mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-23 07:05:36 +03:00
3919c541ac
* Fix clang warnings * Remove vim tab guides * initialize variables * 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length * Fix ISO C++17 does not allow 'register' storage class specifier for outdated bison * chars are unsigned on ARM, having if (ival < 0) always false * chars are unsigned by default on ARM and comparison with -1 if always true
111 lines
3.1 KiB
C++
111 lines
3.1 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_div.cpp 3921 2013-06-19 18:59:56Z bwilkinson $
|
|
*
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include <cstdlib>
|
|
#include <string>
|
|
#include <sstream>
|
|
#define __STDC_LIMIT_MACROS
|
|
#include <stdint.h>
|
|
using namespace std;
|
|
|
|
#include "functor_real.h"
|
|
#include "funchelpers.h"
|
|
#include "functioncolumn.h"
|
|
#include "rowgroup.h"
|
|
using namespace execplan;
|
|
|
|
#include "dataconvert.h"
|
|
|
|
namespace funcexp
|
|
{
|
|
CalpontSystemCatalog::ColType Func_div::operationType(FunctionParm& fp,
|
|
CalpontSystemCatalog::ColType& resultType)
|
|
{
|
|
return resultType;
|
|
}
|
|
|
|
int64_t Func_div::getIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& op_ct)
|
|
{
|
|
double val1 = parm[0]->data()->getDoubleVal(row, isNull);
|
|
double val2 = parm[1]->data()->getDoubleVal(row, isNull);
|
|
|
|
if (val2 == 0 || val2 == NAN)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
// MCOL-179 InnoDB doesn't round or convert to int before dividing.
|
|
return static_cast<int64_t>(val1 / val2);
|
|
|
|
#if 0
|
|
int64_t int_val2 = (int64_t)(val2 > 0 ? val2 + 0.5 : val2 - 0.5);
|
|
|
|
if (int_val2 == 0)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
int64_t int_val1 = (int64_t)(val1 > 0 ? val1 + 0.5 : val1 - 0.5);
|
|
|
|
// MCOL-176 If abs(int_val2) is small enough (like -1), then, this may cause overflow.
|
|
// This kludge stops the crash.
|
|
if (int_val1 == INT64_MIN)
|
|
{
|
|
--int_val1;
|
|
}
|
|
|
|
return int_val1 / int_val2;
|
|
#endif
|
|
}
|
|
|
|
uint64_t Func_div::getUintVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& op_ct)
|
|
{
|
|
uint64_t val1 = parm[0]->data()->getUintVal(row, isNull);
|
|
uint64_t val2 = parm[1]->data()->getUintVal(row, isNull);
|
|
|
|
if (val2 == 0)
|
|
{
|
|
isNull = true;
|
|
return 0;
|
|
}
|
|
|
|
return val1 / val2;
|
|
}
|
|
|
|
double Func_div::getDoubleVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& ct)
|
|
{
|
|
return getIntVal(row, parm, isNull, ct);
|
|
}
|
|
|
|
string Func_div::getStrVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
|
|
CalpontSystemCatalog::ColType& ct)
|
|
{
|
|
return intToString(getIntVal(row, parm, isNull, ct));
|
|
}
|
|
|
|
} // namespace funcexp
|