new error for unsupported command in PS

fixed IN subselect with basic constant left expression
SQLCOM_CREATE_TABLE, SQLCOM_UPDATE_MULTI, SQLCOM_REPLACE_SELECT, SQLCOM_INSERT_SELECT, QLCOM_DELETE_MULTI fixed to be compatible with PS (BUG#3398, BUG#3406)
fixed multiupdate privelege check (BUG#3408)
fixed multiupdate tables check (BUG#3411)
unchecked commands now is rejected by PS protocol to avoid serever crash
fixed cleunup procedure to be compatible sith DO/SET (BUG#3393)


include/mysqld_error.h:
  new error for unsupported command in PS
mysql-test/r/multi_update.result:
  test sutes (BUG#3408, BUG#3411)
mysql-test/t/multi_update.test:
  test sutes (BUG#3408, BUG#3411)
sql/item_cmpfunc.cc:
  fixed IN subselect with basic constant left expression
sql/mysql_priv.h:
  some function frop sql_parse.h become public
sql/set_var.cc:
  check for SET command via PS
sql/set_var.h:
  check for SET command via PS
sql/share/czech/errmsg.txt:
  new error for unsupported command in PS
sql/share/danish/errmsg.txt:
  new error for unsupported command in PS
sql/share/dutch/errmsg.txt:
  new error for unsupported command in PS
sql/share/english/errmsg.txt:
  new error for unsupported command in PS
sql/share/estonian/errmsg.txt:
  new error for unsupported command in PS
sql/share/french/errmsg.txt:
  new error for unsupported command in PS
sql/share/german/errmsg.txt:
  new error for unsupported command in PS
sql/share/greek/errmsg.txt:
  new error for unsupported command in PS
sql/share/hungarian/errmsg.txt:
  new error for unsupported command in PS
sql/share/italian/errmsg.txt:
  new error for unsupported command in PS
sql/share/japanese/errmsg.txt:
  new error for unsupported command in PS
sql/share/korean/errmsg.txt:
  new error for unsupported command in PS
sql/share/norwegian-ny/errmsg.txt:
  new error for unsupported command in PS
sql/share/norwegian/errmsg.txt:
  new error for unsupported command in PS
sql/share/polish/errmsg.txt:
  new error for unsupported command in PS
sql/share/portuguese/errmsg.txt:
  new error for unsupported command in PS
sql/share/romanian/errmsg.txt:
  new error for unsupported command in PS
sql/share/russian/errmsg.txt:
  new error for unsupported command in PS
sql/share/serbian/errmsg.txt:
  new error for unsupported command in PS
sql/share/slovak/errmsg.txt:
  new error for unsupported command in PS
sql/share/spanish/errmsg.txt:
  new error for unsupported command in PS
sql/share/swedish/errmsg.txt:
  new error for unsupported command in PS
sql/share/ukrainian/errmsg.txt:
  new error for unsupported command in PS
sql/sql_lex.cc:
  first table unlincking procedures for CREATE command
sql/sql_lex.h:
  first table unlincking procedures for CREATE command
sql/sql_parse.cc:
  used function to exclude first table from list
  SQLCOM_CREATE_TABLE, SQLCOM_UPDATE_MULTI, SQLCOM_REPLACE_SELECT, SQLCOM_INSERT_SELECT, QLCOM_DELETE_MULTI fixed to be compatible with PS (BUG#3398, BUG#3406)
  fixed multiupdate privelege check (BUG#3408)
  fixed multiupdate tables check (BUG#3411)
sql/sql_prepare.cc:
  fixed a lot of commands to be compatible with PS
  unchecked commands now is rejected to avoid serever crash
sql/sql_select.cc:
  allow empty result for PS preparing
sql/sql_union.cc:
  fixed cleunup procedure to be compatible sith DO/SET (BUG#3393)
sql/sql_update.cc:
  fixed update to use correct tables lists (BUG#3408)
sql/table.h:
  flag to support multi update tables check (BUG#3408)
tests/client_test.c:
  removed unsupported tables
  fixed show table test
  added new tests

include/mysqld_error.h

@@ -311,4 +311,5 @@
 #define ER_TRUNCATED_WRONG_VALUE 1292
 #define ER_TOO_MUCH_AUTO_TIMESTAMP_COLS 1293
 #define ER_INVALID_ON_UPDATE 1294
-#define ER_ERROR_MESSAGES 295
+#define ER_UNSUPPORTED_PS 1295
+#define ER_ERROR_MESSAGES 296

mysql-test/r/multi_update.result

 drop table if exists t1,t2,t3;
+drop database if exists mysqltest;
 create table t1(id1 int not null auto_increment primary key, t char(12));
 create table t2(id2 int not null, t char(12));
 create table t3(id3 int not null, t char(12), index(id3));
@@ -402,7 +403,7 @@ DELETE t1 FROM t1, t2 AS t3;
 DELETE t4 FROM t1, t1 AS t4;
 DELETE t3 FROM t1 AS t3, t1 AS t4;
 DELETE t1 FROM t1 AS t3, t2 AS t4;
-ERROR 42000: Not unique table/alias: 't1'
+ERROR 42S02: Unknown table 't1' in MULTI DELETE
 INSERT INTO t1 values (1),(2);
 INSERT INTO t2 values (1),(2);
 DELETE t1 FROM t1 AS t2, t2 AS t1 where t1.a=t2.a and t1.a=1;
@@ -435,3 +436,20 @@ select * from t2;
 c2_id	c2_p_id	c2_note	c2_active
 1	1	A Note	1
 drop table t1, t2;
+create database mysqltest;
+create table mysqltest.t1 (a int, b int, primary key (a));
+create table mysqltest.t2 (a int, b int, primary key (a));
+create table mysqltest.t3 (a int, b int, primary key (a));
+grant select on mysqltest.* to mysqltest_1@localhost;
+grant update on mysqltest.t1 to mysqltest_1@localhost;
+update t1, t2 set t1.b=1 where t1.a=t2.a;
+update t1, t2 set t1.b=(select t3.b from t3 where t1.a=t3.a) where t1.a=t2.a;
+revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
+delete from mysql.user where user='mysqltest_1';
+drop database mysqltest;
+create table t1 (a int, primary key (a));
+create table t2 (a int, primary key (a));
+create table t3 (a int, primary key (a));
+delete t1,t3 from t1,t2 where t1.a=t2.a and t2.a=(select t3.a from t3 where t1.a=t3.a);
+ERROR 42S02: Unknown table 't3' in MULTI DELETE
+drop table t1, t2, t3;

mysql-test/t/multi_update.test

@@ -4,6 +4,7 @@
 
 --disable_warnings
 drop table if exists t1,t2,t3;
+drop database if exists mysqltest;
 --enable_warnings
 
 create table t1(id1 int not null auto_increment primary key, t char(12));
@@ -354,7 +355,7 @@ CREATE TABLE t2 ( a int );
 DELETE t1 FROM t1, t2 AS t3;
 DELETE t4 FROM t1, t1 AS t4;
 DELETE t3 FROM t1 AS t3, t1 AS t4;
---error 1066
+--error 1109
 DELETE t1 FROM t1 AS t3, t2 AS t4;
 INSERT INTO t1 values (1),(2);
 INSERT INTO t2 values (1),(2);
@@ -369,7 +370,6 @@ DROP TABLE t1,t2;
 #
 # Test update with const tables
 #
-
 create table `t1` (`p_id` int(10) unsigned NOT NULL auto_increment, `p_code` varchar(20) NOT NULL default '', `p_active` tinyint(1) unsigned NOT NULL default '1', PRIMARY KEY (`p_id`) );
 create table `t2` (`c2_id` int(10) unsigned NULL auto_increment, `c2_p_id` int(10) unsigned NOT NULL default '0', `c2_note` text NOT NULL, `c2_active` tinyint(1) unsigned NOT NULL default '1', PRIMARY KEY (`c2_id`), KEY `c2_p_id` (`c2_p_id`) );
 insert into t1 values (0,'A01-Comp',1);
@@ -379,3 +379,36 @@ update t1 left join t2 on p_id = c2_p_id set c2_note = 'asdf-1' where p_id = 2;
 select * from t1;
 select * from t2;
 drop table t1, t2;
+
+#
+# prevelege chexk for multiupdate with other tables
+#
+
+connect (root,localhost,root,,test,$MASTER_MYPORT,master.sock);
+connection root;
+--disable_warnings
+create database mysqltest;
+--enable_warnings
+create table mysqltest.t1 (a int, b int, primary key (a));
+create table mysqltest.t2 (a int, b int, primary key (a));
+create table mysqltest.t3 (a int, b int, primary key (a));
+grant select on mysqltest.* to mysqltest_1@localhost;
+grant update on mysqltest.t1 to mysqltest_1@localhost;
+connect (user1,localhost,mysqltest_1,,mysqltest,$MASTER_MYPORT,master.sock);
+connection user1;
+update t1, t2 set t1.b=1 where t1.a=t2.a;
+update t1, t2 set t1.b=(select t3.b from t3 where t1.a=t3.a) where t1.a=t2.a;
+connection root;
+revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
+delete from mysql.user where user='mysqltest_1';
+drop database mysqltest;
+
+#
+# multi delete wrong table check
+#
+create table t1 (a int, primary key (a));
+create table t2 (a int, primary key (a));
+create table t3 (a int, primary key (a));
+-- error 1109
+delete t1,t3 from t1,t2 where t1.a=t2.a and t2.a=(select t3.a from t3 where t1.a=t3.a);
+drop table t1, t2, t3;

sql/item_cmpfunc.cc

@@ -477,9 +477,11 @@ bool Item_in_optimizer::fix_left(THD *thd,
 				 struct st_table_list *tables,
 				 Item **ref)
 {
-  if (args[0]->fix_fields(thd, tables, ref) ||
-      (!cache && !(cache= Item_cache::get_cache(args[0]->result_type()))))
+  if ((!args[0]->fixed && args[0]->fix_fields(thd, tables, args)))
     return 1;
+  if (!cache && !(cache= Item_cache::get_cache(args[0]->result_type())))
+      return 1;
+
   cache->setup(args[0]);
   cache->store(args[0]);
   if (cache->cols() == 1)
@@ -512,12 +514,12 @@ bool Item_in_optimizer::fix_fields(THD *thd, struct st_table_list *tables,
 				   Item ** ref)
 {
   DBUG_ASSERT(fixed == 0);
-  if (!args[0]->fixed && fix_left(thd, tables, ref))
+  if (fix_left(thd, tables, ref))
     return 1;
   if (args[0]->maybe_null)
     maybe_null=1;
 
-  if (!args[1]->fixed && args[1]->fix_fields(thd, tables, args))
+  if (!args[1]->fixed && args[1]->fix_fields(thd, tables, args+1))
     return 1;
   Item_in_subselect * sub= (Item_in_subselect *)args[1];
   if (args[0]->cols() != sub->engine->cols())

sql/mysql_priv.h

@@ -347,6 +347,13 @@ void free_items(Item *item);
 void cleanup_items(Item *item);
 class THD;
 void close_thread_tables(THD *thd, bool locked=0, bool skip_derived=0);
+int check_one_table_access(THD *thd, ulong privilege,
+			   TABLE_LIST *tables, bool no_errors);
+bool check_merge_table_access(THD *thd, char *db,
+			      TABLE_LIST *table_list);
+int multi_update_precheck(THD *thd, TABLE_LIST *tables);
+int multi_delete_precheck(THD *thd, TABLE_LIST *tables, uint *table_count);
+int insert_select_precheck(THD *thd, TABLE_LIST *tables);
 #include "sql_class.h"
 #include "opt_range.h"
 

sql/set_var.cc

@@ -2528,6 +2528,24 @@ int set_var::check(THD *thd)
 }
 
 
+int set_var::light_check(THD *thd)
+{
+  if (var->check_type(type))
+  {
+    my_error(type == OPT_GLOBAL ? ER_LOCAL_VARIABLE : ER_GLOBAL_VARIABLE,
+	     MYF(0),
+	     var->name);
+    return -1;
+  }
+  if ((type == OPT_GLOBAL && check_global_access(thd, SUPER_ACL)))
+    return 1;
+
+  if (value && (value->fix_fields(thd, 0, &value) || value->check_cols(1)))
+    return -1;
+  return 0;
+}
+
+
 int set_var::update(THD *thd)
 {
   if (!value)
@@ -2555,6 +2573,16 @@ int set_var_user::check(THD *thd)
 }
 
 
+int set_var_user::light_check(THD *thd)
+{
+  /*
+    Item_func_set_user_var can't substitute something else on its place =>
+    0 can be passed as last argument (reference on item)
+  */
+  return (user_var_item->fix_fields(thd, 0, (Item**) 0));
+}
+
+
 int set_var_user::update(THD *thd)
 {
   if (user_var_item->update())

sql/set_var.h

@@ -688,6 +688,8 @@ class set_var_base :public Sql_alloc
   virtual ~set_var_base() {}
   virtual int check(THD *thd)=0;	/* To check privileges etc. */
   virtual int update(THD *thd)=0;	/* To set the value */
+  /* light check for PS */
+  virtual   int light_check(THD *thd) { return check(thd); }
 };
 
 
@@ -728,6 +730,7 @@ class set_var :public set_var_base
   }
   int check(THD *thd);
   int update(THD *thd);
+  int light_check(THD *thd);
 };
 
 
@@ -742,6 +745,7 @@ class set_var_user: public set_var_base
   {}
   int check(THD *thd);
   int update(THD *thd);
+  int light_check(THD *thd);
 };
 
 /* For SET PASSWORD */

sql/share/czech/errmsg.txt

@@ -307,3 +307,4 @@ character-set=latin2
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/danish/errmsg.txt

@@ -301,3 +301,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/dutch/errmsg.txt

@@ -309,3 +309,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/english/errmsg.txt

@@ -298,3 +298,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/estonian/errmsg.txt

@@ -303,3 +303,4 @@ character-set=latin7
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/french/errmsg.txt

@@ -298,3 +298,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/german/errmsg.txt

@@ -310,3 +310,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/greek/errmsg.txt

@@ -298,3 +298,4 @@ character-set=greek
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/hungarian/errmsg.txt

@@ -300,3 +300,4 @@ character-set=latin2
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/italian/errmsg.txt

@@ -298,3 +298,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/japanese/errmsg.txt

@@ -300,3 +300,4 @@ character-set=ujis
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/korean/errmsg.txt

@@ -298,3 +298,4 @@ character-set=euckr
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/norwegian-ny/errmsg.txt

@@ -300,3 +300,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/norwegian/errmsg.txt

@@ -300,3 +300,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/polish/errmsg.txt

@@ -302,3 +302,4 @@ character-set=latin2
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/portuguese/errmsg.txt

@@ -299,3 +299,4 @@ character-set=latin1
 "Truncado errado %-.32s valor: '%-.128s'"
 "Incorreta definição de tabela; Pode ter somente uma coluna TIMESTAMP com CURRENT_TIMESTAMP em DEFAULT ou ON UPDATE cláusula"
 "Inválida cláusula ON UPDATE para campo '%-.64s'",
+"This command is not supported in the prepared statement protocol yet",

sql/share/romanian/errmsg.txt

@@ -302,3 +302,4 @@ character-set=latin2
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/russian/errmsg.txt

@@ -300,3 +300,4 @@ character-set=koi8r
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/serbian/errmsg.txt

@@ -292,3 +292,4 @@ character-set=cp1250
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/slovak/errmsg.txt

@@ -306,3 +306,4 @@ character-set=latin2
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/spanish/errmsg.txt

@@ -300,3 +300,4 @@ character-set=latin1
 "Equivocado truncado %-.32s valor: '%-.128s'"
 "Incorrecta definición de tabla; Solamente debe haber una columna TIMESTAMP con CURRENT_TIMESTAMP en DEFAULT o ON UPDATE cláusula"
 "Inválido ON UPDATE cláusula para campo '%-.64s'",
+"This command is not supported in the prepared statement protocol yet",

sql/share/swedish/errmsg.txt

@@ -298,3 +298,4 @@ character-set=latin1
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/share/ukrainian/errmsg.txt

@@ -303,3 +303,4 @@ character-set=koi8u
 "Truncated wrong %-.32s value: '%-.128s'"
 "Incorrect table definition; There can only be one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT or ON UPDATE clause"
 "Invalid ON UPDATE clause for '%-.64s' field",
+"This command is not supported in the prepared statement protocol yet",

sql/sql_lex.cc

@@ -1634,6 +1634,66 @@ void st_select_lex::print_limit(THD *thd, String *str)
   }
 }
 
+/*
+  unlink first table from table lists
+
+  SYNOPSIS
+    unlink_first_table()
+    tables		- global table list
+    global_first	- save first global table passed using this parameter
+    local_first		- save first local table passed using this parameter
+
+  RETURN
+    global list without first table
+*/
+TABLE_LIST *st_lex::unlink_first_table(TABLE_LIST *tables,
+				       TABLE_LIST **global_first,
+				       TABLE_LIST **local_first)
+{
+  *global_first= tables;
+  *local_first= (TABLE_LIST*)select_lex.table_list.first;
+  // exclude from global table list
+  tables= tables->next;
+  // and from local list if it is not the same
+  if (&select_lex != all_selects_list)
+    select_lex.table_list.first= (gptr)(*local_first)->next;
+  else
+    select_lex.table_list.first= (gptr)tables;
+  (*global_first)->next= 0;
+  return tables;
+}
+
+/*
+  link unlinked first table back
+
+  SYNOPSIS
+    link_first_table_back()
+    tables		- global table list
+    global_first	- save first global table
+    local_first		- save first local table
+
+  RETURN
+    global list
+*/
+TABLE_LIST *st_lex::link_first_table_back(TABLE_LIST *tables,
+					  TABLE_LIST *global_first,
+					  TABLE_LIST *local_first)
+{
+  global_first->next= tables;
+  tables= global_first;
+  if (&select_lex != all_selects_list)
+  {
+    /*
+      we do not touch local table 'next' field => we need just
+      put the table in the list
+    */
+    select_lex.table_list.first= (gptr) local_first;
+  }
+  else
+    select_lex.table_list.first= (gptr) tables;
+  return tables;
+}
+
 /*
   There are st_select_lex::add_table_to_list & 
   st_select_lex::set_lock_for_tables are in sql_parse.cc

sql/sql_lex.h

@@ -603,6 +603,12 @@ typedef struct st_lex
       un->uncacheable|= cause;
     }
   }
+  TABLE_LIST *unlink_first_table(TABLE_LIST *tables,
+				 TABLE_LIST **global_first,
+				 TABLE_LIST **local_first);
+  TABLE_LIST *link_first_table_back(TABLE_LIST *tables,
+				    TABLE_LIST *global_first,
+				    TABLE_LIST *local_first);
 } LEX;
 
 

sql/sql_select.cc

@@ -434,7 +434,7 @@ JOIN::prepare(Item ***rref_pointer_array,
     goto err;
   }
 #endif
-  if (!procedure && result->prepare(fields_list, unit_arg))
+  if (!procedure && result && result->prepare(fields_list, unit_arg))
     goto err;					/* purecov: inspected */
 
   if (select_lex->olap == ROLLUP_TYPE && rollup_init())

sql/sql_union.cc

@@ -460,13 +460,24 @@ int st_select_lex_unit::cleanup()
     table= 0; // Safety
   }
   JOIN *join;
-  for (SELECT_LEX *sl= first_select_in_union(); sl; sl= sl->next_select())
+  SELECT_LEX *sl= first_select_in_union();
+  for (; sl; sl= sl->next_select())
   {
     if ((join= sl->join))
     {
       error|= sl->join->cleanup();
       delete join;
     }
+    else
+    {
+      // it can be DO/SET with subqueries
+      for (SELECT_LEX_UNIT *lex_unit= sl->first_inner_unit();
+	   lex_unit != 0;
+	   lex_unit= lex_unit->next_unit())
+      {
+	error|= lex_unit->cleanup();
+      }
+    }
   }
   if (fake_select_lex && (join= fake_select_lex->join))
   {

sql/sql_update.cc

@@ -99,7 +99,7 @@ int mysql_update(THD *thd,
       setup_conds(thd,update_table_list,&conds) ||
       thd->lex->select_lex.setup_ref_array(thd, order_num) ||
       setup_order(thd, thd->lex->select_lex.ref_pointer_array,
-		  &tables, all_fields, all_fields, order) ||
+		  update_table_list, all_fields, all_fields, order) ||
       setup_ftfuncs(&thd->lex->select_lex))
     DBUG_RETURN(-1);				/* purecov: inspected */
 
@@ -427,6 +427,9 @@ int mysql_multi_update(THD *thd,
   int res;
   multi_update *result;
   TABLE_LIST *tl;
+  TABLE_LIST *update_list=
+    (TABLE_LIST*)thd->lex->select_lex.table_list.first;
+
   table_map item_tables= 0, derived_tables= 0;
   DBUG_ENTER("mysql_multi_update");
 
@@ -439,7 +442,7 @@ int mysql_multi_update(THD *thd,
     Ensure that we have update privilege for all tables and columns in the
     SET part
   */
-  for (tl= table_list ; tl ; tl=tl->next)
+  for (tl= update_list; tl; tl= tl->next)
   {
     TABLE *table= tl->table;
     /*
@@ -456,14 +459,14 @@ int mysql_multi_update(THD *thd,
   {
     // Assign table map values to check updatability of derived tables
     uint tablenr=0;
-    for (TABLE_LIST *table_list= (TABLE_LIST*) select_lex->table_list.first;
+    for (TABLE_LIST *table_list= update_list;
 	 table_list;
 	 table_list= table_list->next, tablenr++)
     {
       table_list->table->map= (table_map) 1 << tablenr;
     }
   }
-  if (setup_fields(thd, 0, table_list, *fields, 1, 0, 0))
+  if (setup_fields(thd, 0, update_list, *fields, 1, 0, 0))
     DBUG_RETURN(-1);
   if (thd->lex->derived_tables)
   {
@@ -479,7 +482,7 @@ int mysql_multi_update(THD *thd,
   /*
     Count tables and setup timestamp handling
   */
-  for (tl= select_lex->get_table_list() ; tl ; tl= tl->next)
+  for (tl= update_list; tl; tl= tl->next)
   {
     TABLE *table= tl->table;
 
@@ -496,7 +499,7 @@ int mysql_multi_update(THD *thd,
   if (thd->lex->derived_tables && (item_tables & derived_tables))
   {
     // find derived table which cause error
-    for (tl= select_lex->get_table_list() ; tl ; tl= tl->next)
+    for (tl= update_list; tl; tl= tl->next)
     {
       if (tl->derived && (item_tables & tl->table->map))
       {

sql/table.h

@@ -193,6 +193,7 @@ typedef struct st_table_list
   bool          updating;               /* for replicate-do/ignore table */
   bool		force_index;		/* Prefer index over table scan */
   bool          ignore_leaves;          /* Preload only non-leaf nodes */
+  bool		checked;		/* used in multi-upd privelege check */
   bool		non_cachable_table;	/* stop PS caching */
 } TABLE_LIST;
 

tests/client_test.c

@@ -925,14 +925,6 @@ static void test_prepare_simple()
   rc = mysql_query(mysql,"CREATE TABLE test_prepare_simple(id int, name varchar(50))");
   myquery(rc);
 
-  /* alter table */
-  strmov(query,"ALTER TABLE test_prepare_simple ADD new char(20)");
-  stmt = mysql_simple_prepare(mysql, query);
-  mystmt_init(stmt);
-
-  verify_param_count(stmt,0);
-  mysql_stmt_close(stmt);
-
   /* insert */
   strmov(query,"INSERT INTO test_prepare_simple VALUES(?,?)");
   stmt = mysql_simple_prepare(mysql, query);
@@ -1541,22 +1533,25 @@ static void test_select_version()
 }
 
 /********************************************************
-* to test simple select                                 *
+* to test simple show                                   *
 *********************************************************/
-static void test_select_simple()
+static void test_select_show_table()
 {
   MYSQL_STMT *stmt;
-  int        rc;
+  int        rc, i;
 
-  myheader("test_select_simple");
+  myheader("test_select_show_table");
 
   stmt = mysql_simple_prepare(mysql, "SHOW TABLES FROM mysql");
   mystmt_init(stmt);
 
   verify_param_count(stmt,0);
 
-  rc = mysql_execute(stmt);
-  mystmt(stmt, rc);
+  for (i= 1; i < 3; i++)
+  {
+    rc = mysql_execute(stmt);
+    mystmt(stmt, rc);
+  }
 
   my_process_stmt_result(stmt);
   mysql_stmt_close(stmt);
@@ -4048,7 +4043,7 @@ static void test_stmt_close()
   rc = mysql_query(lmysql,"CREATE TABLE test_stmt_close(id int)");
   myquery(rc);
 
-  strmov(query,"ALTER TABLE test_stmt_close ADD name varchar(20)");
+  strmov(query,"DO \"nothing\"");
   stmt1= mysql_simple_prepare(lmysql, query);
   mystmt_init(stmt1);
   
@@ -6452,14 +6447,10 @@ static void test_prepare_grant()
     myquery_r(rc);
 
     stmt= mysql_simple_prepare(mysql,"DELETE FROM test_grant");
-    mystmt_init(stmt);
-
-    rc = mysql_execute(stmt);
-    myquery_r(rc);
+    mystmt_init_r(stmt);
     
     assert(4 == my_stmt_result("SELECT * FROM test_grant"));
     
-    mysql_stmt_close(stmt);
     mysql_close(lmysql);        
     mysql= org_mysql;
 
@@ -8214,6 +8205,7 @@ static void test_subqueries()
   MYSQL_STMT *stmt;
   int rc, i;
   const char *query= "SELECT (SELECT SUM(a+b) FROM t2 where t1.b=t2.b GROUP BY t1.a LIMIT 1) as scalar_s, exists (select 1 from t2 where t2.a/2=t1.a) as exists_s, a in (select a+3 from t2) as in_s, (a-1,b-1) in (select a,b from t2) as in_row_s FROM t1, (select a x, b y from t2) tt WHERE x=a";
+  /* const char *query= "SELECT (SELECT SUM(a+b) FROM t2 where t1.b=t2.b GROUP BY t1.a LIMIT 1) as scalar_s, exists (select 1 from t2 where t2.a/2=t1.a) as exists_s, a in (select a+3 from t2) as in_s FROM t1, (select a x, b y from t2) tt WHERE x=a"; */
 
   myheader("test_subquery");
   
@@ -8594,13 +8586,22 @@ static void test_selecttmp()
 
 static void test_create_drop()
 {
-  MYSQL_STMT *stmt_create, *stmt_drop;
+  MYSQL_STMT *stmt_create, *stmt_drop, *stmt_select, *stmt_create_select;
   char *query;
   int rc, i;
   myheader("test_table_manipulation");
   
   rc = mysql_query(mysql, "DROP TABLE IF EXISTS t1,t2");
   myquery(rc);
+
+  rc= mysql_query(mysql,"create table t2 (a int);");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t1 (a int);");
+  myquery(rc);
+
+  rc= mysql_query(mysql, "insert into t2 values (3), (2), (1);");
+  myquery(rc);
   
   query= (char*)"create table t1 (a int)";
   stmt_create= mysql_prepare(mysql, query, strlen(query));
@@ -8610,18 +8611,51 @@ static void test_create_drop()
   stmt_drop= mysql_prepare(mysql, query, strlen(query));
   mystmt_init(stmt_drop);
 
+  query= (char*)"select a in (select a from t2) from t1";
+  stmt_select= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_select);
+  
+  rc= mysql_query(mysql, "DROP TABLE t1");
+  myquery(rc);
+
+  query= (char*)"create table t1 select a from t2";
+  stmt_create_select= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_create_select);
+
   for (i= 0; i < 3; i++)
   {
     rc= mysql_execute(stmt_create);
     mystmt(stmt_create, rc);
     fprintf(stdout, "created %i\n", i);
+
+    rc= mysql_execute(stmt_select);
+    mystmt(stmt_select, rc);
+    assert(0 == my_process_stmt_result(stmt_select));
+
     rc= mysql_execute(stmt_drop);
     mystmt(stmt_drop, rc);
-    fprintf(stdout, "droped %i\n", i);  
+    fprintf(stdout, "droped %i\n", i);
+
+    rc= mysql_execute(stmt_create_select);
+    mystmt(stmt_create, rc);
+    fprintf(stdout, "created select %i\n", i);
+
+    rc= mysql_execute(stmt_select);
+    mystmt(stmt_select, rc);
+    assert(3 == my_process_stmt_result(stmt_select));
+
+    rc= mysql_execute(stmt_drop);
+    mystmt(stmt_drop, rc);
+    fprintf(stdout, "droped %i\n", i);
   }
   
   mysql_stmt_close(stmt_create);
   mysql_stmt_close(stmt_drop);
+  mysql_stmt_close(stmt_select);
+  mysql_stmt_close(stmt_create_select);
+
+  rc= mysql_query(mysql, "DROP TABLE t2");
+  myquery(rc);
 }
 
 
@@ -8669,6 +8703,166 @@ static void test_rename()
   myquery(rc);
 }
 
+
+static void test_do_set()
+{
+  MYSQL_STMT *stmt_do, *stmt_set;
+  char *query;
+  int rc, i;
+  myheader("test_do_set");
+  
+  rc = mysql_query(mysql, "DROP TABLE IF EXISTS t1");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t1 (a int)");
+  myquery(rc);
+  
+  query= (char*)"do @var:=(1 in (select * from t1))";
+  stmt_do= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_do);
+
+  query= (char*)"set @var=(1 in (select * from t1))";
+  stmt_set= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_set);
+
+  for (i= 0; i < 3; i++)
+  {
+    rc= mysql_execute(stmt_do);
+    mystmt(stmt_do, rc);
+    fprintf(stdout, "do %i\n", i);
+    rc= mysql_execute(stmt_set);
+    mystmt(stmt_set, rc);
+    fprintf(stdout, "set %i\n", i);  
+  }
+  
+  mysql_stmt_close(stmt_do);
+  mysql_stmt_close(stmt_set);
+}
+
+static void test_multi()
+{
+  MYSQL_STMT *stmt_delete, *stmt_update, *stmt_select1, *stmt_select2;
+  char *query;
+  MYSQL_BIND bind[1];
+  int rc, i;
+  long param= 1, length= 1;
+  myheader("test_multi");
+
+  bind[0].buffer_type= MYSQL_TYPE_LONG;
+  bind[0].buffer= (char *)&param;
+  bind[0].buffer_length= 0;
+  bind[0].is_null= 0;
+  bind[0].length= &length;
+
+  rc = mysql_query(mysql, "DROP TABLE IF EXISTS t1, t2");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t1 (a int, b int)");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t2 (a int, b int)");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"insert into t1 values (3,3), (2,2), (1,1)");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"insert into t2 values (3,3), (2,2), (1,1)");
+  myquery(rc);
+  
+  query= (char*)"delete t1,t2 from t1,t2 where t1.a=t2.a and t1.b=10";
+  stmt_delete= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_delete);
+
+  query= (char*)"update t1,t2 set t1.b=10,t2.b=10 where t1.a=t2.a and t1.b=?";
+  stmt_update= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_update);
+
+  query= (char*)"select * from t1";
+  stmt_select1= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_select1);
+
+  query= (char*)"select * from t2";
+  stmt_select2= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_select2);
+
+  for(i= 0; i < 3; i++)
+  {
+    rc= mysql_bind_param(stmt_update, bind);
+    mystmt(stmt_update,rc);
+
+    rc= mysql_execute(stmt_update);
+    mystmt(stmt_update, rc);
+    fprintf(stdout, "update %ld\n", param);
+  
+    rc= mysql_execute(stmt_delete);
+    mystmt(stmt_delete, rc);
+    fprintf(stdout, "delete %ld\n", param);
+
+    rc= mysql_execute(stmt_select1);
+    mystmt(stmt_select1, rc);
+    assert((uint)(3-param) == my_process_stmt_result(stmt_select1));
+
+    rc= mysql_execute(stmt_select2);
+    mystmt(stmt_select2, rc);
+    assert((uint)(3-param) == my_process_stmt_result(stmt_select2));
+
+    param++;
+  }
+
+  mysql_stmt_close(stmt_delete);
+  mysql_stmt_close(stmt_update);
+  mysql_stmt_close(stmt_select1);
+  mysql_stmt_close(stmt_select2);
+  rc= mysql_query(mysql,"drop table t1,t2");
+  myquery(rc);
+}
+
+
+static void test_insert_select()
+{
+  MYSQL_STMT *stmt_insert, *stmt_select;
+  char *query;
+  int rc, i;
+  myheader("test_insert_select");
+
+  rc = mysql_query(mysql, "DROP TABLE IF EXISTS t1, t2");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t1 (a int)");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"create table t2 (a int)");
+  myquery(rc);
+
+  rc= mysql_query(mysql,"insert into t2 values (1)");
+  myquery(rc);
+  
+  query= (char*)"insert into t1 select a from t2";
+  stmt_insert= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_insert);
+
+  query= (char*)"select * from t1";
+  stmt_select= mysql_prepare(mysql, query, strlen(query));
+  mystmt_init(stmt_select);
+
+  for(i= 0; i < 3; i++)
+  {
+    rc= mysql_execute(stmt_insert);
+    mystmt(stmt_insert, rc);
+    fprintf(stdout, "insert %u\n", i);
+  
+    rc= mysql_execute(stmt_select);
+    mystmt(stmt_select, rc);
+    assert((i+1) == my_process_stmt_result(stmt_select));
+  }
+
+  mysql_stmt_close(stmt_insert);
+  mysql_stmt_close(stmt_select);
+  rc= mysql_query(mysql,"drop table t1,t2");
+  myquery(rc);
+}
+
+
 /*
   Read and parse arguments and MySQL options from my.cnf
 */
@@ -8831,7 +9025,7 @@ int main(int argc, char **argv)
     test_select_prepare();  /* prepare select - protocol_prep debug */
     test_select();          /* simple select test */
     test_select_version();  /* select with variables */
-    test_select_simple();   /* simple select prepare */
+    test_select_show_table();/* simple show prepare */
 #if NOT_USED
   /* 
      Enable this tests from 4.1.1 when mysql_param_result() is 
@@ -8932,6 +9126,9 @@ int main(int argc, char **argv)
     test_selecttmp();	    /* temporary table used in select execution */
     test_create_drop();	    /* some table manipulation BUG#2811 */
     test_rename();	    /* rename test */
+    test_do_set();	    /* DO & SET commands test BUG#3393 */
+    test_multi();	    /* test of multi delete & update */
+    test_insert_select();   /* test INSERT ... SELECT */
 
     end_time= time((time_t *)0);
     total_time+= difftime(end_time, start_time);