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Added DO command 


Docs/manual.texi:
  ChangeLog
sql/gen_lex_hash.cc:
  Safety fix
parent a3eda4e3
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Showing with 106 additions and 15 deletions
Docs/manual.texi
View file @ d508b39f
......@@ -3628,7 +3628,7 @@ Use of @code{REPLACE} instead of @code{DELETE} + @code{INSERT}.
@xref{REPLACE, , @code{REPLACE}}.
@item
The @code{FLUSH flush_option} statement.
The @code{FLUSH}, @code{RESET} and @code{DO} statements.
@item
The possibility to set variables in a statement with @code{:=}:
......@@ -31993,6 +31993,9 @@ and @code{NULL} if the named lock didn't exist. The lock will not exist if
it was never obtained by a call to @code{GET_LOCK()} or if it already has
been released.
The @code{DO} statement is convinient to use with @code{RELEASE_LOCK()}.
@xref{DO}.
@findex BENCHMARK()
@item BENCHMARK(count,expr)
The @code{BENCHMARK()} function executes the expression @code{expr}
......@@ -32064,6 +32067,7 @@ facilitate replication testing.
* TRUNCATE:: @code{TRUNCATE} Syntax
* REPLACE:: @code{REPLACE} Syntax
* LOAD DATA:: @code{LOAD DATA INFILE} Syntax
* DO:: @code{DO} Syntax
@end menu
@node SELECT, INSERT, Data Manipulation, Data Manipulation
......@@ -32973,7 +32977,7 @@ The above makes it easy to check if @code{REPLACE} added or replaced a
row.
@node LOAD DATA, , REPLACE, Data Manipulation
@node LOAD DATA, DO, REPLACE, Data Manipulation
@subsection @code{LOAD DATA INFILE} Syntax
@findex LOAD DATA INFILE
......@@ -33469,6 +33473,23 @@ For more information about the efficiency of @code{INSERT} versus
@xref{Insert speed}.
@node DO, , LOAD DATA, Data Manipulation
@subsection @code{DO} Syntax
@findex DO
@example
DO expression, [expression, ...]
@end example
Execute the expression but don't return any results. This is a
shorthand of @code{SELECT expression, expression}, but has the advantage
that it's slightly faster when you don't care about the result.
This is mainly useful with functions that has side effects, like
@code{RELEASE_LOCK}.
@node Data Definition, Basic User Commands, Data Manipulation, Reference
@section Data Definition: @code{CREATE}, @code{DROP}, @code{ALTER}
......@@ -46867,6 +46888,10 @@ not yet 100% confident in this code.
@appendixsubsec Changes in release 3.23.47
@itemize @bullet
@item
Fixed core-dump bug in replication when using SELECT RELEASE_LOCK();
@item
Added new statement DO expression,[expression].
@item
Added @code{slave-skip-errors} option
@item
Added statistics variables for all MySQL commands. (@code{SHOW STATUS} is
sql/Makefile.am
View file @ d508b39f
......@@ -65,7 +65,7 @@ mysqld_SOURCES = sql_lex.cc \
mysqld.cc password.c hash_filo.cc hostname.cc \
convert.cc sql_parse.cc sql_yacc.yy \
sql_base.cc table.cc sql_select.cc sql_insert.cc \
sql_update.cc sql_delete.cc \
sql_update.cc sql_delete.cc sql_do.cc \
procedure.cc item_uniq.cc sql_test.cc \
log.cc log_event.cc init.cc derror.cc sql_acl.cc \
unireg.cc \
......
sql/gen_lex_hash.cc
View file @ d508b39f
......@@ -278,8 +278,17 @@ void print_arrays()
for (i=0;i<size;i++)
{
ulong order = tab_index_function ((i < how_long_symbols) ? symbols[i].name : sql_functions[i - how_long_symbols].name,function_plus,function_type);
const char *name= ((i < how_long_symbols) ?
symbols[i].name :
sql_functions[i - how_long_symbols].name);
ulong order = tab_index_function(name,function_plus,function_type);
order %= function_mod;
/* This should never be true */
if (prva[order] != max_symbol)
{
fprintf(stderr,"Error: Got duplicate value for symbol '%s'\n",name);
exit(1);
}
prva [order] = i;
}
......@@ -330,11 +339,11 @@ static struct option long_options[] =
static void usage(int version)
{
printf("%s Ver 3.2 Distrib %s, for %s (%s)\n",
printf("%s Ver 3.3 Distrib %s, for %s (%s)\n",
my_progname, MYSQL_SERVER_VERSION, SYSTEM_TYPE, MACHINE_TYPE);
if (version)
return;
puts("Copyright (C) 2000 MySQL AB & MySQL Finland AB, by Sinisa and Monty");
puts("Copyright (C) 2001 MySQL AB, by Sinisa and Monty");
puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
puts("This program generates a perfect hashing function for the sql_lex.cc");
printf("Usage: %s [OPTIONS]\n", my_progname);
......@@ -521,7 +530,7 @@ int main(int argc,char **argv)
function_mod=best_mod; function_plus=best_add;
make_char_table(best_t1,best_t2,best_type);
printf("/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB\n\
printf("/* Copyright (C) 2001 MySQL AB\n\
This program is free software; you can redistribute it and/or modify\n\
it under the terms of the GNU General Public License as published by\n\
the Free Software Foundation; either version 2 of the License, or\n\
......
sql/item_func.cc
View file @ d508b39f
......@@ -1406,7 +1406,7 @@ void item_user_lock_release(ULL *ull)
char buf[256];
String tmp(buf,sizeof(buf));
tmp.length(0);
tmp.append("SELECT release_lock(\"");
tmp.append("DO RELEASE_LOCK(\"");
tmp.append(ull->key,ull->key_length);
tmp.append("\")");
save_errno=thd->net.last_errno;
......
sql/lex.h
View file @ d508b39f
......@@ -114,6 +114,7 @@ static SYMBOL symbols[] = {
{ "DESCRIBE", SYM(DESCRIBE),0,0},
{ "DISTINCT", SYM(DISTINCT),0,0},
{ "DISTINCTROW", SYM(DISTINCT),0,0}, /* Access likes this */
{ "DO", SYM(DO_SYM),0,0},
{ "DOUBLE", SYM(DOUBLE_SYM),0,0},
{ "DROP", SYM(DROP),0,0},
{ "DUMPFILE", SYM(DUMPFILE),0,0},
......@@ -466,9 +467,9 @@ static SYMBOL sql_functions[] = {
{ "TO_DAYS", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_to_days)},
{ "TRIM", SYM(TRIM),0,0},
{ "UCASE", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ucase)},
{ "UPPER", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ucase)},
{ "UNIQUE_USERS", SYM(UNIQUE_USERS),0,0},
{ "UNIX_TIMESTAMP", SYM(UNIX_TIMESTAMP),0,0},
{ "UPPER", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ucase)},
{ "USER", SYM(USER),0,0},
{ "VERSION", SYM(FUNC_ARG0),0,CREATE_FUNC(create_func_version)},
{ "WEEK", SYM(WEEK_SYM),0,0},
......
sql/mysql_priv.h
View file @ d508b39f
......@@ -373,6 +373,9 @@ Field *find_field_in_tables(THD *thd,Item_field *item,TABLE_LIST *tables);
Field *find_field_in_table(THD *thd,TABLE *table,const char *name,uint length,
bool check_grant,bool allow_rowid);
/* sql_do.cc */
int mysql_do(THD *thd, List<Item> &values);
/* sql_list.c */
int mysqld_show_dbs(THD *thd,const char *wild);
int mysqld_show_open_tables(THD *thd,const char *db,const char *wild);
......
sql/sql_do.cc 0 → 100644
View file @ d508b39f
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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.
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 */
/* Execute DO statement */
#include "mysql_priv.h"
#include "sql_acl.h"
int mysql_do(THD *thd, List<Item> &values)
{
int error;
List_iterator<Item> li(values);
Item *value;
DBUG_ENTER("mysql_do");
if (setup_fields(thd,0, values, 0, 0))
DBUG_RETURN(-1);
while ((value = li++))
value->val_int();
send_ok(&thd->net);
DBUG_RETURN(0);
}
sql/sql_lex.h
View file @ d508b39f
......@@ -53,7 +53,7 @@ enum enum_sql_command {
SQLCOM_BEGIN, SQLCOM_LOAD_MASTER_TABLE, SQLCOM_CHANGE_MASTER,
SQLCOM_RENAME_TABLE, SQLCOM_BACKUP_TABLE, SQLCOM_RESTORE_TABLE,
SQLCOM_RESET, SQLCOM_PURGE, SQLCOM_SHOW_BINLOGS,
SQLCOM_SHOW_OPEN_TABLES,
SQLCOM_SHOW_OPEN_TABLES, SQLCOM_DO,
SQLCOM_END
};
......
sql/sql_parse.cc
View file @ d508b39f
......@@ -1164,6 +1164,10 @@ mysql_execute_command(void)
#endif
break;
}
case SQLCOM_DO:
res=mysql_do(thd, *lex->insert_list);
break;
case SQLCOM_PURGE:
{
if (check_process_priv(thd))
......
sql/sql_yacc.yy
View file @ d508b39f
......@@ -102,6 +102,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%token CREATE
%token CROSS
%token DELETE_SYM
%token DO_SYM
%token DROP
%token INSERT
%token FLUSH_SYM
......@@ -509,7 +510,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%type <lex_user> user grant_user
%type <NONE>
query verb_clause create change select drop insert replace insert2
query verb_clause create change select do drop insert replace insert2
insert_values update delete truncate rename
show describe load alter optimize flush
reset purge begin commit rollback slave master_def master_defs
......@@ -560,6 +561,7 @@ verb_clause:
| create
| delete
| describe
| do
| drop
| grant
| insert
......@@ -1227,7 +1229,7 @@ table_to_table:
}
/*
** Select : retrieve data from table
Select : retrieve data from table
*/
......@@ -1861,7 +1863,7 @@ opt_escape:
/*
** group by statement in select
group by statement in select
*/
group_clause:
......@@ -1875,7 +1877,7 @@ group_list:
{ if (add_group_to_list($1,(bool) $2)) YYABORT; }
/*
** Order by statement in select
Order by statement in select
*/
opt_order_clause:
......@@ -1971,9 +1973,20 @@ opt_into:
YYABORT;
}
/*
DO statement
*/
do: DO_SYM
{
LEX *lex=Lex;
lex->sql_command = SQLCOM_DO;
if (!(lex->insert_list = new List_item))
YYABORT;
}
values
/*
** Drop : delete tables or index
Drop : delete tables or index
*/
drop:
......@@ -2534,6 +2547,7 @@ keyword:
| DATE_SYM {}
| DAY_SYM {}
| DELAY_KEY_WRITE_SYM {}
| DO_SYM {}
| DUMPFILE {}
| DYNAMIC_SYM {}
| END {}
......
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