You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-10-31 18:30:33 +03:00
120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; version 2 of
|
|
the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/****************************************************************************
|
|
* $Id: func_period_diff.cpp 2477 2011-04-01 16:07:35Z rdempsey $
|
|
*
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include <cstdlib>
|
|
#include <string>
|
|
#include <sstream>
|
|
using namespace std;
|
|
|
|
#include "functor_int.h"
|
|
#include "funchelpers.h"
|
|
#include "functioncolumn.h"
|
|
#include "rowgroup.h"
|
|
using namespace execplan;
|
|
|
|
#include "dataconvert.h"
|
|
|
|
namespace funcexp
|
|
{
|
|
#define YY_PART_YEAR 70
|
|
|
|
inline uint64_t convert_period_to_month(uint64_t period)
|
|
{
|
|
uint64_t a, b;
|
|
|
|
if (period == 0 || period > 999912)
|
|
return 0L;
|
|
|
|
if ((a = period / 100) < YY_PART_YEAR)
|
|
a += 2000;
|
|
else if (a < 100)
|
|
a += 1900;
|
|
|
|
b = period % 100;
|
|
return a * 12 + b - 1;
|
|
}
|
|
|
|
int64_t getArgSInt64Val(rowgroup::Row& row, TreeNode* exp, bool& isNull)
|
|
{
|
|
switch (exp->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::DATE:
|
|
case execplan::CalpontSystemCatalog::DATETIME:
|
|
case execplan::CalpontSystemCatalog::TIMESTAMP: return exp->getIntVal(row, isNull);
|
|
|
|
case execplan::CalpontSystemCatalog::DECIMAL:
|
|
case execplan::CalpontSystemCatalog::UDECIMAL:
|
|
{
|
|
IDB_Decimal d = exp->getDecimalVal(row, isNull);
|
|
return d.toSInt64Round();
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::VARCHAR:
|
|
case execplan::CalpontSystemCatalog::CHAR:
|
|
case execplan::CalpontSystemCatalog::TEXT:
|
|
{
|
|
const auto& str = exp->getStrVal(row, isNull);
|
|
return str.isNull() ? 0 : atoi(str.str());
|
|
}
|
|
|
|
case execplan::CalpontSystemCatalog::DOUBLE:
|
|
case execplan::CalpontSystemCatalog::FLOAT:
|
|
{
|
|
datatypes::TDouble d(exp->getDoubleVal(row, isNull));
|
|
return d.toMCSSInt64Round();
|
|
}
|
|
|
|
default: isNull = true;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
CalpontSystemCatalog::ColType Func_period_diff::operationType(FunctionParm& /*fp*/,
|
|
CalpontSystemCatalog::ColType& resultType)
|
|
{
|
|
return resultType;
|
|
}
|
|
|
|
int64_t Func_period_diff::getIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& /*op_ct*/)
|
|
{
|
|
uint64_t period1 = (uint64_t)getArgSInt64Val(row, parm[0]->data(), isNull);
|
|
|
|
if (isNull)
|
|
return 0;
|
|
|
|
uint64_t period2 = (uint64_t)getArgSInt64Val(row, parm[1]->data(), isNull);
|
|
|
|
if (isNull)
|
|
return 0;
|
|
|
|
return convert_period_to_month(period1) - convert_period_to_month(period2);
|
|
}
|
|
|
|
} // namespace funcexp
|