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69 lines
1.9 KiB
C++
69 lines
1.9 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_concat.cpp 3918 2013-06-19 13:54:34Z bwilkinson $
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*
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*
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****************************************************************************/
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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 "functioncolumn.h"
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#include "utils_utf8.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 "dataconvert.h"
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using namespace dataconvert;
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#define STRCOLL_ENH__
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_concat::operationType(FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
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{
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// operation type is not used by this functor
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return fp[0]->data()->resultType();
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}
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// Returns the string that results from concatenating the arguments.
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// concat() returns NULL if any argument is NULL.
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//
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string Func_concat::getStrVal(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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string ret = stringValue(parm[0], row, isNull);
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for ( unsigned int id = 1 ; id < parm.size() ; id++) {
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ret.append( stringValue(parm[id], row, isNull) );
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}
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return ret;
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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