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https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
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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.
87 lines
2.6 KiB
C++
87 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_isnull.cpp 3648 2013-03-19 21:33:52Z dhall $
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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_bool.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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using namespace rowgroup;
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#include "dataconvert.h"
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_isnull::operationType (FunctionParm& fp,
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CalpontSystemCatalog::ColType& resultType)
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{
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// operation type of idb_isnull should be the same as the argument type
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assert (fp.size() == 1);
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return fp[0]->data()->resultType();
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}
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/**
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* getBoolVal API definition
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*
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* This would be the most commonly called API for idb_isnull function
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*/
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bool Func_isnull::getBoolVal(Row& row,
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FunctionParm& parm,
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bool& isNull,
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CalpontSystemCatalog::ColType& op_ct)
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{
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switch (op_ct.colDataType)
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{
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// For the purpose of this function, one does not need to get the value of
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// the argument. One only need to know if the argument is NULL. The passed
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// in parameter isNull will be set if the parameter is evaluated NULL.
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// Please note that before this function returns, isNull should be set to
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// false, otherwise the result of the function would be considered NULL,
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// which is not possible for idb_isnull().
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case CalpontSystemCatalog::DECIMAL:
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case CalpontSystemCatalog::UDECIMAL:
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parm[0]->data()->getDecimalVal(row, isNull);
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break;
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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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parm[0]->data()->getStrVal(row, isNull);
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break;
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default:
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parm[0]->data()->getIntVal(row, isNull);
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}
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bool ret = isNull;
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// It's important to reset isNull indicator.
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isNull = false;
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return (fIsNotNull? !ret : ret);
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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