to_list(YYTHD, $10, NULL, TL_OPTION_UPDATING,
                                           lex->lock_option))
              MYSQL_YYABORT;
            lex->field_list.empty();
            lex->update_list.empty();
            lex->value_list.empty();
          }
          opt_load_data_charset
          { Lex->exchange->cs= $12; }
          opt_field_term opt_line_term opt_ignore_lines opt_field_or_var_spec
          opt_load_data_set_spec
          {}
        | FROM MASTER_SYM
          {
            Lex->sql_command = SQLCOM_LOAD_MASTER_DATA;
            WARN_DEPRECATED(yythd, "5.2", "LOAD DATA FROM MASTER",
                            "mysqldump or future "
                            "BACKUP/RESTORE DATABASE facility");
          }
        ;
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opt_local:
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          /* empty */ { $$=0;}
        | LOCAL_SYM { $$=1;}
        ;
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load_data_lock:
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          /* empty */ { $$= TL_WRITE_DEFAULT; }
        | CONCURRENT
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          {
#ifdef HAVE_QUERY_CACHE
            /*
              Ignore this option in SP to avoid problem with query cache
            */
            if (Lex->sphead != 0)
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              $$= TL_WRITE_DEFAULT;
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            else
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#endif
              $$= TL_WRITE_CONCURRENT_INSERT;
          }
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        | LOW_PRIORITY { $$= TL_WRITE_LOW_PRIORITY; }
        ;
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opt_duplicate:
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          /* empty */ { Lex->duplicates=DUP_ERROR; }
        | REPLACE { Lex->duplicates=DUP_REPLACE; }
        | IGNORE_SYM { Lex->ignore= 1; }
        ;
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opt_field_term:
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          /* empty */
        | COLUMNS field_term_list
        ;
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field_term_list:
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          field_term_list field_term
        | field_term
        ;
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field_term:
9706
          TERMINATED BY text_string 
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          {
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            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->field_term= $3;
          }
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        | OPTIONALLY ENCLOSED BY text_string
          {
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            LEX *lex= Lex;
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            DBUG_ASSERT(lex->exchange != 0);
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            lex->exchange->enclosed= $4;
            lex->exchange->opt_enclosed= 1;
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          }
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        | ENCLOSED BY text_string
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          {
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            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->enclosed= $3;
          }
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        | ESCAPED BY text_string
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          {
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            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->escaped= $3;
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          }
        ;
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opt_line_term:
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          /* empty */
        | LINES line_term_list
        ;
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line_term_list:
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          line_term_list line_term
        | line_term
        ;
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line_term:
9741
          TERMINATED BY text_string
9742
          {
9743
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->line_term= $3;
          }
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        | STARTING BY text_string
9747
          {
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            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->line_start= $3;
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          }
        ;
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opt_ignore_lines:
9754
          /* empty */
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        | IGNORE_SYM NUM LINES
          {
9757
            DBUG_ASSERT(Lex->exchange != 0);
9758
            Lex->exchange->skip_lines= atol($2.str);
9759 9760
          }
        ;
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opt_field_or_var_spec:
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          /* empty */ {}
        | '(' fields_or_vars ')' {}
        | '(' ')' {}
        ;
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fields_or_vars:
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          fields_or_vars ',' field_or_var
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          { Lex->field_list.push_back($3); }
        | field_or_var
          { Lex->field_list.push_back($1); }
        ;
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field_or_var:
9776
          simple_ident_nospvar {$$= $1;}
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        | '@' ident_or_text
          { $$= new Item_user_var_as_out_param($2); }
        ;

opt_load_data_set_spec:
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          /* empty */ {}
        | SET insert_update_list {}
        ;
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/* Common definitions */

text_literal:
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          TEXT_STRING
          {
            LEX_STRING tmp;
            THD *thd= YYTHD;
            CHARSET_INFO *cs_con= thd->variables.collation_connection;
            CHARSET_INFO *cs_cli= thd->variables.character_set_client;
            uint repertoire= thd->lex->text_string_is_7bit &&
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                             my_charset_is_ascii_based(cs_cli) ?
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                             MY_REPERTOIRE_ASCII : MY_REPERTOIRE_UNICODE30;
            if (thd->charset_is_collation_connection ||
                (repertoire == MY_REPERTOIRE_ASCII &&
                 my_charset_is_ascii_based(cs_con)))
              tmp= $1;
            else
              thd->convert_string(&tmp, cs_con, $1.str, $1.length, cs_cli);
            $$= new Item_string(tmp.str, tmp.length, cs_con,
                                DERIVATION_COERCIBLE, repertoire);
          }
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        | NCHAR_STRING
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          {
            uint repertoire= Lex->text_string_is_7bit ?
                             MY_REPERTOIRE_ASCII : MY_REPERTOIRE_UNICODE30;
            DBUG_ASSERT(my_charset_is_ascii_based(national_charset_info));
            $$= new Item_string($1.str, $1.length, national_charset_info,
                                DERIVATION_COERCIBLE, repertoire);
          }
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        | UNDERSCORE_CHARSET TEXT_STRING
          {
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            $$= new Item_string($2.str, $2.length, $1);
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            ((Item_string*) $$)->set_repertoire_from_value();
          }
        | text_literal TEXT_STRING_literal
          {
            Item_string* item= (Item_string*) $1;
            item->append($2.str, $2.length);
            if (!(item->collation.repertoire & MY_REPERTOIRE_EXTENDED))
            {
              /*
                 If the string has been pure ASCII so far,
                 check the new part.
              */
              CHARSET_INFO *cs= YYTHD->variables.collation_connection;
              item->collation.repertoire|= my_string_repertoire(cs,
                                                                $2.str,
                                                                $2.length);
            }
          }
        ;
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text_string:
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          TEXT_STRING_literal
          {
            $$= new (YYTHD->mem_root) String($1.str,
                                             $1.length,
                                             YYTHD->variables.collation_connection);
          }
        | HEX_NUM
          {
            Item *tmp= new Item_hex_string($1.str, $1.length);
            /*
              it is OK only emulate fix_fields, because we need only
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              value of constant
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            */
            $$= tmp ?
              tmp->quick_fix_field(), tmp->val_str((String*) 0) :
              (String*) 0;
          }
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        | BIN_NUM
          {
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            Item *tmp= new Item_bin_string($1.str, $1.length);
            /*
              it is OK only emulate fix_fields, because we need only
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              value of constant
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            */
            $$= tmp ? tmp->quick_fix_field(), tmp->val_str((String*) 0) :
              (String*) 0;
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          }
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        ;
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param_marker:
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          PARAM_MARKER
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          {
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            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            Item_param *item;
            if (! lex->parsing_options.allows_variable)
            {
              my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
              MYSQL_YYABORT;
            }
            item= new Item_param((uint) (lip->get_tok_start() - thd->query));
            if (!($$= item) || lex->param_list.push_back(item))
            {
              my_message(ER_OUT_OF_RESOURCES, ER(ER_OUT_OF_RESOURCES), MYF(0));
              MYSQL_YYABORT;
            }
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          }
9887
        ;
9888

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signed_literal:
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          literal { $$ = $1; }
        | '+' NUM_literal { $$ = $2; }
        | '-' NUM_literal
          {
            $2->max_length++;
            $$= $2->neg();
          }
        ;
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literal:
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          text_literal { $$ = $1; }
        | NUM_literal { $$ = $1; }
        | NULL_SYM
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          {
            $$ = new Item_null();
            YYTHD->m_lip->next_state=MY_LEX_OPERATOR_OR_IDENT;
          }
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        | FALSE_SYM { $$= new Item_int((char*) "FALSE",0,1); }
        | TRUE_SYM { $$= new Item_int((char*) "TRUE",1,1); }
        | HEX_NUM { $$ = new Item_hex_string($1.str, $1.length);}
        | BIN_NUM { $$= new Item_bin_string($1.str, $1.length); }
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        | UNDERSCORE_CHARSET HEX_NUM
          {
            Item *tmp= new Item_hex_string($2.str, $2.length);
            /*
              it is OK only emulate fix_fieds, because we need only
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              value of constant
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            */
            String *str= tmp ?
              tmp->quick_fix_field(), tmp->val_str((String*) 0) :
              (String*) 0;
            $$= new Item_string(str ? str->ptr() : "",
                                str ? str->length() : 0,
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                                $1);
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            if ($$)
              ((Item_string *) $$)->set_repertoire_from_value();
          }
9927
        | UNDERSCORE_CHARSET BIN_NUM
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          {
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            Item *tmp= new Item_bin_string($2.str, $2.length);
            /*
              it is OK only emulate fix_fieds, because we need only
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              value of constant
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            */
            String *str= tmp ?
              tmp->quick_fix_field(), tmp->val_str((String*) 0) :
              (String*) 0;
            $$= new Item_string(str ? str->ptr() : "",
                                str ? str->length() : 0,
            Lex->charset);
          }
        | DATE_SYM text_literal { $$ = $2; }
        | TIME_SYM text_literal { $$ = $2; }
        | TIMESTAMP text_literal { $$ = $2; }
        ;
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9946
NUM_literal:
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          NUM
          {
            int error;
            $$ = new Item_int($1.str, (longlong) my_strtoll10($1.str, NULL, &error), $1.length);
          }
        | LONG_NUM
          {
            int error;
            $$ = new Item_int($1.str, (longlong) my_strtoll10($1.str, NULL, &error), $1.length);
          }
        | ULONGLONG_NUM
          { $$ = new Item_uint($1.str, $1.length); }
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        | DECIMAL_NUM
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          {
            $$= new Item_decimal($1.str, $1.length, YYTHD->charset());
            if (YYTHD->net.report_error)
            {
              MYSQL_YYABORT;
            }
          }
        | FLOAT_NUM
          {
            $$ = new Item_float($1.str, $1.length);
            if (YYTHD->net.report_error)
            {
              MYSQL_YYABORT;
            }
          }
        ;
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/**********************************************************************
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** Creating different items.
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**********************************************************************/

insert_ident:
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          simple_ident_nospvar { $$=$1; }
        | table_wild { $$=$1; }
        ;
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table_wild:
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          ident '.' '*'
          {
            SELECT_LEX *sel= Select;
            $$ = new Item_field(Lex->current_context(), NullS, $1.str, "*");
            sel->with_wild++;
          }
        | ident '.' ident '.' '*'
          {
            SELECT_LEX *sel= Select;
            $$ = new Item_field(Lex->current_context(), (YYTHD->client_capabilities &
                                CLIENT_NO_SCHEMA ? NullS : $1.str),
                                $3.str,"*");
            sel->with_wild++;
          }
        ;
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10002 10003

order_ident:
10004 10005
          expr { $$=$1; }
        ;
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simple_ident:
10008 10009 10010 10011 10012 10013 10014 10015 10016 10017 10018 10019 10020 10021 10022
          ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            sp_variable_t *spv;
            sp_pcontext *spc = lex->spcont;
            if (spc && (spv = spc->find_variable(&$1)))
            {
              /* We're compiling a stored procedure and found a variable */
              if (! lex->parsing_options.allows_variable)
              {
                my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
                MYSQL_YYABORT;
              }
10023

10024 10025 10026 10027 10028
              Item_splocal *splocal;
              splocal= new Item_splocal($1, spv->offset, spv->type,
                                        lip->get_tok_start_prev() -
                                        lex->sphead->m_tmp_query,
                                        lip->get_tok_end() - lip->get_tok_start_prev());
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10029
#ifndef DBUG_OFF
10030 10031
              if (splocal)
                splocal->m_sp= lex->sphead;
10032
#endif
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              $$ = (Item*) splocal;
              lex->safe_to_cache_query=0;
            }
            else
            {
              SELECT_LEX *sel=Select;
              $$= (sel->parsing_place != IN_HAVING ||
                  sel->get_in_sum_expr() > 0) ?
                  (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
                  (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
            }
          }
10045
        | simple_ident_q { $$= $1; }
10046
        ;
10047 10048

simple_ident_nospvar:
10049 10050 10051 10052 10053 10054 10055 10056 10057 10058
          ident
          {
            SELECT_LEX *sel=Select;
            $$= (sel->parsing_place != IN_HAVING ||
                sel->get_in_sum_expr() > 0) ?
                (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
                (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
          }
        | simple_ident_q { $$= $1; }
        ;
10059 10060

simple_ident_q:
10061
          ident '.' ident
10062
          {
10063 10064
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
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10065

10066 10067 10068 10069 10070 10071 10072 10073
            /*
              FIXME This will work ok in simple_ident_nospvar case because
              we can't meet simple_ident_nospvar in trigger now. But it
              should be changed in future.
            */
            if (lex->sphead && lex->sphead->m_type == TYPE_ENUM_TRIGGER &&
                (!my_strcasecmp(system_charset_info, $1.str, "NEW") ||
                 !my_strcasecmp(system_charset_info, $1.str, "OLD")))
10074
            {
10075 10076
              Item_trigger_field *trg_fld;
              bool new_row= ($1.str[0]=='N' || $1.str[0]=='n');
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10078 10079 10080 10081 10082 10083
              if (lex->trg_chistics.event == TRG_EVENT_INSERT &&
                  !new_row)
              {
                my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0), "OLD", "on INSERT");
                MYSQL_YYABORT;
              }
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10084

10085 10086 10087 10088 10089 10090
              if (lex->trg_chistics.event == TRG_EVENT_DELETE &&
                  new_row)
              {
                my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0), "NEW", "on DELETE");
                MYSQL_YYABORT;
              }
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10091

10092 10093 10094 10095 10096 10097 10098 10099 10100 10101 10102 10103 10104 10105 10106 10107 10108 10109 10110 10111
              DBUG_ASSERT(!new_row ||
                          (lex->trg_chistics.event == TRG_EVENT_INSERT ||
                           lex->trg_chistics.event == TRG_EVENT_UPDATE));
              const bool read_only=
                !(new_row && lex->trg_chistics.action_time == TRG_ACTION_BEFORE);
              if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
                                                    new_row ?
                                                    Item_trigger_field::NEW_ROW:
                                                    Item_trigger_field::OLD_ROW,
                                                    $3.str,
                                                    SELECT_ACL,
                                                    read_only)))
                MYSQL_YYABORT;

              /*
                Let us add this item to list of all Item_trigger_field objects
                in trigger.
              */
              lex->trg_table_fields.link_in_list((uchar*) trg_fld,
                                                 (uchar**) &trg_fld->next_trg_field);
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10112

10113 10114 10115 10116 10117 10118 10119 10120 10121 10122 10123 10124 10125 10126 10127 10128 10129 10130 10131 10132 10133 10134 10135 10136 10137 10138 10139 10140 10141 10142 10143 10144 10145 10146 10147 10148 10149 10150 10151 10152 10153 10154 10155 10156 10157 10158 10159 10160 10161 10162 10163 10164 10165
              $$= (Item *)trg_fld;
            }
            else
            {
              SELECT_LEX *sel= lex->current_select;
              if (sel->no_table_names_allowed)
              {
                my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                         MYF(0), $1.str, thd->where);
              }
              $$= (sel->parsing_place != IN_HAVING ||
                  sel->get_in_sum_expr() > 0) ?
                  (Item*) new Item_field(Lex->current_context(), NullS, $1.str, $3.str) :
                  (Item*) new Item_ref(Lex->current_context(), NullS, $1.str, $3.str);
            }
          }
        | '.' ident '.' ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            SELECT_LEX *sel= lex->current_select;
            if (sel->no_table_names_allowed)
            {
              my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                       MYF(0), $2.str, thd->where);
            }
            $$= (sel->parsing_place != IN_HAVING ||
                sel->get_in_sum_expr() > 0) ?
                (Item*) new Item_field(Lex->current_context(), NullS, $2.str, $4.str) :
                (Item*) new Item_ref(Lex->current_context(), NullS, $2.str, $4.str);
          }
        | ident '.' ident '.' ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            SELECT_LEX *sel= lex->current_select;
            if (sel->no_table_names_allowed)
            {
              my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                       MYF(0), $3.str, thd->where);
            }
            $$= (sel->parsing_place != IN_HAVING ||
                sel->get_in_sum_expr() > 0) ?
                (Item*) new Item_field(Lex->current_context(),
                                       (YYTHD->client_capabilities &
                                       CLIENT_NO_SCHEMA ? NullS : $1.str),
                                       $3.str, $5.str) :
                (Item*) new Item_ref(Lex->current_context(),
                                     (YYTHD->client_capabilities &
                                     CLIENT_NO_SCHEMA ? NullS : $1.str),
                                     $3.str, $5.str);
          }
        ;
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10166 10167

field_ident:
10168 10169
          ident { $$=$1;}
        | ident '.' ident '.' ident
10170 10171 10172 10173
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->db))
            {
10174
              my_error(ER_WRONG_DB_NAME, MYF(0), $1.str);
10175
              MYSQL_YYABORT;
10176
            }
10177 10178
            if (my_strcasecmp(table_alias_charset, $3.str,
                              table->table_name))
10179
            {
10180
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3.str);
10181
              MYSQL_YYABORT;
10182 10183 10184
            }
            $$=$5;
          }
10185
        | ident '.' ident
10186 10187 10188 10189
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->alias))
            {
10190
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $1.str);
10191
              MYSQL_YYABORT;
10192 10193 10194
            }
            $$=$3;
          }
10195 10196
        | '.' ident { $$=$2;} /* For Delphi */
        ;
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10197 10198

table_ident:
10199 10200 10201
          ident { $$=new Table_ident($1); }
        | ident '.' ident { $$=new Table_ident(YYTHD, $1,$3,0);}
        | '.' ident { $$=new Table_ident($2);} /* For Delphi */
10202 10203
        ;

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10204
table_ident_nodb:
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          ident
          {
            LEX_STRING db={(char*) any_db,3};
            $$=new Table_ident(YYTHD, db,$1,0);
          }
10210
        ;
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10211

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IDENT_sys:
10213 10214 10215 10216
          IDENT { $$= $1; }
        | IDENT_QUOTED
          {
            THD *thd= YYTHD;
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10217

10218
            if (thd->charset_is_system_charset)
10219 10220
            {
              CHARSET_INFO *cs= system_charset_info;
10221
              int dummy_error;
10222 10223
              uint wlen= cs->cset->well_formed_len(cs, $1.str,
                                                   $1.str+$1.length,
10224
                                                   $1.length, &dummy_error);
10225 10226
              if (wlen < $1.length)
              {
10227 10228
                my_error(ER_INVALID_CHARACTER_STRING, MYF(0),
                         cs->csname, $1.str + wlen);
10229
                MYSQL_YYABORT;
10230
              }
10231
              $$= $1;
10232
            }
10233 10234 10235 10236 10237
            else
              thd->convert_string(&$$, system_charset_info,
                                  $1.str, $1.length, thd->charset());
          }
        ;
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10238 10239

TEXT_STRING_sys:
10240 10241 10242 10243 10244 10245 10246 10247 10248 10249 10250
          TEXT_STRING
          {
            THD *thd= YYTHD;

            if (thd->charset_is_system_charset)
              $$= $1;
            else
              thd->convert_string(&$$, system_charset_info,
                                  $1.str, $1.length, thd->charset());
          }
        ;
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10251

10252
TEXT_STRING_literal:
10253 10254 10255
          TEXT_STRING
          {
            THD *thd= YYTHD;
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10256

10257 10258 10259 10260 10261 10262 10263
            if (thd->charset_is_collation_connection)
              $$= $1;
            else
              thd->convert_string(&$$, thd->variables.collation_connection,
                                  $1.str, $1.length, thd->charset());
          }
        ;
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10264

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TEXT_STRING_filesystem:
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          TEXT_STRING
          {
            THD *thd= YYTHD;

            if (thd->charset_is_character_set_filesystem)
              $$= $1;
            else
              thd->convert_string(&$$, thd->variables.character_set_filesystem,
                                  $1.str, $1.length, thd->charset());
          }
        ;
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10277

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ident:
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          IDENT_sys    { $$=$1; }
        | READ_ONLY_SYM
          {
            THD *thd= YYTHD;
            $$.str= thd->strmake("read_only",9);
            $$.length= 9;
          }
        | keyword
          {
            THD *thd= YYTHD;
            $$.str= thd->strmake($1.str, $1.length);
            $$.length= $1.length;
          }
        ;
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10294
label_ident:
10295 10296 10297 10298 10299 10300 10301 10302
          IDENT_sys    { $$=$1; }
        | keyword_sp
          {
            THD *thd= YYTHD;
            $$.str= thd->strmake($1.str, $1.length);
            $$.length= $1.length;
          }
        ;
10303

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10304
ident_or_text:
10305 10306 10307 10308
          ident           { $$=$1;}
        | TEXT_STRING_sys { $$=$1;}
        | LEX_HOSTNAME { $$=$1;}
        ;
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10309 10310

user:
10311 10312 10313 10314 10315 10316 10317 10318 10319 10320 10321 10322 10323 10324 10325 10326 10327 10328 10329 10330
          ident_or_text
          {
            THD *thd= YYTHD;
            if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
              MYSQL_YYABORT;
            $$->user = $1;
            $$->host.str= (char *) "%";
            $$->host.length= 1;

            if (check_string_char_length(&$$->user, ER(ER_USERNAME),
                                         USERNAME_CHAR_LENGTH,
                                         system_charset_info, 0))
              MYSQL_YYABORT;
          }
        | ident_or_text '@' ident_or_text
          {
            THD *thd= YYTHD;
            if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
              MYSQL_YYABORT;
            $$->user = $1; $$->host=$3;
10331

10332
            if (check_string_char_length(&$$->user, ER(ER_USERNAME),
10333 10334
                                         USERNAME_CHAR_LENGTH,
                                         system_charset_info, 0) ||
10335
                check_string_byte_length(&$$->host, ER(ER_HOSTNAME),
10336
                                         HOSTNAME_LENGTH))
10337 10338 10339 10340 10341 10342 10343 10344 10345 10346 10347 10348 10349 10350
              MYSQL_YYABORT;
          }
        | CURRENT_USER optional_braces
          {
            if (!($$=(LEX_USER*) YYTHD->alloc(sizeof(st_lex_user))))
              MYSQL_YYABORT;
            /* 
              empty LEX_USER means current_user and 
              will be handled in the  get_current_user() function
              later
            */
            bzero($$, sizeof(LEX_USER));
          }
        ;
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10351

10352
/* Keyword that we allow for identifiers (except SP labels) */
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10353
keyword:
10354 10355 10356 10357 10358 10359 10360 10361 10362 10363 10364 10365
          keyword_sp            {}
        | ASCII_SYM             {}
        | BACKUP_SYM            {}
        | BEGIN_SYM             {}
        | BYTE_SYM              {}
        | CACHE_SYM             {}
        | CHARSET               {}
        | CHECKSUM_SYM          {}
        | CLOSE_SYM             {}
        | COMMENT_SYM           {}
        | COMMIT_SYM            {}
        | CONTAINS_SYM          {}
10366
        | DEALLOCATE_SYM        {}
10367 10368 10369 10370 10371 10372 10373
        | DO_SYM                {}
        | END                   {}
        | EXECUTE_SYM           {}
        | FLUSH_SYM             {}
        | HANDLER_SYM           {}
        | HELP_SYM              {}
        | HOST_SYM              {}
10374
        | INSTALL_SYM           {}
10375 10376 10377 10378 10379
        | LANGUAGE_SYM          {}
        | NO_SYM                {}
        | OPEN_SYM              {}
        | OPTIONS_SYM           {}
        | OWNER_SYM             {}
10380
        | PARSER_SYM            {}
10381
        | PARTITION_SYM         {}
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10382
        | PORT_SYM              {}
10383
        | PREPARE_SYM           {}
10384 10385 10386 10387 10388 10389 10390
        | REMOVE_SYM            {}
        | REPAIR                {}
        | RESET_SYM             {}
        | RESTORE_SYM           {}
        | ROLLBACK_SYM          {}
        | SAVEPOINT_SYM         {}
        | SECURITY_SYM          {}
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10391
        | SERVER_SYM            {}
10392 10393 10394
        | SIGNED_SYM            {}
        | SOCKET_SYM            {}
        | SLAVE                 {}
10395
        | SONAME_SYM            {}
10396 10397 10398 10399
        | START_SYM             {}
        | STOP_SYM              {}
        | TRUNCATE_SYM          {}
        | UNICODE_SYM           {}
10400
        | UNINSTALL_SYM         {}
10401
        | WRAPPER_SYM           {}
10402
        | XA_SYM                {}
10403
        | UPGRADE_SYM           {}
10404
        ;
10405 10406 10407

/*
 * Keywords that we allow for labels in SPs.
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10408 10409 10410
 * Anything that's the beginning of a statement or characteristics
 * must be in keyword above, otherwise we get (harmful) shift/reduce
 * conflicts.
10411 10412
 */
keyword_sp:
10413 10414 10415 10416 10417 10418 10419 10420 10421 10422 10423 10424 10425 10426 10427 10428 10429 10430 10431 10432 10433 10434 10435 10436 10437 10438 10439 10440 10441 10442 10443 10444 10445 10446 10447 10448 10449 10450 10451 10452 10453 10454 10455 10456 10457 10458 10459 10460 10461 10462 10463 10464 10465 10466 10467 10468 10469 10470 10471 10472 10473 10474 10475 10476 10477 10478 10479 10480 10481 10482 10483 10484 10485 10486 10487 10488 10489 10490 10491 10492 10493 10494 10495 10496 10497 10498 10499 10500 10501 10502 10503 10504 10505 10506 10507 10508 10509 10510 10511 10512 10513 10514 10515 10516 10517 10518 10519 10520 10521 10522 10523 10524 10525 10526 10527 10528 10529 10530 10531 10532 10533 10534 10535 10536 10537 10538 10539 10540 10541 10542 10543 10544 10545 10546 10547 10548 10549 10550 10551 10552 10553 10554 10555 10556 10557 10558 10559 10560 10561 10562 10563 10564 10565 10566 10567 10568 10569 10570 10571 10572 10573 10574 10575 10576 10577 10578 10579 10580 10581 10582 10583 10584 10585 10586 10587 10588 10589 10590 10591 10592 10593 10594 10595 10596 10597 10598 10599 10600 10601 10602 10603 10604 10605 10606 10607 10608 10609 10610 10611 10612 10613 10614 10615 10616 10617 10618 10619 10620 10621 10622 10623 10624 10625 10626 10627 10628 10629 10630 10631 10632 10633 10634 10635 10636 10637 10638 10639 10640 10641 10642 10643 10644 10645 10646 10647 10648 10649 10650 10651 10652 10653 10654 10655 10656 10657 10658 10659
          ACTION                   {}
        | ADDDATE_SYM              {}
        | AFTER_SYM                {}
        | AGAINST                  {}
        | AGGREGATE_SYM            {}
        | ALGORITHM_SYM            {}
        | ANY_SYM                  {}
        | AT_SYM                   {}
        | AUTHORS_SYM              {}
        | AUTO_INC                 {}
        | AUTOEXTEND_SIZE_SYM      {}
        | AVG_ROW_LENGTH           {}
        | AVG_SYM                  {}
        | BINLOG_SYM               {}
        | BIT_SYM                  {}
        | BOOL_SYM                 {}
        | BOOLEAN_SYM              {}
        | BTREE_SYM                {}
        | CASCADED                 {}
        | CHAIN_SYM                {}
        | CHANGED                  {}
        | CIPHER_SYM               {}
        | CLIENT_SYM               {}
        | COALESCE                 {}
        | CODE_SYM                 {}
        | COLLATION_SYM            {}
        | COLUMNS                  {}
        | COMMITTED_SYM            {}
        | COMPACT_SYM              {}
        | COMPLETION_SYM           {}
        | COMPRESSED_SYM           {}
        | CONCURRENT               {}
        | CONNECTION_SYM           {}
        | CONSISTENT_SYM           {}
        | CONTRIBUTORS_SYM         {}
        | CUBE_SYM                 {}
        | DATA_SYM                 {}
        | DATAFILE_SYM             {}
        | DATETIME                 {}
        | DATE_SYM                 {}
        | DAY_SYM                  {}
        | DEFINER_SYM              {}
        | DELAY_KEY_WRITE_SYM      {}
        | DES_KEY_FILE             {}
        | DIRECTORY_SYM            {}
        | DISABLE_SYM              {}
        | DISCARD                  {}
        | DISK_SYM                 {}
        | DUMPFILE                 {}
        | DUPLICATE_SYM            {}
        | DYNAMIC_SYM              {}
        | ENDS_SYM                 {}
        | ENUM                     {}
        | ENGINE_SYM               {}
        | ENGINES_SYM              {}
        | ERRORS                   {}
        | ESCAPE_SYM               {}
        | EVENT_SYM                {}
        | EVENTS_SYM               {}
        | EVERY_SYM                {}
        | EXPANSION_SYM            {}
        | EXTENDED_SYM             {}
        | EXTENT_SIZE_SYM          {}
        | FAST_SYM                 {}
        | FOUND_SYM                {}
        | ENABLE_SYM               {}
        | FULL                     {}
        | FILE_SYM                 {}
        | FIRST_SYM                {}
        | FIXED_SYM                {}
        | FRAC_SECOND_SYM          {}
        | GEOMETRY_SYM             {}
        | GEOMETRYCOLLECTION       {}
        | GET_FORMAT               {}
        | GRANTS                   {}
        | GLOBAL_SYM               {}
        | HASH_SYM                 {}
        | HOSTS_SYM                {}
        | HOUR_SYM                 {}
        | IDENTIFIED_SYM           {}
        | INVOKER_SYM              {}
        | IMPORT                   {}
        | INDEXES                  {}
        | INITIAL_SIZE_SYM         {}
        | ISOLATION                {}
        | ISSUER_SYM               {}
        | INNOBASE_SYM             {}
        | INSERT_METHOD            {}
        | KEY_BLOCK_SIZE           {}
        | LAST_SYM                 {}
        | LEAVES                   {}
        | LESS_SYM                 {}
        | LEVEL_SYM                {}
        | LINESTRING               {}
        | LIST_SYM                 {}
        | LOCAL_SYM                {}
        | LOCKS_SYM                {}
        | LOGFILE_SYM              {}
        | LOGS_SYM                 {}
        | MAX_ROWS                 {}
        | MASTER_SYM               {}
        | MASTER_HOST_SYM          {}
        | MASTER_PORT_SYM          {}
        | MASTER_LOG_FILE_SYM      {}
        | MASTER_LOG_POS_SYM       {}
        | MASTER_USER_SYM          {}
        | MASTER_PASSWORD_SYM      {}
        | MASTER_SERVER_ID_SYM     {}
        | MASTER_CONNECT_RETRY_SYM {}
        | MASTER_SSL_SYM           {}
        | MASTER_SSL_CA_SYM        {}
        | MASTER_SSL_CAPATH_SYM    {}
        | MASTER_SSL_CERT_SYM      {}
        | MASTER_SSL_CIPHER_SYM    {}
        | MASTER_SSL_KEY_SYM       {}
        | MAX_CONNECTIONS_PER_HOUR {}
        | MAX_QUERIES_PER_HOUR     {}
        | MAX_SIZE_SYM             {}
        | MAX_UPDATES_PER_HOUR     {}
        | MAX_USER_CONNECTIONS_SYM {}
        | MAX_VALUE_SYM            {}
        | MEDIUM_SYM               {}
        | MEMORY_SYM               {}
        | MERGE_SYM                {}
        | MICROSECOND_SYM          {}
        | MIGRATE_SYM              {}
        | MINUTE_SYM               {}
        | MIN_ROWS                 {}
        | MODIFY_SYM               {}
        | MODE_SYM                 {}
        | MONTH_SYM                {}
        | MULTILINESTRING          {}
        | MULTIPOINT               {}
        | MULTIPOLYGON             {}
        | MUTEX_SYM                {}
        | NAME_SYM                 {}
        | NAMES_SYM                {}
        | NATIONAL_SYM             {}
        | NCHAR_SYM                {}
        | NDBCLUSTER_SYM           {}
        | NEXT_SYM                 {}
        | NEW_SYM                  {}
        | NO_WAIT_SYM              {}
        | NODEGROUP_SYM            {}
        | NONE_SYM                 {}
        | NVARCHAR_SYM             {}
        | OFFSET_SYM               {}
        | OLD_PASSWORD             {}
        | ONE_SHOT_SYM             {}
        | ONE_SYM                  {}
        | PACK_KEYS_SYM            {}
        | PARTIAL                  {}
        | PARTITIONING_SYM         {}
        | PARTITIONS_SYM           {}
        | PASSWORD                 {}
        | PHASE_SYM                {}
        | PLUGIN_SYM               {}
        | PLUGINS_SYM              {}
        | POINT_SYM                {}
        | POLYGON                  {}
        | PRESERVE_SYM             {}
        | PREV_SYM                 {}
        | PRIVILEGES               {}
        | PROCESS                  {}
        | PROCESSLIST_SYM          {}
        | QUARTER_SYM              {}
        | QUERY_SYM                {}
        | QUICK                    {}
        | REBUILD_SYM              {}
        | RECOVER_SYM              {}
        | REDO_BUFFER_SIZE_SYM     {}
        | REDOFILE_SYM             {}
        | REDUNDANT_SYM            {}
        | RELAY_LOG_FILE_SYM       {}
        | RELAY_LOG_POS_SYM        {}
        | RELAY_THREAD             {}
        | RELOAD                   {}
        | REORGANIZE_SYM           {}
        | REPEATABLE_SYM           {}
        | REPLICATION              {}
        | RESOURCES                {}
        | RESUME_SYM               {}
        | RETURNS_SYM              {}
        | ROLLUP_SYM               {}
        | ROUTINE_SYM              {}
        | ROWS_SYM                 {}
        | ROW_FORMAT_SYM           {}
        | ROW_SYM                  {}
        | RTREE_SYM                {}
        | SCHEDULE_SYM             {}
        | SECOND_SYM               {}
        | SERIAL_SYM               {}
        | SERIALIZABLE_SYM         {}
        | SESSION_SYM              {}
        | SIMPLE_SYM               {}
        | SHARE_SYM                {}
        | SHUTDOWN                 {}
        | SNAPSHOT_SYM             {}
        | SOUNDS_SYM               {}
        | SQL_CACHE_SYM            {}
        | SQL_BUFFER_RESULT        {}
        | SQL_NO_CACHE_SYM         {}
        | SQL_THREAD               {}
        | STARTS_SYM               {}
        | STATUS_SYM               {}
        | STORAGE_SYM              {}
        | STRING_SYM               {}
        | SUBDATE_SYM              {}
        | SUBJECT_SYM              {}
        | SUBPARTITION_SYM         {}
        | SUBPARTITIONS_SYM        {}
        | SUPER_SYM                {}
        | SUSPEND_SYM              {}
        | TABLES                   {}
        | TABLESPACE               {}
        | TEMPORARY                {}
        | TEMPTABLE_SYM            {}
        | TEXT_SYM                 {}
        | THAN_SYM                 {}
        | TRANSACTION_SYM          {}
        | TRIGGERS_SYM             {}
        | TIMESTAMP                {}
        | TIMESTAMP_ADD            {}
        | TIMESTAMP_DIFF           {}
        | TIME_SYM                 {}
        | TYPES_SYM                {}
        | TYPE_SYM                 {}
        | UDF_RETURNS_SYM          {}
        | FUNCTION_SYM             {}
        | UNCOMMITTED_SYM          {}
        | UNDEFINED_SYM            {}
        | UNDO_BUFFER_SIZE_SYM     {}
        | UNDOFILE_SYM             {}
        | UNKNOWN_SYM              {}
        | UNTIL_SYM                {}
        | USER                     {}
        | USE_FRM                  {}
        | VARIABLES                {}
        | VIEW_SYM                 {}
        | VALUE_SYM                {}
        | WARNINGS                 {}
        | WAIT_SYM                 {}
        | WEEK_SYM                 {}
        | WORK_SYM                 {}
        | X509_SYM                 {}
        | YEAR_SYM                 {}
        ;
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/* Option functions */

set:
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          SET opt_option
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SET_OPTION;
            mysql_init_select(lex);
            lex->option_type=OPT_SESSION;
            lex->var_list.empty();
            lex->one_shot_set= 0;
          }
          option_value_list
          {}
        ;
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opt_option:
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          /* empty */ {}
        | OPTION {}
        ;
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option_value_list:
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          option_type_value
        | option_value_list ',' option_type_value
        ;
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option_type_value:
          {
10689 10690 10691
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
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10693 10694
            if (lex->sphead)
            {
10695
              /*
10696 10697 10698 10699 10700 10701 10702 10703
                If we are in SP we want have own LEX for each assignment.
                This is mostly because it is hard for several sp_instr_set
                and sp_instr_set_trigger instructions share one LEX.
                (Well, it is theoretically possible but adds some extra
                overhead on preparation for execution stage and IMO less
                robust).

                QQ: May be we should simply prohibit group assignments in SP?
10704
              */
10705 10706 10707 10708 10709 10710 10711 10712 10713 10714 10715 10716 10717 10718 10719 10720 10721
              lex->sphead->reset_lex(thd);
              lex= thd->lex;

              /* Set new LEX as if we at start of set rule. */
              lex->sql_command= SQLCOM_SET_OPTION;
              mysql_init_select(lex);
              lex->option_type=OPT_SESSION;
              lex->var_list.empty();
              lex->one_shot_set= 0;
              lex->sphead->m_tmp_query= lip->get_tok_start();
            }
          }
          ext_option_value
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
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10723 10724 10725
            if (lex->sphead)
            {
              sp_head *sp= lex->sphead;
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              if (!lex->var_list.is_empty())
              {
                /*
                  We have assignment to user or system variable or
                  option setting, so we should construct sp_instr_stmt
                  for it.
                */
                LEX_STRING qbuff;
                sp_instr_stmt *i;

                if (!(i= new sp_instr_stmt(sp->instructions(), lex->spcont,
                                           lex)))
                  MYSQL_YYABORT;
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10740

10741 10742 10743 10744 10745 10746 10747 10748 10749 10750 10751 10752 10753
                /*
                  Extract the query statement from the tokenizer.  The
                  end is either lip->ptr, if there was no lookahead,
                  lip->tok_end otherwise.
                */
                if (yychar == YYEMPTY)
                  qbuff.length= lip->get_ptr() - sp->m_tmp_query;
                else
                  qbuff.length= lip->get_tok_end() - sp->m_tmp_query;

                if (!(qbuff.str= (char*) alloc_root(thd->mem_root,
                                                    qbuff.length + 5)))
                  MYSQL_YYABORT;
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10754

10755 10756 10757 10758 10759 10760 10761
                strmake(strmake(qbuff.str, "SET ", 4), sp->m_tmp_query,
                        qbuff.length);
                qbuff.length+= 4;
                i->m_query= qbuff;
                sp->add_instr(i);
              }
              lex->sphead->restore_lex(thd);
10762 10763
            }
          }
10764
        ;
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10765 10766

option_type:
10767 10768 10769 10770 10771
          option_type2    {}
        | GLOBAL_SYM  { $$=OPT_GLOBAL; }
        | LOCAL_SYM   { $$=OPT_SESSION; }
        | SESSION_SYM { $$=OPT_SESSION; }
        ;
10772 10773

option_type2:
10774 10775 10776
          /* empty */ { $$= OPT_DEFAULT; }
        | ONE_SHOT_SYM { Lex->one_shot_set= 1; $$= OPT_SESSION; }
        ;
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10777 10778

opt_var_type:
10779 10780 10781 10782 10783
          /* empty */ { $$=OPT_SESSION; }
        | GLOBAL_SYM  { $$=OPT_GLOBAL; }
        | LOCAL_SYM   { $$=OPT_SESSION; }
        | SESSION_SYM { $$=OPT_SESSION; }
        ;
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10784 10785

opt_var_ident_type:
10786 10787 10788 10789 10790
          /* empty */     { $$=OPT_DEFAULT; }
        | GLOBAL_SYM '.'  { $$=OPT_GLOBAL; }
        | LOCAL_SYM '.'   { $$=OPT_SESSION; }
        | SESSION_SYM '.' { $$=OPT_SESSION; }
        ;
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10791

10792
ext_option_value:
10793 10794 10795
          sys_option_value
        | option_type2 option_value
        ;
10796

10797
sys_option_value:
10798
          option_type internal_variable_name equal set_expr_or_default
10799
          {
10800 10801 10802
            LEX *lex=Lex;

            if ($2.var == trg_new_row_fake_var)
10803
            {
10804 10805 10806 10807 10808 10809 10810 10811 10812 10813 10814 10815 10816 10817 10818 10819 10820 10821 10822 10823 10824 10825 10826 10827 10828 10829 10830 10831 10832 10833 10834 10835 10836 10837 10838 10839 10840 10841 10842 10843 10844 10845 10846 10847 10848 10849 10850 10851
              /* We are in trigger and assigning value to field of new row */
              Item *it;
              Item_trigger_field *trg_fld;
              sp_instr_set_trigger_field *sp_fld;
              LINT_INIT(sp_fld);
              if ($1)
              {
                my_parse_error(ER(ER_SYNTAX_ERROR));
                MYSQL_YYABORT;
              }
              if ($4)
                it= $4;
              else
              {
                /* QQ: Shouldn't this be field's default value ? */
                it= new Item_null();
              }

              DBUG_ASSERT(lex->trg_chistics.action_time == TRG_ACTION_BEFORE &&
                          (lex->trg_chistics.event == TRG_EVENT_INSERT ||
                           lex->trg_chistics.event == TRG_EVENT_UPDATE));
              if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
                                                    Item_trigger_field::NEW_ROW,
                                                    $2.base_name.str,
                                                    UPDATE_ACL, FALSE)) ||
                  !(sp_fld= new sp_instr_set_trigger_field(lex->sphead->
                                                           instructions(),
                                                           lex->spcont,
                                                           trg_fld,
                                                           it, lex)))
                MYSQL_YYABORT;

              /*
                Let us add this item to list of all Item_trigger_field
                objects in trigger.
              */
              lex->trg_table_fields.link_in_list((uchar *)trg_fld,
                                                 (uchar **) &trg_fld->
                                                   next_trg_field);

              lex->sphead->add_instr(sp_fld);
            }
            else if ($2.var)
            { /* System variable */
              if ($1)
                lex->option_type= $1;
              lex->var_list.push_back(new set_var(lex->option_type, $2.var,
                                      &$2.base_name, $4));
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            }
            else
10854
            {
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              /* An SP local variable */
              sp_pcontext *ctx= lex->spcont;
              sp_variable_t *spv;
              sp_instr_set *sp_set;
              Item *it;
              if ($1)
              {
                my_parse_error(ER(ER_SYNTAX_ERROR));
                MYSQL_YYABORT;
              }
10865

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              spv= ctx->find_variable(&$2.base_name);
10867

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              if ($4)
                it= $4;
              else if (spv->dflt)
                it= spv->dflt;
              else
                it= new Item_null();
              sp_set= new sp_instr_set(lex->sphead->instructions(), ctx,
                                       spv->offset, it, spv->type, lex, TRUE);
              lex->sphead->add_instr(sp_set);
            }
10878
          }
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        | option_type TRANSACTION_SYM ISOLATION LEVEL_SYM isolation_types
          {
            LEX *lex=Lex;
            lex->option_type= $1;
            lex->var_list.push_back(new set_var(lex->option_type,
                                                find_sys_var(YYTHD, "tx_isolation"),
                                                &null_lex_str,
                                                new Item_int((int32) $5)));
10887
          }
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        ;

option_value:
          '@' ident_or_text equal expr
10892
          {
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            Lex->var_list.push_back(new set_var_user(new Item_func_set_user_var($2,$4)));
          }
        | '@' '@' opt_var_ident_type internal_variable_name equal set_expr_or_default
          {
            LEX *lex=Lex;
            lex->var_list.push_back(new set_var($3, $4.var, &$4.base_name, $6));
          }
        | charset old_or_new_charset_name_or_default
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            $2= $2 ? $2: global_system_variables.character_set_client;
            lex->var_list.push_back(new set_var_collation_client($2,thd->variables.collation_database,$2));
10906
          }
10907
        | NAMES_SYM equal expr
10908 10909
          {
            LEX *lex= Lex;
10910
            sp_pcontext *spc= lex->spcont;
10911
            LEX_STRING names;
10912

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            names.str= (char *)"names";
            names.length= 5;
            if (spc && spc->find_variable(&names))
10916
              my_error(ER_SP_BAD_VAR_SHADOW, MYF(0), names.str);
10917
            else
10918
              my_parse_error(ER(ER_SYNTAX_ERROR));
10919

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            MYSQL_YYABORT;
          }
        | NAMES_SYM charset_name_or_default opt_collate
          {
            LEX *lex= Lex;
            $2= $2 ? $2 : global_system_variables.character_set_client;
            $3= $3 ? $3 : $2;
            if (!my_charset_same($2,$3))
            {
              my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                       $3->name, $2->csname);
              MYSQL_YYABORT;
            }
            lex->var_list.push_back(new set_var_collation_client($3,$3,$3));
          }
        | PASSWORD equal text_or_password
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            LEX_USER *user;
10940
            sp_pcontext *spc= lex->spcont;
10941
            LEX_STRING pw;
10942

10943 10944 10945 10946
            pw.str= (char *)"password";
            pw.length= 8;
            if (spc && spc->find_variable(&pw))
            {
10947
              my_error(ER_SP_BAD_VAR_SHADOW, MYF(0), pw.str);
10948 10949 10950 10951 10952 10953 10954 10955 10956 10957 10958 10959 10960
              MYSQL_YYABORT;
            }
            if (!(user=(LEX_USER*) thd->alloc(sizeof(LEX_USER))))
              MYSQL_YYABORT;
            user->host=null_lex_str;
            user->user.str=thd->security_ctx->priv_user;
            thd->lex->var_list.push_back(new set_var_password(user, $3));
          }
        | PASSWORD FOR_SYM user equal text_or_password
          {
            Lex->var_list.push_back(new set_var_password($3,$5));
          }
        ;
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10961

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internal_variable_name:
10963 10964 10965 10966 10967 10968 10969 10970 10971
          ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            sp_pcontext *spc= lex->spcont;
            sp_variable_t *spv;

            /* We have to lookup here since local vars can shadow sysvars */
            if (!spc || !(spv = spc->find_variable(&$1)))
10972
            {
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              /* Not an SP local variable */
              sys_var *tmp=find_sys_var(thd, $1.str, $1.length);
              if (!tmp)
                MYSQL_YYABORT;
              $$.var= tmp;
              $$.base_name= null_lex_str;
              if (spc && tmp == &sys_autocommit)
              {
                /*
                  We don't allow setting AUTOCOMMIT from a stored function
                  or trigger.
                */
                lex->sphead->m_flags|= sp_head::HAS_SET_AUTOCOMMIT_STMT;
              }
10987
            }
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            else
            {
              /* An SP local variable */
              $$.var= NULL;
              $$.base_name= $1;
            }
          }
        | ident '.' ident
          {
10997
            LEX *lex= Lex;
10998 10999
            if (check_reserved_words(&$1))
            {
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              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
11002
            }
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            if (lex->sphead && lex->sphead->m_type == TYPE_ENUM_TRIGGER &&
                (!my_strcasecmp(system_charset_info, $1.str, "NEW") || 
                 !my_strcasecmp(system_charset_info, $1.str, "OLD")))
            {
              if ($1.str[0]=='O' || $1.str[0]=='o')
              {
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                my_error(ER_TRG_CANT_CHANGE_ROW, MYF(0), "OLD", "");
11010
                MYSQL_YYABORT;
11011 11012 11013
              }
              if (lex->trg_chistics.event == TRG_EVENT_DELETE)
              {
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11014 11015
                my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0),
                         "NEW", "on DELETE");
11016
                MYSQL_YYABORT;
11017 11018 11019
              }
              if (lex->trg_chistics.action_time == TRG_ACTION_AFTER)
              {
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11020
                my_error(ER_TRG_CANT_CHANGE_ROW, MYF(0), "NEW", "after ");
11021
                MYSQL_YYABORT;
11022 11023
              }
              /* This special combination will denote field of NEW row */
11024
              $$.var= trg_new_row_fake_var;
11025 11026 11027 11028
              $$.base_name= $3;
            }
            else
            {
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11029
              sys_var *tmp=find_sys_var(YYTHD, $3.str, $3.length);
11030
              if (!tmp)
11031
                MYSQL_YYABORT;
11032
              if (!tmp->is_struct())
11033
                my_error(ER_VARIABLE_IS_NOT_STRUCT, MYF(0), $3.str);
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              $$.var= tmp;
              $$.base_name= $1;
            }
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          }
        | DEFAULT '.' ident
          {
            sys_var *tmp=find_sys_var(YYTHD, $3.str, $3.length);
            if (!tmp)
              MYSQL_YYABORT;
            if (!tmp->is_struct())
              my_error(ER_VARIABLE_IS_NOT_STRUCT, MYF(0), $3.str);
            $$.var= tmp;
            $$.base_name.str=    (char*) "default";
            $$.base_name.length= 7;
          }
11049
        ;
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11050 11051

isolation_types:
11052 11053 11054 11055 11056
          READ_SYM UNCOMMITTED_SYM { $$= ISO_READ_UNCOMMITTED; }
        | READ_SYM COMMITTED_SYM   { $$= ISO_READ_COMMITTED; }
        | REPEATABLE_SYM READ_SYM  { $$= ISO_REPEATABLE_READ; }
        | SERIALIZABLE_SYM         { $$= ISO_SERIALIZABLE; }
        ;
11057

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11058
text_or_password:
11059 11060 11061 11062 11063 11064 11065 11066 11067 11068 11069 11070 11071 11072
          TEXT_STRING { $$=$1.str;}
        | PASSWORD '(' TEXT_STRING ')'
          {
            $$= $3.length ? YYTHD->variables.old_passwords ?
              Item_func_old_password::alloc(YYTHD, $3.str) :
              Item_func_password::alloc(YYTHD, $3.str) :
              $3.str;
          }
        | OLD_PASSWORD '(' TEXT_STRING ')'
          {
            $$= $3.length ? Item_func_old_password::alloc(YYTHD, $3.str) :
              $3.str;
          }
        ;
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11073

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11074

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11075
set_expr_or_default:
11076 11077 11078 11079 11080 11081
          expr { $$=$1; }
        | DEFAULT { $$=0; }
        | ON     { $$=new Item_string("ON",  2, system_charset_info); }
        | ALL    { $$=new Item_string("ALL", 3, system_charset_info); }
        | BINARY { $$=new Item_string("binary", 6, system_charset_info); }
        ;
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11082

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/* Lock function */

lock:
11086 11087 11088
          LOCK_SYM table_or_tables
          {
            LEX *lex= Lex;
11089

11090 11091 11092 11093 11094 11095 11096 11097 11098 11099
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "LOCK");
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_LOCK_TABLES;
          }
          table_lock_list
          {}
        ;
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table_or_tables:
11102 11103 11104
          TABLE_SYM
        | TABLES
        ;
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11105 11106

table_lock_list:
11107 11108 11109
          table_lock
        | table_lock_list ',' table_lock
        ;
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11110 11111

table_lock:
11112 11113 11114 11115 11116
          table_ident opt_table_alias lock_option
          {
            if (!Select->add_table_to_list(YYTHD, $1, $2, 0, (thr_lock_type) $3))
              MYSQL_YYABORT;
          }
11117
        ;
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11118 11119

lock_option:
11120 11121 11122 11123
          READ_SYM               { $$= TL_READ_NO_INSERT; }
        | WRITE_SYM              { $$= TL_WRITE_DEFAULT; }
        | LOW_PRIORITY WRITE_SYM { $$= TL_WRITE_LOW_PRIORITY; }
        | READ_SYM LOCAL_SYM     { $$= TL_READ; }
11124
        ;
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11125 11126

unlock:
11127 11128 11129
          UNLOCK_SYM
          {
            LEX *lex= Lex;
11130

11131 11132 11133 11134 11135 11136 11137 11138 11139
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "UNLOCK");
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_UNLOCK_TABLES;
          }
          table_or_tables
          {}
11140
        ;
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11141

11142
/*
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11143
** Handler: direct access to ISAM functions
11144 11145 11146
*/

handler:
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          HANDLER_SYM table_ident OPEN_SYM opt_table_alias
          {
            LEX *lex= Lex;
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_HA_OPEN;
            if (!lex->current_select->add_table_to_list(lex->thd, $2, $4, 0))
              MYSQL_YYABORT;
          }
        | HANDLER_SYM table_ident_nodb CLOSE_SYM
          {
            LEX *lex= Lex;
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
              MYSQL_YYABORT;
            }
            lex->sql_command = SQLCOM_HA_CLOSE;
            if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
              MYSQL_YYABORT;
          }
        | HANDLER_SYM table_ident_nodb READ_SYM
          {
            LEX *lex=Lex;
            if (lex->sphead)
            {
              my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
              MYSQL_YYABORT;
            }
            lex->expr_allows_subselect= FALSE;
            lex->sql_command = SQLCOM_HA_READ;
            lex->ha_rkey_mode= HA_READ_KEY_EXACT; /* Avoid purify warnings */
            lex->current_select->select_limit= new Item_int((int32) 1);
            lex->current_select->offset_limit= 0;
            if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
              MYSQL_YYABORT;
          }
          handler_read_or_scan where_clause opt_limit_clause
          {
            Lex->expr_allows_subselect= TRUE;
          }
11191
        ;
11192

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11193
handler_read_or_scan:
11194
          handler_scan_function       { Lex->ident= null_lex_str; }
11195
        | ident handler_rkey_function { Lex->ident= $1; }
11196
        ;
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11197 11198

handler_scan_function:
11199 11200
          FIRST_SYM { Lex->ha_read_mode = RFIRST; }
        | NEXT_SYM  { Lex->ha_read_mode = RNEXT;  }
11201
        ;
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handler_rkey_function:
11204 11205 11206 11207 11208 11209 11210 11211 11212 11213 11214 11215 11216 11217
          FIRST_SYM { Lex->ha_read_mode = RFIRST; }
        | NEXT_SYM  { Lex->ha_read_mode = RNEXT;  }
        | PREV_SYM  { Lex->ha_read_mode = RPREV;  }
        | LAST_SYM  { Lex->ha_read_mode = RLAST;  }
        | handler_rkey_mode
          {
            LEX *lex=Lex;
            lex->ha_read_mode = RKEY;
            lex->ha_rkey_mode=$1;
            if (!(lex->insert_list = new List_item))
              MYSQL_YYABORT;
          }
          '(' values ')'
          {}
11218
        ;
11219 11220

handler_rkey_mode:
11221 11222 11223 11224 11225
          EQ     { $$=HA_READ_KEY_EXACT;   }
        | GE     { $$=HA_READ_KEY_OR_NEXT; }
        | LE     { $$=HA_READ_KEY_OR_PREV; }
        | GT_SYM { $$=HA_READ_AFTER_KEY;   }
        | LT     { $$=HA_READ_BEFORE_KEY;  }
11226
        ;
11227

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11228 11229 11230
/* GRANT / REVOKE */

revoke:
11231 11232
          REVOKE clear_privileges revoke_command
          {}
11233 11234 11235
        ;

revoke_command:
11236
          grant_privileges ON opt_table grant_ident FROM grant_list
11237
          {
11238 11239 11240 11241 11242
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_REVOKE;
            lex->type= 0;
          }
        | grant_privileges ON FUNCTION_SYM grant_ident FROM grant_list
11243
          {
11244 11245 11246 11247 11248 11249 11250 11251 11252 11253 11254 11255 11256 11257 11258 11259 11260 11261 11262 11263 11264 11265 11266 11267 11268
            LEX *lex= Lex;
            if (lex->columns.elements)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_REVOKE;
            lex->type= TYPE_ENUM_FUNCTION;
          }
        | grant_privileges ON PROCEDURE grant_ident FROM grant_list
          {
            LEX *lex= Lex;
            if (lex->columns.elements)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_REVOKE;
            lex->type= TYPE_ENUM_PROCEDURE;
          }
        | ALL opt_privileges ',' GRANT OPTION FROM grant_list
          {
            Lex->sql_command = SQLCOM_REVOKE_ALL;
          }
        ;
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11269 11270

grant:
11271 11272
          GRANT clear_privileges grant_command
          {}
11273 11274 11275
        ;

grant_command:
11276 11277
          grant_privileges ON opt_table grant_ident TO_SYM grant_list
          require_clause grant_options
11278
          {
11279 11280 11281 11282 11283 11284
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_GRANT;
            lex->type= 0;
          }
        | grant_privileges ON FUNCTION_SYM grant_ident TO_SYM grant_list
          require_clause grant_options
11285
          {
11286 11287 11288 11289 11290 11291 11292 11293 11294 11295 11296 11297 11298 11299 11300 11301 11302 11303 11304 11305
            LEX *lex= Lex;
            if (lex->columns.elements)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_GRANT;
            lex->type= TYPE_ENUM_FUNCTION;
          }
        | grant_privileges ON PROCEDURE grant_ident TO_SYM grant_list
          require_clause grant_options
          {
            LEX *lex= Lex;
            if (lex->columns.elements)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            lex->sql_command= SQLCOM_GRANT;
            lex->type= TYPE_ENUM_PROCEDURE;
11306 11307
          }
        ;
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11308

11309
opt_table:
11310 11311 11312 11313
          /* Empty */
        | TABLE_SYM
        ;

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grant_privileges:
11315 11316 11317 11318 11319 11320
          object_privilege_list {}
        | ALL opt_privileges
          { 
            Lex->all_privileges= 1; 
            Lex->grant= GLOBAL_ACLS;
          }
11321
        ;
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11322

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11323
opt_privileges:
11324 11325 11326
          /* empty */
        | PRIVILEGES
        ;
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11327

11328
object_privilege_list:
11329 11330 11331
          object_privilege
        | object_privilege_list ',' object_privilege
        ;
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11332

11333
object_privilege:
11334 11335 11336 11337 11338 11339 11340 11341 11342 11343 11344 11345 11346 11347 11348 11349 11350 11351 11352 11353 11354 11355 11356 11357 11358 11359 11360 11361 11362 11363 11364 11365 11366 11367 11368 11369 11370 11371
          SELECT_SYM
          { Lex->which_columns = SELECT_ACL;}
          opt_column_list {}
        | INSERT
          { Lex->which_columns = INSERT_ACL;}
          opt_column_list {}
        | UPDATE_SYM
          { Lex->which_columns = UPDATE_ACL; }
          opt_column_list {}
        | REFERENCES
          { Lex->which_columns = REFERENCES_ACL;}
          opt_column_list {}
        | DELETE_SYM              { Lex->grant |= DELETE_ACL;}
        | USAGE                   {}
        | INDEX_SYM               { Lex->grant |= INDEX_ACL;}
        | ALTER                   { Lex->grant |= ALTER_ACL;}
        | CREATE                  { Lex->grant |= CREATE_ACL;}
        | DROP                    { Lex->grant |= DROP_ACL;}
        | EXECUTE_SYM             { Lex->grant |= EXECUTE_ACL;}
        | RELOAD                  { Lex->grant |= RELOAD_ACL;}
        | SHUTDOWN                { Lex->grant |= SHUTDOWN_ACL;}
        | PROCESS                 { Lex->grant |= PROCESS_ACL;}
        | FILE_SYM                { Lex->grant |= FILE_ACL;}
        | GRANT OPTION            { Lex->grant |= GRANT_ACL;}
        | SHOW DATABASES          { Lex->grant |= SHOW_DB_ACL;}
        | SUPER_SYM               { Lex->grant |= SUPER_ACL;}
        | CREATE TEMPORARY TABLES { Lex->grant |= CREATE_TMP_ACL;}
        | LOCK_SYM TABLES         { Lex->grant |= LOCK_TABLES_ACL; }
        | REPLICATION SLAVE       { Lex->grant |= REPL_SLAVE_ACL; }
        | REPLICATION CLIENT_SYM  { Lex->grant |= REPL_CLIENT_ACL; }
        | CREATE VIEW_SYM         { Lex->grant |= CREATE_VIEW_ACL; }
        | SHOW VIEW_SYM           { Lex->grant |= SHOW_VIEW_ACL; }
        | CREATE ROUTINE_SYM      { Lex->grant |= CREATE_PROC_ACL; }
        | ALTER ROUTINE_SYM       { Lex->grant |= ALTER_PROC_ACL; }
        | CREATE USER             { Lex->grant |= CREATE_USER_ACL; }
        | EVENT_SYM               { Lex->grant |= EVENT_ACL;}
        | TRIGGER_SYM             { Lex->grant |= TRIGGER_ACL; }
        ;
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11372

11373
opt_and:
11374 11375 11376
          /* empty */ {}
        | AND_SYM {}
        ;
11377 11378

require_list:
11379 11380 11381
          require_list_element opt_and require_list
        | require_list_element
        ;
11382 11383

require_list_element:
11384 11385 11386 11387 11388 11389 11390 11391 11392 11393 11394 11395 11396 11397 11398 11399 11400 11401 11402 11403 11404 11405 11406 11407 11408 11409 11410 11411 11412 11413 11414
          SUBJECT_SYM TEXT_STRING
          {
            LEX *lex=Lex;
            if (lex->x509_subject)
            {
              my_error(ER_DUP_ARGUMENT, MYF(0), "SUBJECT");
              MYSQL_YYABORT;
            }
            lex->x509_subject=$2.str;
          }
        | ISSUER_SYM TEXT_STRING
          {
            LEX *lex=Lex;
            if (lex->x509_issuer)
            {
              my_error(ER_DUP_ARGUMENT, MYF(0), "ISSUER");
              MYSQL_YYABORT;
            }
            lex->x509_issuer=$2.str;
          }
        | CIPHER_SYM TEXT_STRING
          {
            LEX *lex=Lex;
            if (lex->ssl_cipher)
            {
              my_error(ER_DUP_ARGUMENT, MYF(0), "CIPHER");
              MYSQL_YYABORT;
            }
            lex->ssl_cipher=$2.str;
          }
        ;
11415

11416
grant_ident:
11417 11418 11419
          '*'
          {
            LEX *lex= Lex;
11420
            size_t dummy;
11421
            if (lex->copy_db_to(&lex->current_select->db, &dummy))
11422
              MYSQL_YYABORT;
11423 11424 11425 11426 11427
            if (lex->grant == GLOBAL_ACLS)
              lex->grant = DB_ACLS & ~GRANT_ACL;
            else if (lex->columns.elements)
            {
              my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
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11428
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
11429 11430 11431 11432 11433 11434 11435 11436 11437 11438 11439 11440
              MYSQL_YYABORT;
            }
          }
        | ident '.' '*'
          {
            LEX *lex= Lex;
            lex->current_select->db = $1.str;
            if (lex->grant == GLOBAL_ACLS)
              lex->grant = DB_ACLS & ~GRANT_ACL;
            else if (lex->columns.elements)
            {
              my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
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11441
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
11442 11443 11444 11445 11446 11447 11448 11449 11450 11451 11452 11453
              MYSQL_YYABORT;
            }
          }
        | '*' '.' '*'
          {
            LEX *lex= Lex;
            lex->current_select->db = NULL;
            if (lex->grant == GLOBAL_ACLS)
              lex->grant= GLOBAL_ACLS & ~GRANT_ACL;
            else if (lex->columns.elements)
            {
              my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
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11454
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
11455 11456 11457 11458 11459 11460 11461
              MYSQL_YYABORT;
            }
          }
        | table_ident
          {
            LEX *lex=Lex;
            if (!lex->current_select->add_table_to_list(lex->thd, $1,NULL,
11462
                                                        TL_OPTION_UPDATING))
11463 11464 11465 11466 11467
              MYSQL_YYABORT;
            if (lex->grant == GLOBAL_ACLS)
              lex->grant =  TABLE_ACLS & ~GRANT_ACL;
          }
        ;
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11468 11469

user_list:
11470 11471 11472 11473 11474 11475 11476 11477 11478 11479 11480
          user
          {
            if (Lex->users_list.push_back($1))
              MYSQL_YYABORT;
          }
        | user_list ',' user
          {
            if (Lex->users_list.push_back($3))
              MYSQL_YYABORT;
          }
        ;
11481 11482

grant_list:
11483 11484 11485 11486 11487 11488 11489 11490 11491 11492 11493
          grant_user
          {
            if (Lex->users_list.push_back($1))
              MYSQL_YYABORT;
          }
        | grant_list ',' grant_user
          {
            if (Lex->users_list.push_back($3))
              MYSQL_YYABORT;
          }
        ;
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11494 11495

grant_user:
11496 11497 11498 11499 11500 11501 11502 11503 11504 11505 11506 11507 11508 11509 11510 11511 11512 11513 11514 11515 11516 11517 11518 11519 11520 11521 11522 11523 11524
          user IDENTIFIED_SYM BY TEXT_STRING
          {
            $$=$1; $1->password=$4;
            if ($4.length)
            {
              if (YYTHD->variables.old_passwords)
              {
                char *buff= 
                  (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH_323+1);
                if (buff)
                  make_scrambled_password_323(buff, $4.str);
                $1->password.str= buff;
                $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH_323;
              }
              else
              {
                char *buff= 
                  (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH+1);
                if (buff)
                  make_scrambled_password(buff, $4.str);
                $1->password.str= buff;
                $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH;
              }
            }
          }
        | user IDENTIFIED_SYM BY PASSWORD TEXT_STRING
          { $$= $1; $1->password= $5; }
        | user
          { $$= $1; $1->password= null_lex_str; }
11525
        ;
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11526 11527

opt_column_list:
11528 11529 11530 11531 11532 11533 11534
          /* empty */
          {
            LEX *lex=Lex;
            lex->grant |= lex->which_columns;
          }
        | '(' column_list ')'
        ;
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11535 11536

column_list:
11537 11538 11539
          column_list ',' column_list_id
        | column_list_id
        ;
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11540 11541

column_list_id:
11542 11543 11544 11545 11546 11547 11548 11549 11550 11551 11552 11553 11554 11555 11556 11557 11558 11559
          ident
          {
            String *new_str = new (YYTHD->mem_root) String((const char*) $1.str,$1.length,system_charset_info);
            List_iterator <LEX_COLUMN> iter(Lex->columns);
            class LEX_COLUMN *point;
            LEX *lex=Lex;
            while ((point=iter++))
            {
              if (!my_strcasecmp(system_charset_info,
                                 point->column.ptr(), new_str->ptr()))
                break;
            }
            lex->grant_tot_col|= lex->which_columns;
            if (point)
              point->rights |= lex->which_columns;
            else
              lex->columns.push_back(new LEX_COLUMN (*new_str,lex->which_columns));
          }
11560
        ;
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11561

11562 11563
require_clause:
          /* empty */
11564
        | REQUIRE_SYM require_list
11565 11566 11567
          {
            Lex->ssl_type=SSL_TYPE_SPECIFIED;
          }
11568
        | REQUIRE_SYM SSL_SYM
11569 11570 11571
          {
            Lex->ssl_type=SSL_TYPE_ANY;
          }
11572
        | REQUIRE_SYM X509_SYM
11573 11574 11575
          {
            Lex->ssl_type=SSL_TYPE_X509;
          }
11576 11577 11578 11579 11580
        | REQUIRE_SYM NONE_SYM
          {
            Lex->ssl_type=SSL_TYPE_NONE;
          }
        ;
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11581

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11582
grant_options:
11583 11584 11585
          /* empty */ {}
        | WITH grant_option_list
        ;
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11586

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11587
grant_option_list:
11588 11589
          grant_option_list grant_option {}
        | grant_option {}
11590
        ;
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11591 11592

grant_option:
11593
          GRANT OPTION { Lex->grant |= GRANT_ACL;}
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11594
        | MAX_QUERIES_PER_HOUR ulong_num
11595 11596 11597 11598 11599
          {
            LEX *lex=Lex;
            lex->mqh.questions=$2;
            lex->mqh.specified_limits|= USER_RESOURCES::QUERIES_PER_HOUR;
          }
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11600
        | MAX_UPDATES_PER_HOUR ulong_num
11601 11602 11603 11604 11605
          {
            LEX *lex=Lex;
            lex->mqh.updates=$2;
            lex->mqh.specified_limits|= USER_RESOURCES::UPDATES_PER_HOUR;
          }
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11606
        | MAX_CONNECTIONS_PER_HOUR ulong_num
11607 11608 11609 11610 11611
          {
            LEX *lex=Lex;
            lex->mqh.conn_per_hour= $2;
            lex->mqh.specified_limits|= USER_RESOURCES::CONNECTIONS_PER_HOUR;
          }
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11612
        | MAX_USER_CONNECTIONS_SYM ulong_num
11613 11614 11615 11616 11617
          {
            LEX *lex=Lex;
            lex->mqh.user_conn= $2;
            lex->mqh.specified_limits|= USER_RESOURCES::USER_CONNECTIONS;
          }
11618
        ;
11619

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11620
begin:
11621 11622 11623 11624 11625 11626 11627 11628
          BEGIN_SYM
          {
            LEX *lex=Lex;
            lex->sql_command = SQLCOM_BEGIN;
            lex->start_transaction_opt= 0;
          }
          opt_work {}
        ;
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11629 11630

opt_work:
11631 11632
          /* empty */ {}
        | WORK_SYM  {}
11633
        ;
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11634

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11635
opt_chain:
11636 11637 11638 11639 11640
          /* empty */
          { $$= (YYTHD->variables.completion_type == 1); }
        | AND_SYM NO_SYM CHAIN_SYM { $$=0; }
        | AND_SYM CHAIN_SYM        { $$=1; }
        ;
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11641 11642

opt_release:
11643 11644 11645 11646 11647 11648
          /* empty */
          { $$= (YYTHD->variables.completion_type == 2); }
        | RELEASE_SYM        { $$=1; }
        | NO_SYM RELEASE_SYM { $$=0; }
;

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11649
opt_savepoint:
11650 11651 11652
          /* empty */ {}
        | SAVEPOINT_SYM {}
        ;
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11653

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11654
commit:
11655 11656 11657 11658 11659 11660 11661 11662
          COMMIT_SYM opt_work opt_chain opt_release
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_COMMIT;
            lex->tx_chain= $3; 
            lex->tx_release= $4;
          }
        ;
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11663 11664

rollback:
11665 11666 11667 11668 11669 11670 11671 11672 11673 11674 11675 11676 11677 11678 11679
          ROLLBACK_SYM opt_work opt_chain opt_release
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_ROLLBACK;
            lex->tx_chain= $3; 
            lex->tx_release= $4;
          }
        | ROLLBACK_SYM opt_work
          TO_SYM opt_savepoint ident
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_ROLLBACK_TO_SAVEPOINT;
            lex->ident= $5;
          }
        ;
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11680

11681
savepoint:
11682 11683 11684 11685 11686 11687 11688
          SAVEPOINT_SYM ident
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_SAVEPOINT;
            lex->ident= $2;
          }
        ;
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11689 11690

release:
11691 11692 11693 11694 11695 11696 11697 11698
          RELEASE_SYM SAVEPOINT_SYM ident
          {
            LEX *lex=Lex;
            lex->sql_command= SQLCOM_RELEASE_SAVEPOINT;
            lex->ident= $3;
          }
        ;

11699
/*
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11700
   UNIONS : glue selects together
11701 11702 11703
*/


11704
union_clause:
11705 11706 11707
          /* empty */ {}
        | union_list
        ;
11708 11709

union_list:
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          UNION_SYM union_option
          {
            LEX *lex=Lex;
            if (lex->result)
            {
              /* Only the last SELECT can have  INTO...... */
              my_error(ER_WRONG_USAGE, MYF(0), "UNION", "INTO");
              MYSQL_YYABORT;
            }
            if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            /* This counter shouldn't be incremented for UNION parts */
            Lex->nest_level--;
            if (mysql_new_select(lex, 0))
              MYSQL_YYABORT;
            mysql_init_select(lex);
            lex->current_select->linkage=UNION_TYPE;
            if ($2) /* UNION DISTINCT - remember position */
              lex->current_select->master_unit()->union_distinct=
                lex->current_select;
          }
          select_init
          {
            /*
              Remove from the name resolution context stack the context of the
              last select in the union.
            */
            Lex->pop_context();
          }
        ;
11743 11744

union_opt:
11745 11746 11747 11748
          /* Empty */ { $$= 0; }
        | union_list { $$= 1; }
        | union_order_or_limit { $$= 1; }
        ;
11749

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11750
union_order_or_limit:
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11751
          {
11752 11753 11754 11755 11756 11757 11758 11759 11760 11761 11762 11763 11764
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            DBUG_ASSERT(lex->current_select->linkage != GLOBAL_OPTIONS_TYPE);
            SELECT_LEX *sel= lex->current_select;
            SELECT_LEX_UNIT *unit= sel->master_unit();
            SELECT_LEX *fake= unit->fake_select_lex;
            if (fake)
            {
              unit->global_parameters= fake;
              fake->no_table_names_allowed= 1;
              lex->current_select= fake;
            }
            thd->where= "global ORDER clause";
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11765
          }
11766 11767 11768 11769 11770 11771 11772
          order_or_limit
          {
            THD *thd= YYTHD;
            thd->lex->current_select->no_table_names_allowed= 0;
            thd->where= "";
          }
        ;
11773 11774

order_or_limit:
11775 11776 11777
          order_clause opt_limit_clause_init
        | limit_clause
        ;
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11778 11779

union_option:
11780 11781 11782
          /* empty */ { $$=1; }
        | DISTINCT  { $$=1; }
        | ALL       { $$=0; }
11783
        ;
11784

11785
subselect:
11786 11787 11788 11789
          SELECT_SYM subselect_start subselect_init subselect_end
          {
            $$= $3;
          }
11790 11791
        | '(' subselect_start subselect ')'
          {
11792
            THD *thd= YYTHD;
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            /*
              note that a local variable can't be used for
              $3 as it's used in local variable construction
              and some compilers can't guarnatee the order
              in which the local variables are initialized.
            */
            List_iterator<Item> it($3->item_list);
            Item *item;
            /*
              we must fill the items list for the "derived table".
            */
            while ((item= it++))
              add_item_to_list(thd, item);
          }
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          union_clause subselect_end { $$= $3; }
        ;
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11809

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subselect_init:
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          select_init2
          {
            $$= Lex->current_select->master_unit()->first_select();
          }
        ;
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subselect_start:
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          {
            LEX *lex=Lex;
            if (!lex->expr_allows_subselect ||
               lex->sql_command == (int)SQLCOM_PURGE)
            {
              my_parse_error(ER(ER_SYNTAX_ERROR));
              MYSQL_YYABORT;
            }
            /* 
              we are making a "derived table" for the parenthesis
              as we need to have a lex level to fit the union 
              after the parenthesis, e.g. 
              (SELECT .. ) UNION ...  becomes 
              SELECT * FROM ((SELECT ...) UNION ...)
            */
            if (mysql_new_select(Lex, 1))
              MYSQL_YYABORT;
          }
        ;
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subselect_end:
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          {
            LEX *lex=Lex;
            lex->pop_context();
            SELECT_LEX *child= lex->current_select;
            lex->current_select = lex->current_select->return_after_parsing();
            lex->nest_level--;
            lex->current_select->n_child_sum_items += child->n_sum_items;
            /*
              A subselect can add fields to an outer select. Reserve space for
              them.
            */
            lex->current_select->select_n_where_fields+=
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11851
            child->select_n_where_fields;
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          }
        ;
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11854

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/**************************************************************************

 CREATE VIEW | TRIGGER | PROCEDURE statements.

**************************************************************************/

11861
view_or_trigger_or_sp_or_event:
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          definer view_or_trigger_or_sp_or_event_tail
          {}
        | view_replace_or_algorithm definer view_tail
          {}
        ;
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view_or_trigger_or_sp_or_event_tail:
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          view_tail
          {}
        | trigger_tail
          {}
        | sp_tail
          {}
        | event_tail
          {}
        ;
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/**************************************************************************

 DEFINER clause support.

**************************************************************************/

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definer:
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          /* empty */
          {
            /*
              We have to distinguish missing DEFINER-clause from case when
              CURRENT_USER specified as definer explicitly in order to properly
              handle CREATE TRIGGER statements which come to replication thread
              from older master servers (i.e. to create non-suid trigger in this
              case).
            */
            YYTHD->lex->definer= 0;
          }
        | DEFINER_SYM EQ user
          {
            YYTHD->lex->definer= get_current_user(YYTHD, $3);
          }
        ;
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/**************************************************************************

11905
 CREATE VIEW statement parts.
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**************************************************************************/

view_replace_or_algorithm:
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          view_replace
          {}
        | view_replace view_algorithm
          {}
        | view_algorithm
          {}
        ;
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view_replace:
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          OR_SYM REPLACE
          { Lex->create_view_mode= VIEW_CREATE_OR_REPLACE; }
        ;
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view_algorithm:
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          ALGORITHM_SYM EQ UNDEFINED_SYM
          { Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED; }
        | ALGORITHM_SYM EQ MERGE_SYM
          { Lex->create_view_algorithm= VIEW_ALGORITHM_MERGE; }
        | ALGORITHM_SYM EQ TEMPTABLE_SYM
          { Lex->create_view_algorithm= VIEW_ALGORITHM_TMPTABLE; }
        ;
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view_suid:
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          /* empty */
          { Lex->create_view_suid= VIEW_SUID_DEFAULT; }
        | SQL_SYM SECURITY_SYM DEFINER_SYM
          { Lex->create_view_suid= VIEW_SUID_DEFINER; }
        | SQL_SYM SECURITY_SYM INVOKER_SYM
          { Lex->create_view_suid= VIEW_SUID_INVOKER; }
        ;
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view_tail:
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          view_suid VIEW_SYM table_ident
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            lex->sql_command= SQLCOM_CREATE_VIEW;
            /* first table in list is target VIEW name */
            if (!lex->select_lex.add_table_to_list(thd, $3, NULL, TL_OPTION_UPDATING))
              MYSQL_YYABORT;
          }
          view_list_opt AS
          {
            THD *thd= YYTHD;
            Lex_input_stream *lip= thd->m_lip;

            lip->body_utf8_start(thd, lip->get_cpp_ptr());
          }
          view_select
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;

            lip->body_utf8_append(lip->get_cpp_ptr());

            lex->view_body_utf8.str= thd->strmake(lip->get_body_utf8_str(),
                                                  lip->get_body_utf8_length());
            lex->view_body_utf8.length= lip->get_body_utf8_length();

            trim_whitespace(&my_charset_utf8_general_ci, &lex->view_body_utf8);
          }
        ;
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view_list_opt:
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          /* empty */
          {}
        | '(' view_list ')'
        ;
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view_list:
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          ident 
            {
              Lex->view_list.push_back((LEX_STRING*)
              sql_memdup(&$1, sizeof(LEX_STRING)));
            }
        | view_list ',' ident
            {
              Lex->view_list.push_back((LEX_STRING*)
              sql_memdup(&$3, sizeof(LEX_STRING)));
            }
        ;
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view_select:
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          {
            THD *thd= YYTHD;
            LEX *lex= Lex;
            Lex_input_stream *lip= thd->m_lip;
            lex->parsing_options.allows_variable= FALSE;
            lex->parsing_options.allows_select_into= FALSE;
            lex->parsing_options.allows_select_procedure= FALSE;
            lex->parsing_options.allows_derived= FALSE;
            lex->create_view_select_start= lip->get_cpp_ptr();
          }
          view_select_aux view_check_option
          {
            THD *thd= YYTHD;
            LEX *lex= Lex;
            Lex_input_stream *lip= thd->m_lip;
            lex->parsing_options.allows_variable= TRUE;
            lex->parsing_options.allows_select_into= TRUE;
            lex->parsing_options.allows_select_procedure= TRUE;
            lex->parsing_options.allows_derived= TRUE;
            lex->create_view_select_end= lip->get_cpp_ptr();
          }
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        ;

view_select_aux:
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          SELECT_SYM select_init2
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        | '(' select_paren ')' union_opt
        ;
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view_check_option:
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          /* empty */
          { Lex->create_view_check= VIEW_CHECK_NONE; }
        | WITH CHECK_SYM OPTION
          { Lex->create_view_check= VIEW_CHECK_CASCADED; }
        | WITH CASCADED CHECK_SYM OPTION
          { Lex->create_view_check= VIEW_CHECK_CASCADED; }
        | WITH LOCAL_SYM CHECK_SYM OPTION
          { Lex->create_view_check= VIEW_CHECK_LOCAL; }
        ;
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/**************************************************************************

 CREATE TRIGGER statement parts.

**************************************************************************/

trigger_tail:
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          TRIGGER_SYM
          remember_name
          sp_name
          trg_action_time
          trg_event
          ON
          remember_name /* $7 */
          { /* $8 */
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            lex->raw_trg_on_table_name_begin= lip->get_tok_start();
          }
          table_ident /* $9 */
          FOR_SYM
          remember_name /* $11 */
          { /* $12 */
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            lex->raw_trg_on_table_name_end= lip->get_tok_start();
          }
          EACH_SYM
          ROW_SYM
          { /* $15 */
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            sp_head *sp;
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            if (lex->sphead)
            {
              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "TRIGGER");
              MYSQL_YYABORT;
            }

            if (!(sp= new sp_head()))
              MYSQL_YYABORT;
            sp->reset_thd_mem_root(thd);
            sp->init(lex);
            sp->m_type= TYPE_ENUM_TRIGGER;
            sp->init_sp_name(thd, $3);
            lex->stmt_definition_begin= $2;
            lex->ident.str= $7;
            lex->ident.length= $11 - $7;

            lex->sphead= sp;
            lex->spname= $3;
            /*
              We have to turn of CLIENT_MULTI_QUERIES while parsing a
              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
            */
            $<ulong_num>$= thd->client_capabilities & CLIENT_MULTI_QUERIES;
            thd->client_capabilities &= ~CLIENT_MULTI_QUERIES;

            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
            lex->sphead->m_chistics= &lex->sp_chistics;
            lex->sphead->set_body_start(thd, lip->get_cpp_ptr());
          }
          sp_proc_stmt /* $16 */
          { /* $17 */
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;

            lex->sql_command= SQLCOM_CREATE_TRIGGER;
            sp->set_stmt_end(YYTHD);
            /* Restore flag if it was cleared above */

            YYTHD->client_capabilities |= $<ulong_num>15;
            sp->restore_thd_mem_root(YYTHD);

            if (sp->is_not_allowed_in_function("trigger"))
              MYSQL_YYABORT;

            /*
              We have to do it after parsing trigger body, because some of
              sp_proc_stmt alternatives are not saving/restoring LEX, so
              lex->query_tables can be wiped out.
            */
            if (!lex->select_lex.add_table_to_list(YYTHD, $9,
                                                   (LEX_STRING*) 0,
                                                   TL_OPTION_UPDATING,
                                                   TL_IGNORE))
              MYSQL_YYABORT;
          }
        ;
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/**************************************************************************

 CREATE FUNCTION | PROCEDURE statements parts.

**************************************************************************/

sp_tail:
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          udf_func_type remember_name FUNCTION_SYM sp_name
          {
            LEX *lex=Lex;
            lex->udf.type= $1;
            lex->stmt_definition_begin= $2;
            lex->spname= $4;
          }
          create_function_tail
          {}
        | PROCEDURE remember_name sp_name
          {
            LEX *lex= Lex;
            sp_head *sp;
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            if (lex->sphead)
            {
              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "PROCEDURE");
              MYSQL_YYABORT;
            }

            lex->stmt_definition_begin= $2;

            /* Order is important here: new - reset - init */
            sp= new sp_head();
            sp->reset_thd_mem_root(YYTHD);
            sp->init(lex);
            sp->m_type= TYPE_ENUM_PROCEDURE;
            sp->init_sp_name(YYTHD, $3);

            lex->sphead= sp;
            /*
             * We have to turn of CLIENT_MULTI_QUERIES while parsing a
             * stored procedure, otherwise yylex will chop it into pieces
             * at each ';'.
             */
            $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
            YYTHD->client_capabilities &= (~CLIENT_MULTI_QUERIES);
          }
          '('
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;
            const char* tmp_param_begin;

            tmp_param_begin= lip->get_cpp_tok_start();
            tmp_param_begin++;
            lex->sphead->m_param_begin= tmp_param_begin;
          }
          sp_pdparam_list
          ')'
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;

            lex->sphead->m_param_end= lip->get_cpp_tok_start();
            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
          sp_c_chistics
          {
            THD *thd= YYTHD;
            LEX *lex= thd->lex;
            Lex_input_stream *lip= thd->m_lip;

            lex->sphead->m_chistics= &lex->sp_chistics;
            lex->sphead->set_body_start(thd, lip->get_cpp_tok_start());
          }
          sp_proc_stmt
          {
            LEX *lex= Lex;
            sp_head *sp= lex->sphead;

            sp->set_stmt_end(YYTHD);
            lex->sql_command= SQLCOM_CREATE_PROCEDURE;
            /*
              Restore flag if it was cleared above
              Be careful with counting. the block where we save the value
              is $4.
            */
            YYTHD->client_capabilities |= $<ulong_num>4;
            sp->restore_thd_mem_root(YYTHD);
          }
        ;
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12220
/*************************************************************************/
12221

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xa:
          XA_SYM begin_or_start xid opt_join_or_resume
          {
            Lex->sql_command = SQLCOM_XA_START;
          }
        | XA_SYM END xid opt_suspend
          {
            Lex->sql_command = SQLCOM_XA_END;
          }
        | XA_SYM PREPARE_SYM xid
          {
            Lex->sql_command = SQLCOM_XA_PREPARE;
          }
        | XA_SYM COMMIT_SYM xid opt_one_phase
          {
            Lex->sql_command = SQLCOM_XA_COMMIT;
          }
        | XA_SYM ROLLBACK_SYM xid
          {
            Lex->sql_command = SQLCOM_XA_ROLLBACK;
          }
        | XA_SYM RECOVER_SYM
          {
            Lex->sql_command = SQLCOM_XA_RECOVER;
          }
        ;

xid:
          text_string
          {
            MYSQL_YYABORT_UNLESS($1->length() <= MAXGTRIDSIZE);
            if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
              MYSQL_YYABORT;
            Lex->xid->set(1L, $1->ptr(), $1->length(), 0, 0);
          }
          | text_string ',' text_string
          {
            MYSQL_YYABORT_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
            if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
              MYSQL_YYABORT;
            Lex->xid->set(1L, $1->ptr(), $1->length(), $3->ptr(), $3->length());
          }
          | text_string ',' text_string ',' ulong_num
          {
            MYSQL_YYABORT_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
            if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
              MYSQL_YYABORT;
            Lex->xid->set($5, $1->ptr(), $1->length(), $3->ptr(), $3->length());
          }
        ;

begin_or_start:
          BEGIN_SYM {}
        | START_SYM {}
        ;
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opt_join_or_resume:
12279 12280 12281 12282
          /* nothing */ { Lex->xa_opt=XA_NONE;        }
        | JOIN_SYM      { Lex->xa_opt=XA_JOIN;        }
        | RESUME_SYM    { Lex->xa_opt=XA_RESUME;      }
        ;
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opt_one_phase:
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          /* nothing */     { Lex->xa_opt=XA_NONE;        }
        | ONE_SYM PHASE_SYM { Lex->xa_opt=XA_ONE_PHASE;   }
        ;
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12289
opt_suspend:
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          /* nothing */
          { Lex->xa_opt=XA_NONE;        }
        | SUSPEND_SYM
          { Lex->xa_opt=XA_SUSPEND;     }
          opt_migrate
        ;
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opt_migrate:
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          /* nothing */       {}
        | FOR_SYM MIGRATE_SYM { Lex->xa_opt=XA_FOR_MIGRATE; }
        ;
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12302
install:
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          INSTALL_SYM PLUGIN_SYM ident SONAME_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_INSTALL_PLUGIN;
            lex->comment= $3;
            lex->ident= $5;
          }
        ;
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uninstall:
12313 12314 12315 12316 12317 12318 12319 12320
          UNINSTALL_SYM PLUGIN_SYM ident
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_UNINSTALL_PLUGIN;
            lex->comment= $3;
          }
        ;

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/**
  @} (end of group Parser)
*/