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c43f894c51
------------------------------------------------------------ revno: 2630.22.3 committer: Davi Arnaut <Davi.Arnaut@Sun.COM> branch nick: 4284-6.0 timestamp: Thu 2008-08-07 22:33:43 -0300 message: WL#4284: Transactional DDL locking Make transaction management more modular through a new interface. The overall objective of this change is to provide groundwork for the design of transactional DDL locking by cleaning up the transaction high level API to better distinguish operations implicit and explicit, and single statement transaction from operations on the normal transaction. Having a a high-level interface for transaction management provides a better base for implementing transactional concepts that are not always tied to storage engines and also makes it easier to interect with other higher level modules of the server.
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/* Copyright (C) 2000-2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Execute DO statement */
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#include "mysql_priv.h"
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#include "transaction.h"
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bool mysql_do(THD *thd, List<Item> &values)
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{
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List_iterator<Item> li(values);
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Item *value;
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DBUG_ENTER("mysql_do");
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if (setup_fields(thd, 0, values, MARK_COLUMNS_NONE, 0, 0))
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DBUG_RETURN(TRUE);
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while ((value = li++))
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value->val_int();
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free_underlaid_joins(thd, &thd->lex->select_lex);
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if (thd->is_error())
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{
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/*
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Rollback the effect of the statement, since next instruction
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will clear the error and the rollback in the end of
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dispatch_command() won't work.
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*/
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trans_rollback_stmt(thd);
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thd->clear_error(); // DO always is OK
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}
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my_ok(thd);
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DBUG_RETURN(FALSE);
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}
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