1/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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 St, Fifth Floor, Boston, MA 02110-1301 USA */
15
16
17/* Execute DO statement */
18
19#include "mariadb.h"
20#include "sql_priv.h"
21#include "transaction.h"
22#include "unireg.h"
23#include "sql_do.h"
24#include "sql_base.h" // setup_fields
25#include "sql_select.h" // free_underlaid_joins
26
27bool mysql_do(THD *thd, List<Item> &values)
28{
29 List_iterator<Item> li(values);
30 Item *value;
31 DBUG_ENTER("mysql_do");
32 if (setup_fields(thd, Ref_ptr_array(), values, COLUMNS_READ, 0, NULL, 0))
33 DBUG_RETURN(TRUE);
34 while ((value = li++))
35 (void) value->is_null();
36 free_underlaid_joins(thd, &thd->lex->select_lex);
37
38 if (unlikely(thd->is_error()))
39 {
40 /*
41 Rollback the effect of the statement, since next instruction
42 will clear the error and the rollback in the end of
43 mysql_execute_command() won't work.
44 */
45 if (! thd->in_sub_stmt)
46 trans_rollback_stmt(thd);
47 thd->clear_error(); // DO always is OK
48 }
49 my_ok(thd);
50 DBUG_RETURN(FALSE);
51}
52