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mariadb-columnstore-engine/utils/funcexp/func_ceil.cpp
Andrew Hutchings 01446d1e22 Reformat all code to coding standard
2017-10-26 17:18:17 +01:00

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/* 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_ceil.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
*
*
****************************************************************************/
#include <cstdlib>
#include <iomanip>
#include <string>
using namespace std;
#include "functor_real.h"
#include "functioncolumn.h"
using namespace execplan;
#include "rowgroup.h"
using namespace rowgroup;
#include "errorcodes.h"
#include "idberrorinfo.h"
#include "errorids.h"
using namespace logging;
using namespace dataconvert;
#include "funchelpers.h"
namespace funcexp
{
CalpontSystemCatalog::ColType Func_ceil::operationType(FunctionParm& fp, CalpontSystemCatalog::ColType& resultType)
{
return fp[0]->data()->resultType();
}
int64_t Func_ceil::getIntVal(Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType& op_ct)
{
int64_t ret = 0;
switch (op_ct.colDataType)
{
case CalpontSystemCatalog::BIGINT:
case CalpontSystemCatalog::INT:
case CalpontSystemCatalog::MEDINT:
case CalpontSystemCatalog::TINYINT:
case CalpontSystemCatalog::SMALLINT:
case CalpontSystemCatalog::DECIMAL:
case CalpontSystemCatalog::UDECIMAL:
{
if (op_ct.scale == 0)
{
ret = parm[0]->data()->getIntVal(row, isNull);
break;
}
IDB_Decimal decimal = parm[0]->data()->getDecimalVal(row, isNull);
if (isNull)
break;
ret = decimal.value;
// negative scale is not supported by CNX yet
if (decimal.scale > 0)
{
if (decimal.scale >= 19)
{
std::ostringstream oss;
oss << "ceil: datatype of " << colDataTypeToString(op_ct.colDataType)
<< " with scale " << (int) decimal.scale << " is beyond supported scale";
throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
}
// Adjust to an int based on the scale.
int64_t tmp = ret;
ret /= helpers::powerOf10_c[decimal.scale];
// Add 1 if this is a positive number and there were values to the right of the
// decimal point so that we return the largest integer value not less than X.
if ((tmp - (ret * helpers::powerOf10_c[decimal.scale]) > 0))
ret += 1;
}
}
break;
case CalpontSystemCatalog::UBIGINT:
case CalpontSystemCatalog::UINT:
case CalpontSystemCatalog::UMEDINT:
case CalpontSystemCatalog::UTINYINT:
case CalpontSystemCatalog::USMALLINT:
{
ret = (int64_t)(parm[0]->data()->getUintVal(row, isNull));
}
break;
case CalpontSystemCatalog::DOUBLE:
case CalpontSystemCatalog::UDOUBLE:
case CalpontSystemCatalog::FLOAT:
case CalpontSystemCatalog::UFLOAT:
{
ret = (int64_t) ceil(parm[0]->data()->getDoubleVal(row, isNull));
}
break;
case CalpontSystemCatalog::VARCHAR:
case CalpontSystemCatalog::CHAR:
case CalpontSystemCatalog::TEXT:
{
const string& str = parm[0]->data()->getStrVal(row, isNull);
if (!isNull)
ret = (int64_t) ceil(strtod(str.c_str(), 0));
}
break;
case CalpontSystemCatalog::DATE:
{
Date d (parm[0]->data()->getDateIntVal(row, isNull));
if (!isNull)
ret = d.convertToMySQLint();
}
break;
case CalpontSystemCatalog::DATETIME:
{
DateTime dt(parm[0]->data()->getDatetimeIntVal(row, isNull));
if (!isNull)
ret = dt.convertToMySQLint();
}
break;
default:
{
std::ostringstream oss;
oss << "ceil: datatype of " << colDataTypeToString(op_ct.colDataType)
<< " is not supported";
throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
}
}
return ret;
}
uint64_t Func_ceil::getUintVal(Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType& op_ct)
{
uint64_t ret = 0;
switch (op_ct.colDataType)
{
case CalpontSystemCatalog::BIGINT:
case CalpontSystemCatalog::INT:
case CalpontSystemCatalog::MEDINT:
case CalpontSystemCatalog::TINYINT:
case CalpontSystemCatalog::SMALLINT:
case CalpontSystemCatalog::DECIMAL:
case CalpontSystemCatalog::UDECIMAL:
{
ret = (uint64_t)parm[0]->data()->getIntVal(row, isNull);
}
break;
case CalpontSystemCatalog::UBIGINT:
case CalpontSystemCatalog::UINT:
case CalpontSystemCatalog::UMEDINT:
case CalpontSystemCatalog::UTINYINT:
case CalpontSystemCatalog::USMALLINT:
{
ret = (parm[0]->data()->getUintVal(row, isNull));
}
break;
case CalpontSystemCatalog::DOUBLE:
case CalpontSystemCatalog::UDOUBLE:
case CalpontSystemCatalog::FLOAT:
case CalpontSystemCatalog::UFLOAT:
{
ret = (uint64_t) ceil(parm[0]->data()->getDoubleVal(row, isNull));
}
break;
case CalpontSystemCatalog::VARCHAR:
case CalpontSystemCatalog::CHAR:
case CalpontSystemCatalog::TEXT:
{
const string& str = parm[0]->data()->getStrVal(row, isNull);
if (!isNull)
ret = (uint64_t) ceil(strtod(str.c_str(), 0));
}
break;
case CalpontSystemCatalog::DATE:
{
Date d (parm[0]->data()->getDateIntVal(row, isNull));
if (!isNull)
ret = d.convertToMySQLint();
}
break;
case CalpontSystemCatalog::DATETIME:
{
DateTime dt(parm[0]->data()->getDatetimeIntVal(row, isNull));
if (!isNull)
ret = dt.convertToMySQLint();
}
break;
default:
{
std::ostringstream oss;
oss << "ceil: datatype of " << colDataTypeToString(op_ct.colDataType)
<< " is not supported";
throw logging::IDBExcept(oss.str(), ERR_DATATYPE_NOT_SUPPORT);
}
}
return ret;
}
double Func_ceil::getDoubleVal(Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType& op_ct)
{
double ret = 0.0;
if (op_ct.colDataType == CalpontSystemCatalog::DOUBLE ||
op_ct.colDataType == CalpontSystemCatalog::UDOUBLE ||
op_ct.colDataType == CalpontSystemCatalog::FLOAT ||
op_ct.colDataType == CalpontSystemCatalog::UFLOAT)
{
ret = ceil(parm[0]->data()->getDoubleVal(row, isNull));
}
else if (op_ct.colDataType == CalpontSystemCatalog::VARCHAR ||
op_ct.colDataType == CalpontSystemCatalog::CHAR ||
op_ct.colDataType == CalpontSystemCatalog::TEXT)
{
const string& str = parm[0]->data()->getStrVal(row, isNull);
if (!isNull)
ret = ceil(strtod(str.c_str(), 0));
}
else
{
if (isUnsigned(op_ct.colDataType))
{
ret = (double) getUintVal(row, parm, isNull, op_ct);
}
else
{
ret = (double) getIntVal(row, parm, isNull, op_ct);
}
}
return ret;
}
string Func_ceil::getStrVal(Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType& op_ct)
{
char tmp[512] = {'\0'};
if (op_ct.colDataType == CalpontSystemCatalog::DOUBLE ||
op_ct.colDataType == CalpontSystemCatalog::UDOUBLE ||
op_ct.colDataType == CalpontSystemCatalog::FLOAT ||
op_ct.colDataType == CalpontSystemCatalog::UFLOAT ||
op_ct.colDataType == CalpontSystemCatalog::VARCHAR ||
op_ct.colDataType == CalpontSystemCatalog::CHAR ||
op_ct.colDataType == CalpontSystemCatalog::TEXT)
{
snprintf(tmp, 511, "%f", getDoubleVal(row, parm, isNull, op_ct));
// remove the decimals in the oss string.
char* d = tmp;
while ((*d != '.') && (*d != '\0'))
d++;
*d = '\0';
}
else if (isUnsigned(op_ct.colDataType))
{
#ifndef __LP64__
snprintf(tmp, 511, "%llu", getUintVal(row, parm, isNull, op_ct));
#else
snprintf(tmp, 511, "%lu", getUintVal(row, parm, isNull, op_ct));
#endif
}
else
{
#ifndef __LP64__
snprintf(tmp, 511, "%lld", getIntVal(row, parm, isNull, op_ct));
#else
snprintf(tmp, 511, "%ld", getIntVal(row, parm, isNull, op_ct));
#endif
}
return string(tmp);
}
} // namespace funcexp
// vim:ts=4 sw=4:
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