mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-23 07:05:36 +03:00
b53c231ca6
This patch improves handling of NULLs in textual fields in ColumnStore. Previously empty strings were considered NULLs and it could be a problem if data scheme allows for empty strings. It was also one of major reasons of behavior difference between ColumnStore and other engines in MariaDB family. Also, this patch fixes some other bugs and incorrect behavior, for example, incorrect comparison for "column <= ''" which evaluates to constant True for all purposes before this patch.
1025 lines
24 KiB
C++
1025 lines
24 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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Copyright (C) 2019 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/****************************************************************************
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* $Id: func_nullif.cpp 2485 2011-04-05 19:01:13Z zzhu $
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*
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*
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****************************************************************************/
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#include <cstdlib>
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#include <string>
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#include <sstream>
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using namespace std;
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#include "functor_all.h"
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#include "functioncolumn.h"
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#include "rowgroup.h"
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using namespace execplan;
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#include "rowgroup.h"
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using namespace rowgroup;
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#include "errorcodes.h"
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#include "idberrorinfo.h"
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#include "errorids.h"
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using namespace logging;
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using namespace dataconvert;
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#include "funchelpers.h"
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using namespace funcexp;
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_nullif::operationType(FunctionParm& fp,
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CalpontSystemCatalog::ColType& resultType)
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{
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return resultType;
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}
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int64_t Func_nullif::getIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& op_ct)
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{
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int64_t exp1 = parm[0]->data()->getIntVal(row, isNull);
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int64_t exp2 = 0;
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switch (parm[1]->data()->resultType().colDataType)
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{
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case execplan::CalpontSystemCatalog::BIGINT:
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case execplan::CalpontSystemCatalog::INT:
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case execplan::CalpontSystemCatalog::MEDINT:
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case execplan::CalpontSystemCatalog::TINYINT:
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case execplan::CalpontSystemCatalog::SMALLINT:
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case execplan::CalpontSystemCatalog::DOUBLE:
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case execplan::CalpontSystemCatalog::FLOAT:
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case execplan::CalpontSystemCatalog::DECIMAL:
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case execplan::CalpontSystemCatalog::UDECIMAL:
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case execplan::CalpontSystemCatalog::VARCHAR:
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case execplan::CalpontSystemCatalog::CHAR:
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case execplan::CalpontSystemCatalog::TEXT:
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{
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exp2 = parm[1]->data()->getIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::UBIGINT:
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case execplan::CalpontSystemCatalog::UINT:
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case execplan::CalpontSystemCatalog::UMEDINT:
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case execplan::CalpontSystemCatalog::UTINYINT:
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case execplan::CalpontSystemCatalog::USMALLINT:
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{
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exp2 = parm[1]->data()->getUintVal(row, isNull);
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break;
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}
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case execplan::CalpontSystemCatalog::DATE:
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{
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if (parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::DATETIME)
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{
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// NULLIF arg0 is DATETIME, arg1 is DATE,
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// Upgrade arg1 to datetime
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exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
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}
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else
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{
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// NULLIF arg0 is not DATETIME (might be date), arg1 is not DATE
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// Use arg1 as DATE
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exp2 = parm[1]->data()->getDateIntVal(row, isNull);
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}
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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break;
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case execplan::CalpontSystemCatalog::DATETIME:
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{
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exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
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if ((parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::DATE) ||
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(parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::DATETIME))
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{
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// NULLIF arg0 is DATE, arg1 is DATETIME,
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// Upgrade arg1 to datetime
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// When comparing exp1 as a Date, we can't simply promote. We have
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// to be careful of the return value in case of not null return.
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int64_t exp1 = parm[0]->data()->getDatetimeIntVal(row, isNull);
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if (exp1 == exp2)
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{
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isNull = true;
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return 0;
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}
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// since exp1 here is inside the block, when we leave the block, the
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// original (Date) value is restored.
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}
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::TIMESTAMP:
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{
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exp2 = parm[1]->data()->getTimestampIntVal(row, isNull);
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if ((parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::TIMESTAMP) ||
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(parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::DATETIME))
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{
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// NULLIF arg0 is DATETIME, arg1 is TIMESTAMP,
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// Upgrade arg0 to timestamp
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// When comparing exp1 as a Date, we can't simply promote. We have
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// to be careful of the return value in case of not null return.
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int64_t exp1 = parm[0]->data()->getTimestampIntVal(row, isNull);
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if (exp1 == exp2)
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{
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isNull = true;
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return 0;
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}
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// since exp1 here is inside the block, when we leave the block, the
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// original (Date) value is restored.
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}
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::TIME:
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{
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exp2 = parm[1]->data()->getTimeIntVal(row, isNull);
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if ((parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::DATETIME) ||
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(parm[0]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::TIME))
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{
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// NULLIF arg0 is DATETIME, arg1 is TIME,
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// Upgrade arg1 to time
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// When comparing exp1 as a Date, we can't simply promote. We have
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// to be careful of the return value in case of not null return.
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int64_t exp1 = parm[0]->data()->getTimeIntVal(row, isNull);
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if (exp1 == exp2)
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{
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isNull = true;
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return 0;
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}
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// since exp1 here is inside the block, when we leave the block, the
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// original (Date) value is restored.
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}
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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default:
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{
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isNull = true;
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}
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}
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if (exp1 == exp2)
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{
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isNull = true;
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return 0;
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}
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return exp1;
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}
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uint64_t Func_nullif::getUintVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& op_ct)
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{
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uint64_t exp1 = parm[0]->data()->getUintVal(row, isNull);
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uint64_t exp2 = 0;
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switch (parm[1]->data()->resultType().colDataType)
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{
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case execplan::CalpontSystemCatalog::BIGINT:
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case execplan::CalpontSystemCatalog::INT:
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case execplan::CalpontSystemCatalog::MEDINT:
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case execplan::CalpontSystemCatalog::TINYINT:
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case execplan::CalpontSystemCatalog::SMALLINT:
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case execplan::CalpontSystemCatalog::DOUBLE:
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case execplan::CalpontSystemCatalog::UDOUBLE:
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case execplan::CalpontSystemCatalog::FLOAT:
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case execplan::CalpontSystemCatalog::UFLOAT:
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case execplan::CalpontSystemCatalog::DECIMAL:
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case execplan::CalpontSystemCatalog::UDECIMAL:
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case execplan::CalpontSystemCatalog::VARCHAR:
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case execplan::CalpontSystemCatalog::CHAR:
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case execplan::CalpontSystemCatalog::TEXT:
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{
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int64_t iexp2 = parm[1]->data()->getIntVal(row, isNull);
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if (isNull || iexp2 < 0)
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{
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isNull = false;
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return exp1;
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}
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exp2 = iexp2;
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break;
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}
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case execplan::CalpontSystemCatalog::UBIGINT:
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case execplan::CalpontSystemCatalog::UINT:
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case execplan::CalpontSystemCatalog::UMEDINT:
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case execplan::CalpontSystemCatalog::UTINYINT:
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case execplan::CalpontSystemCatalog::USMALLINT:
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{
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exp2 = parm[1]->data()->getUintVal(row, isNull);
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break;
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}
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case execplan::CalpontSystemCatalog::DATE:
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{
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exp2 = parm[1]->data()->getDateIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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break;
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case execplan::CalpontSystemCatalog::DATETIME:
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{
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exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::TIMESTAMP:
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{
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exp2 = parm[1]->data()->getTimestampIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::TIME:
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{
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exp2 = parm[1]->data()->getTimeIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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default:
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{
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isNull = true;
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}
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}
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if (exp1 == exp2)
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{
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isNull = true;
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return 0;
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}
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return exp1;
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}
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string Func_nullif::getStrVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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CalpontSystemCatalog::ColType& op_ct)
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{
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string exp1 = parm[0]->data()->getStrVal(row, isNull).safeString("");
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CHARSET_INFO* cs = parm[0]->data()->resultType().getCharset();
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if (isNull)
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{
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// NULLIF(NULL, ...) is NULL, according to server's results.
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return "";
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}
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string exp2 = parm[1]->data()->getStrVal(row, isNull).safeString("");
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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int datatype0 = parm[0]->data()->resultType().colDataType;
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int datatype1 = parm[1]->data()->resultType().colDataType;
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if (datatype0 == execplan::CalpontSystemCatalog::DATE &&
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(datatype1 == execplan::CalpontSystemCatalog::DATETIME ||
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datatype1 == execplan::CalpontSystemCatalog::TIMESTAMP))
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{
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exp1 = exp1 + " 00:00:00";
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}
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if (datatype1 == execplan::CalpontSystemCatalog::DATE &&
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(datatype0 == execplan::CalpontSystemCatalog::DATETIME ||
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datatype0 == execplan::CalpontSystemCatalog::TIMESTAMP))
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{
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exp2 = exp2 + " 00:00:00";
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}
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if (cs->strnncoll(exp1.c_str(), exp1.length(), exp2.c_str(), exp2.length()) == 0)
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{
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isNull = true;
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return "";
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}
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return parm[0]->data()->getStrVal(row, isNull).safeString("");
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}
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int32_t Func_nullif::getDateIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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CalpontSystemCatalog::ColType& ct)
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{
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int64_t exp1 = parm[0]->data()->getDateIntVal(row, isNull);
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int64_t exp2 = 0;
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switch (parm[1]->data()->resultType().colDataType)
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{
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case execplan::CalpontSystemCatalog::BIGINT:
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case execplan::CalpontSystemCatalog::INT:
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case execplan::CalpontSystemCatalog::MEDINT:
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case execplan::CalpontSystemCatalog::TINYINT:
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case execplan::CalpontSystemCatalog::SMALLINT:
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case execplan::CalpontSystemCatalog::DOUBLE:
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case execplan::CalpontSystemCatalog::FLOAT:
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case execplan::CalpontSystemCatalog::DECIMAL:
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case execplan::CalpontSystemCatalog::UDECIMAL:
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case execplan::CalpontSystemCatalog::VARCHAR:
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case execplan::CalpontSystemCatalog::CHAR:
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case execplan::CalpontSystemCatalog::TEXT:
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{
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exp2 = parm[1]->data()->getIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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case execplan::CalpontSystemCatalog::DATE:
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{
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exp2 = parm[1]->data()->getDateIntVal(row, isNull);
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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break;
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}
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break;
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case execplan::CalpontSystemCatalog::DATETIME:
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{
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exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
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|
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if (isNull)
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{
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isNull = false;
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return exp1;
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}
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|
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break;
|
|
}
|
|
|
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case execplan::CalpontSystemCatalog::TIMESTAMP:
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|
{
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exp2 = parm[1]->data()->getTimestampIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
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isNull = false;
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|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
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isNull = true;
|
|
}
|
|
}
|
|
|
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if (exp1 == exp2)
|
|
{
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isNull = true;
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return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
int64_t Func_nullif::getDatetimeIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
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CalpontSystemCatalog::ColType& ct)
|
|
{
|
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int64_t exp1 = parm[0]->data()->getDatetimeIntVal(row, isNull);
|
|
int64_t exp2 = 0;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
case execplan::CalpontSystemCatalog::DATE:
|
|
{
|
|
// Upgrade to datetime for proper comparison
|
|
exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
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|
case execplan::CalpontSystemCatalog::TIMESTAMP:
|
|
{
|
|
exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
isNull = true;
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
int64_t Func_nullif::getTimeIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& ct)
|
|
{
|
|
int64_t exp1 = parm[0]->data()->getTimeIntVal(row, isNull);
|
|
int64_t exp2 = 0;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
case execplan::CalpontSystemCatalog::TIMESTAMP:
|
|
{
|
|
exp2 = parm[1]->data()->getTimeIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
int64_t Func_nullif::getTimestampIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& ct)
|
|
{
|
|
int64_t exp1 = parm[0]->data()->getTimestampIntVal(row, isNull);
|
|
int64_t exp2 = 0;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
case execplan::CalpontSystemCatalog::TIMESTAMP:
|
|
{
|
|
exp2 = parm[1]->data()->getTimestampIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
double Func_nullif::getDoubleVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct)
|
|
{
|
|
double exp1 = parm[0]->data()->getDoubleVal(row, isNull);
|
|
double exp2 = 0;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
{
|
|
exp2 = parm[1]->data()->getDoubleVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::LONGDOUBLE:
|
|
{
|
|
exp2 = (double)parm[1]->data()->getLongDoubleVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::DATE:
|
|
{
|
|
exp2 = parm[1]->data()->getDateIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
{
|
|
exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
isNull = true;
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
long double Func_nullif::getLongDoubleVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct)
|
|
{
|
|
long double exp1 = parm[0]->data()->getLongDoubleVal(row, isNull);
|
|
long double exp2 = 0;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
{
|
|
exp2 = parm[1]->data()->getDoubleVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::LONGDOUBLE:
|
|
{
|
|
exp2 = parm[1]->data()->getLongDoubleVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::DATE:
|
|
{
|
|
exp2 = parm[1]->data()->getDateIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
{
|
|
exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::TIMESTAMP:
|
|
{
|
|
exp2 = parm[1]->data()->getTimestampIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
isNull = true;
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
execplan::IDB_Decimal Func_nullif::getDecimalVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct)
|
|
{
|
|
IDB_Decimal exp1 = parm[0]->data()->getDecimalVal(row, isNull);
|
|
IDB_Decimal exp2;
|
|
|
|
switch (parm[1]->data()->resultType().colDataType)
|
|
{
|
|
case execplan::CalpontSystemCatalog::BIGINT:
|
|
case execplan::CalpontSystemCatalog::INT:
|
|
case execplan::CalpontSystemCatalog::MEDINT:
|
|
case execplan::CalpontSystemCatalog::TINYINT:
|
|
case execplan::CalpontSystemCatalog::SMALLINT:
|
|
case execplan::CalpontSystemCatalog::UBIGINT:
|
|
case execplan::CalpontSystemCatalog::UINT:
|
|
case execplan::CalpontSystemCatalog::UMEDINT:
|
|
case execplan::CalpontSystemCatalog::UTINYINT:
|
|
case execplan::CalpontSystemCatalog::USMALLINT:
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
{
|
|
exp2 = parm[1]->data()->getDecimalVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
{
|
|
int64_t value = parm[1]->data()->getIntVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
exp2.value = value;
|
|
exp2.scale = 0;
|
|
}
|
|
/* fall through */
|
|
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::UDOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
case execplan::CalpontSystemCatalog::UFLOAT:
|
|
{
|
|
double value = parm[1]->data()->getDoubleVal(row, isNull);
|
|
|
|
if (isNull)
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
exp2.value = (int64_t)value;
|
|
exp2.scale = 0;
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::DATE:
|
|
{
|
|
int32_t s = 0;
|
|
int64_t x = 0;
|
|
|
|
string value = DataConvert::dateToString1(parm[1]->data()->getDateIntVal(row, isNull));
|
|
|
|
if (!isNull)
|
|
{
|
|
x = atoll(value.c_str());
|
|
|
|
if (s > 11)
|
|
s = 0;
|
|
|
|
if (s > 0)
|
|
{
|
|
x *= helpers::powerOf10_c[s];
|
|
}
|
|
else if (s < 0)
|
|
{
|
|
s = -s;
|
|
|
|
if (s >= (int32_t)value.size())
|
|
{
|
|
x = 0;
|
|
}
|
|
else
|
|
{
|
|
x /= helpers::powerOf10_c[s];
|
|
x *= helpers::powerOf10_c[s];
|
|
}
|
|
|
|
s = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
exp2.value = x;
|
|
exp2.scale = s;
|
|
}
|
|
break;
|
|
|
|
case execplan::CalpontSystemCatalog::TIME:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
case execplan::CalpontSystemCatalog::TIMESTAMP:
|
|
{
|
|
int32_t s = 0;
|
|
int64_t x = 0;
|
|
string value;
|
|
|
|
if (parm[1]->data()->resultType().colDataType == execplan::CalpontSystemCatalog::TIMESTAMP)
|
|
value =
|
|
DataConvert::timestampToString1(parm[1]->data()->getTimestampIntVal(row, isNull), op_ct.getTimeZone());
|
|
else
|
|
value = DataConvert::datetimeToString1(parm[1]->data()->getDatetimeIntVal(row, isNull));
|
|
|
|
if (!isNull)
|
|
{
|
|
// strip off micro seconds
|
|
value = value.substr(0, 14);
|
|
x = atoll(value.c_str());
|
|
|
|
if (s > 5)
|
|
s = 0;
|
|
|
|
if (s > 0)
|
|
{
|
|
x *= helpers::powerOf10_c[s];
|
|
}
|
|
else if (s < 0)
|
|
{
|
|
s = -s;
|
|
|
|
if (s >= (int32_t)value.size())
|
|
{
|
|
x = 0;
|
|
}
|
|
else
|
|
{
|
|
x /= helpers::powerOf10_c[s];
|
|
x *= helpers::powerOf10_c[s];
|
|
}
|
|
|
|
s = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
isNull = false;
|
|
return exp1;
|
|
}
|
|
|
|
exp2.value = x;
|
|
exp2.scale = s;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
std::ostringstream oss;
|
|
oss << "truncate: datatype of " << execplan::colDataTypeToString(op_ct.colDataType);
|
|
throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
|
|
}
|
|
}
|
|
|
|
if (exp1 == exp2)
|
|
{
|
|
isNull = true;
|
|
IDB_Decimal decimal;
|
|
decimal.value = 0;
|
|
decimal.scale = 0;
|
|
return decimal;
|
|
}
|
|
|
|
return exp1;
|
|
}
|
|
|
|
} // namespace funcexp
|