mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-05-31 11:41:14 +03:00
72 lines
1.9 KiB
C++
72 lines
1.9 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: functor_export.h 3495 2013-01-21 14:09:51Z rdempsey $
|
|
|
|
/** @file */
|
|
|
|
#ifndef FUNCTOR_EXPORT_H
|
|
#define FUNCTOR_EXPORT_H
|
|
|
|
|
|
#include "functor.h"
|
|
|
|
|
|
namespace funcexp
|
|
{
|
|
|
|
/** @brief Func_rand class
|
|
* This function is exported, so visible to FunctionColumn in dbcon.
|
|
*/
|
|
class Func_rand : public Func
|
|
{
|
|
public:
|
|
Func_rand() : Func("rand"), fSeed1(0), fSeed2(0), fSeedSet(false){}
|
|
virtual ~Func_rand() {}
|
|
|
|
double getRand();
|
|
void seedSet(bool seedSet) { fSeedSet = seedSet; }
|
|
execplan::CalpontSystemCatalog::ColType operationType(FunctionParm& fp, execplan::CalpontSystemCatalog::ColType& resultType);
|
|
|
|
int64_t getIntVal(rowgroup::Row& row,
|
|
FunctionParm& fp,
|
|
bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct)
|
|
{ return ((int64_t) getDoubleVal(row, fp, isNull, op_ct)); }
|
|
|
|
double getDoubleVal(rowgroup::Row& row,
|
|
FunctionParm& fp,
|
|
bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct);
|
|
|
|
std::string getStrVal(rowgroup::Row& row,
|
|
FunctionParm& fp,
|
|
bool& isNull,
|
|
execplan::CalpontSystemCatalog::ColType& op_ct)
|
|
{ return doubleToString(getDoubleVal(row, fp, isNull, op_ct)); }
|
|
|
|
private:
|
|
uint64_t fSeed1;
|
|
uint64_t fSeed2;
|
|
bool fSeedSet;
|
|
};
|
|
|
|
|
|
}
|
|
|
|
#endif
|