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123 lines
3.3 KiB
C++
123 lines
3.3 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_to_days.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
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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_int.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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#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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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_to_days::operationType( FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
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{
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return resultType;
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}
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int64_t Func_to_days::getIntVal(rowgroup::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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CalpontSystemCatalog::ColDataType type = parm[0]->data()->resultType().colDataType;
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uint32_t year = 0,
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month = 0,
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day = 0;
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switch (type)
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{
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case execplan::CalpontSystemCatalog::DATE:
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{
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int32_t val = parm[0]->data()->getDateIntVal(row, isNull);
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year = (uint32_t)((val >> 16) & 0xffff);
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month = (uint32_t)((val >> 12) & 0xf);
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day = (uint32_t)((val >> 6) & 0x3f);
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return helpers::calc_mysql_daynr(year, month, day);
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break;
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}
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case execplan::CalpontSystemCatalog::DATETIME:
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{
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int64_t val = parm[0]->data()->getDatetimeIntVal(row, isNull);
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year = (uint32_t)((val >> 48) & 0xffff);
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month = (uint32_t)((val >> 44) & 0xf);
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day = (uint32_t)((val >> 38) & 0x3f);
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return helpers::calc_mysql_daynr(year, month, day);
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break;
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}
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case execplan::CalpontSystemCatalog::VARCHAR: // including CHAR'
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case execplan::CalpontSystemCatalog::CHAR:
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{
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const string& value = parm[0]->data()->getStrVal(row, isNull);
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int64_t val = 0;
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if ( value.size() == 10 ) {
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// date type
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val = dataconvert::DataConvert::dateToInt(value);
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year = (uint32_t)((val >> 16) & 0xffff);
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month = (uint32_t)((val >> 12) & 0xf);
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day = (uint32_t)((val >> 6) & 0x3f);
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}
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else
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{ // datetime type
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val = dataconvert::DataConvert::datetimeToInt(value);
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year = (uint32_t)((val >> 48) & 0xffff);
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month = (uint32_t)((val >> 44) & 0xf);
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day = (uint32_t)((val >> 38) & 0x3f);
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}
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return helpers::calc_mysql_daynr(year, month, day);
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break;
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}
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default:
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{
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std::ostringstream oss;
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oss << "to_days: datatype of " << execplan::colDataTypeToString(type);;
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throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
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}
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}
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return 0;
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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