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mariadb-columnstore-engine/dbcon/dmlpackage/dmltable.h
Gagan Goel d4d0ebdf5d Improve batch inserts.
1) Instead of making dbrm calls to writeVBEntry() per block,
     we make these calls per batch. This can have non-trivial
     reductions in the overhead of these calls if the batch size
     is large.

  2) In dmlproc, do not deserialize the whole insertpackage, which
     consists of the complete record set per column, which would be
     wasteful as we only need some metadata fields from insertpackage
     here. This is only done for batch inserts at the moment, this
     should also be applied to single inserts.
2020-05-10 19:38:06 -04:00

130 lines
2.9 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: dmltable.h 9210 2013-01-21 14:10:42Z rdempsey $
*
*
***********************************************************************/
/** @file */
#ifndef DMLTABLE_H
#define DMLTABLE_H
#include <string>
#include <vector>
#include "dmlobject.h"
#include "bytestream.h"
#include "row.h"
namespace dmlpackage
{
/** @brief concrete implementation of a DMLObject
* Specifically for representing a database table
*/
class DMLTable : public DMLObject
{
public:
/** @brief ctor
*/
DMLTable();
/** @brief dtor
*/
~DMLTable();
/** @brief get the schema name
*/
inline const std::string get_SchemaName() const
{
return fSchema;
}
/** @brief set the schema name
*/
inline void set_SchemaName( std::string& sName )
{
fSchema = sName;
}
/** @brief get the table name
*/
inline const std::string get_TableName() const
{
return fName;
}
/** @brief set the table name
*/
inline void set_TableName( std::string& tName )
{
fName = tName;
}
/** @brief get the row list
*/
inline RowList& get_RowList()
{
return fRows;
}
/** @brief read a DMLTable from a ByteStream
*
* @param bytestream the ByteStream to read from
*/
int read(messageqcpp::ByteStream& bytestream);
/** @brief read a DMLTable metadata from a ByteStream
*
* @param bytestream the ByteStream to read from
*/
void readMetaData(messageqcpp::ByteStream& bytestream);
/** @brief read a DMLTable row data from a ByteStream
*
* @param bytestream the ByteStream to read from
*/
void readRowData(messageqcpp::ByteStream& bytestream);
/** @brief write a DMLTable to a ByteStream
*
* @param bytestream the ByteStream to write to
*/
int write(messageqcpp::ByteStream& bytestream);
protected:
private:
std::string fName;
RowList fRows;
std::string fSchema;
/*Copy and copy assignment constructor */
DMLTable(const DMLTable&);
DMLTable& operator=(const DMLTable&);
};
} // namespace dmlpackage
#endif //DMLTABLE_H