release/src/router/mysql/sql/sql_do.cc

   1 /* Copyright (c) 2000-2006, 2008 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16
  17 /* Execute DO statement */
  18
  19 #include "mysql_priv.h"
  20
  21 bool mysql_do(THD *thd, List<Item> &values)
  22 {
  23   List_iterator<Item> li(values);
  24   Item *value;
  25   DBUG_ENTER("mysql_do");
  26   if (setup_fields(thd, 0, values, MARK_COLUMNS_NONE, 0, 0))
  27     DBUG_RETURN(TRUE);
  28   while ((value = li++))
  29     value->val_int();
  30   free_underlaid_joins(thd, &thd->lex->select_lex);
  31
  32   if (thd->is_error())
  33   {
  34     /*
  35       Rollback the effect of the statement, since next instruction
  36       will clear the error and the rollback in the end of
  37       dispatch_command() won't work.
  38     */
  39     ha_autocommit_or_rollback(thd, thd->is_error());
  40     thd->clear_error(); // DO always is OK
  41   }
  42   my_ok(thd);
  43   DBUG_RETURN(FALSE);
  44 }