mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-06-01 22:41:43 +03:00
28fe2c0b70
For the initial BLOB/TEXT pull request we put them in the same bucket as VARBINARY, forcing many functions to be disabled. This patch enables the same TEXT function support as VARCHAR.
105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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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_elt.cpp 2665 2011-06-01 20:42:52Z rdempsey $
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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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using namespace std;
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#include "functor_str.h"
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#include "funchelpers.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 "dataconvert.h"
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using namespace dataconvert;
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_elt::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
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{
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return resultType;
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}
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string Func_elt::getStrVal(rowgroup::Row& row,
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FunctionParm& parm,
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bool& isNull,
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CalpontSystemCatalog::ColType&)
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{
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uint64_t number = 0;
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//get number
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switch (parm[0]->data()->resultType().colDataType)
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{
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case CalpontSystemCatalog::BIGINT:
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case CalpontSystemCatalog::MEDINT:
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case CalpontSystemCatalog::SMALLINT:
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case CalpontSystemCatalog::TINYINT:
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case CalpontSystemCatalog::INT:
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case CalpontSystemCatalog::DOUBLE:
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case CalpontSystemCatalog::FLOAT:
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case CalpontSystemCatalog::CHAR:
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case CalpontSystemCatalog::TEXT:
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case CalpontSystemCatalog::VARCHAR:
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{
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double value = parm[0]->data()->getDoubleVal(row, isNull);
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number = (int64_t) value;
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break;
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}
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case CalpontSystemCatalog::DECIMAL:
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{
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IDB_Decimal d = parm[0]->data()->getDecimalVal(row, isNull);
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number = d.value / helpers::power(d.scale);
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int lefto = (d.value - number * helpers::power(d.scale)) / helpers::power(d.scale-1);
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if ( number >= 0 && lefto > 4 )
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number++;
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if ( number < 0 && lefto < -4 )
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number--;
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break;
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}
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default:
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isNull = true;
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return "";
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}
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if (number < 1)
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{
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isNull = true;
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return "";
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}
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if (number > parm.size()-1 )
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{
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isNull = true;
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return "";
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}
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return stringValue(parm[number], row, isNull);
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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