mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
/*
|
|
Copyright (c) 2017, MariaDB
|
|
|
|
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.
|
|
*/
|
|
|
|
#pragma once
|
|
#include <string>
|
|
|
|
#include "calpontselectexecutionplan.h"
|
|
#include "aggregatecolumn.h"
|
|
#include "mcsv1_udaf.h"
|
|
|
|
namespace messageqcpp
|
|
{
|
|
class ByteStream;
|
|
}
|
|
|
|
/**
|
|
* Namespace
|
|
*/
|
|
namespace execplan
|
|
{
|
|
/**
|
|
* @brief A class to represent an aggregate return column
|
|
*
|
|
* This class is a specialization of class ReturnedColumn that
|
|
* handles a user defined aggregate function (UDAF) call.
|
|
*/
|
|
class UDAFColumn : public AggregateColumn
|
|
{
|
|
public:
|
|
/**
|
|
* Constructors
|
|
*/
|
|
UDAFColumn();
|
|
|
|
explicit UDAFColumn(const uint32_t sessionID);
|
|
|
|
UDAFColumn(const UDAFColumn& rhs, const uint32_t sessionID = 0);
|
|
|
|
/**
|
|
* Destructors
|
|
*/
|
|
~UDAFColumn() override;
|
|
|
|
/**
|
|
* Overloaded stream operator
|
|
*/
|
|
const std::string toString() const override;
|
|
|
|
/** return a copy of this pointer
|
|
*
|
|
* deep copy of this pointer and return the copy
|
|
*/
|
|
UDAFColumn* clone() const override
|
|
{
|
|
return new UDAFColumn(*this);
|
|
}
|
|
|
|
/**
|
|
* Accessors and Mutators
|
|
*/
|
|
mcsv1sdk::mcsv1Context& getContext()
|
|
{
|
|
return context;
|
|
}
|
|
|
|
/**
|
|
* Serialize interface
|
|
*/
|
|
void serialize(messageqcpp::ByteStream&) const override;
|
|
void unserialize(messageqcpp::ByteStream&) override;
|
|
|
|
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
|
*
|
|
* Do a deep, strict (as opposed to semantic) equivalence test.
|
|
* @return true iff every member of t is a duplicate copy of every member of this;
|
|
* false otherwise
|
|
*/
|
|
bool operator==(const TreeNode* t) const override;
|
|
|
|
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
|
*
|
|
* Do a deep, strict (as opposed to semantic) equivalence test.
|
|
* @return true iff every member of t is a duplicate copy of every member of this;
|
|
* false otherwise
|
|
*/
|
|
using AggregateColumn::operator==;
|
|
virtual bool operator==(const UDAFColumn& t) const;
|
|
|
|
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
|
*
|
|
* Do a deep, strict (as opposed to semantic) equivalence test.
|
|
* @return false iff every member of t is a duplicate copy of every member of this;
|
|
* true otherwise
|
|
*/
|
|
bool operator!=(const TreeNode* t) const override;
|
|
|
|
/** @brief Do a deep, strict (as opposed to semantic) equivalence test
|
|
*
|
|
* Do a deep, strict (as opposed to semantic) equivalence test.
|
|
* @return false iff every member of t is a duplicate copy of every member of this;
|
|
* true otherwise
|
|
*/
|
|
using AggregateColumn::operator!=;
|
|
virtual bool operator!=(const UDAFColumn& t) const;
|
|
|
|
std::string toCppCode(IncludeSet& includes) const override;
|
|
|
|
private:
|
|
mcsv1sdk::mcsv1Context context;
|
|
};
|
|
|
|
/**
|
|
* stream operator
|
|
*/
|
|
std::ostream& operator<<(std::ostream& os, const UDAFColumn& rhs);
|
|
|
|
} // namespace execplan
|