mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-26 11:48:52 +03:00
3bcc2e2fda
There were numerous memory leaks in plugin's code and associated code. During typical run of MTR tests it leaked around 65 megabytes of objects. As a result they may severely affect long-lived connections. This patch fixes (almost) all leaks found in the plugin. The exceptions are two leaks associated with SHOW CREATE TABLE columnstore_table and getting information of columns of columnstore-handled table. These should be fixed on the server side and work is on the way.
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
|
|
Copyright (C) 2016 MariaDB Corporation
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; version 2 of
|
|
the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/***********************************************************************
|
|
* $Id: ha_select_sub.cpp 9210 2013-01-21 14:10:42Z rdempsey $
|
|
*
|
|
*
|
|
***********************************************************************/
|
|
/** class SelectSubQuery definition */
|
|
|
|
//#define NDEBUG
|
|
#define PREFER_MY_CONFIG_H
|
|
#include <my_config.h>
|
|
#include <cassert>
|
|
using namespace std;
|
|
|
|
#include "idb_mysql.h"
|
|
|
|
#include "parsetree.h"
|
|
#include "logicoperator.h"
|
|
#include "selectfilter.h"
|
|
#include "simplescalarfilter.h"
|
|
#include "predicateoperator.h"
|
|
#include "rowcolumn.h"
|
|
#include "simplecolumn.h"
|
|
using namespace execplan;
|
|
|
|
#include "errorids.h"
|
|
using namespace logging;
|
|
|
|
#include "ha_subquery.h"
|
|
|
|
namespace cal_impl_if
|
|
{
|
|
SelectSubQuery::SelectSubQuery(gp_walk_info& gwip) : SubQuery(gwip), fSelSub(NULL)
|
|
{
|
|
}
|
|
|
|
SelectSubQuery::SelectSubQuery(gp_walk_info& gwip, Item_subselect* selSub) : SubQuery(gwip), fSelSub(selSub)
|
|
{
|
|
}
|
|
|
|
SelectSubQuery::~SelectSubQuery()
|
|
{
|
|
}
|
|
|
|
SCSEP SelectSubQuery::transform()
|
|
{
|
|
idbassert(fSelSub);
|
|
SCSEP csep(new CalpontSelectExecutionPlan());
|
|
csep->sessionID(fGwip.sessionid);
|
|
csep->subType(CalpontSelectExecutionPlan::SELECT_SUBS);
|
|
|
|
// gwi for the sub query
|
|
gp_walk_info gwi(fGwip.timeZone, fGwip.subQueriesChain);
|
|
gwi.thd = fGwip.thd;
|
|
gwi.subQuery = this;
|
|
|
|
// @4632 merge table list to gwi in case there is FROM sub to be referenced
|
|
// in the SELECT sub
|
|
gwi.derivedTbCnt = fGwip.derivedTbList.size();
|
|
uint32_t tbCnt = fGwip.tbList.size();
|
|
|
|
gwi.tbList.insert(gwi.tbList.begin(), fGwip.tbList.begin(), fGwip.tbList.end());
|
|
gwi.derivedTbList.insert(gwi.derivedTbList.begin(), fGwip.derivedTbList.begin(), fGwip.derivedTbList.end());
|
|
|
|
if (getSelectPlan(gwi, *(fSelSub->get_select_lex()), csep, false) != 0)
|
|
{
|
|
if (!gwi.fatalParseError)
|
|
{
|
|
fGwip.fatalParseError = true;
|
|
fGwip.parseErrorText = "Error occurred in SelectSubQuery::transform()";
|
|
}
|
|
else
|
|
{
|
|
fGwip.fatalParseError = gwi.fatalParseError;
|
|
fGwip.parseErrorText = gwi.parseErrorText;
|
|
}
|
|
|
|
csep.reset();
|
|
return csep;
|
|
}
|
|
|
|
fGwip.subselectList.push_back(csep);
|
|
|
|
// remove outer query tables
|
|
CalpontSelectExecutionPlan::TableList tblist;
|
|
|
|
if (csep->tableList().size() >= tbCnt)
|
|
tblist.insert(tblist.begin(), csep->tableList().begin() + tbCnt, csep->tableList().end());
|
|
|
|
CalpontSelectExecutionPlan::SelectList derivedTbList;
|
|
|
|
if (csep->derivedTableList().size() >= gwi.derivedTbCnt)
|
|
derivedTbList.insert(derivedTbList.begin(), csep->derivedTableList().begin() + gwi.derivedTbCnt,
|
|
csep->derivedTableList().end());
|
|
|
|
csep->tableList(tblist);
|
|
csep->derivedTableList(derivedTbList);
|
|
return csep;
|
|
}
|
|
|
|
} // namespace cal_impl_if
|