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fixed WHERE condition optimisation in PS

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sql/sql_prepare.cc:
  reset current_select before query rexecution
  assirn prepared statement arena in time of execution
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unknown 2004-07-01 01:52:05 +03:00
parent ba4bd06f75
commit c92670d80b
1 changed files with 3 additions and 0 deletions
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3
sql/sql_prepare.cc
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@ -1584,6 +1584,7 @@ void reset_stmt_for_execute(THD *thd, LEX *lex)
unit->reinit_exec_mechanism(); unit->reinit_exec_mechanism();
} }
} }
lex->current_select= &lex->select_lex;
} }
@ -1666,10 +1667,12 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
mysql_delete(), mysql_update() and mysql_select() to not to mysql_delete(), mysql_update() and mysql_select() to not to
have re-check on setup_* and other things .. have re-check on setup_* and other things ..
*/ */
thd->current_arena= stmt;
thd->protocol= &thd->protocol_prep; // Switch to binary protocol thd->protocol= &thd->protocol_prep; // Switch to binary protocol
mysql_execute_command(thd); mysql_execute_command(thd);
thd->lex->unit.cleanup(); thd->lex->unit.cleanup();
thd->protocol= &thd->protocol_simple; // Use normal protocol thd->protocol= &thd->protocol_simple; // Use normal protocol
thd->current_arena= 0;
if (!(specialflag & SPECIAL_NO_PRIOR)) if (!(specialflag & SPECIAL_NO_PRIOR))
my_pthread_setprio(pthread_self(), WAIT_PRIOR); my_pthread_setprio(pthread_self(), WAIT_PRIOR);