You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-11-03 17:13:17 +03:00
89 lines
3.1 KiB
C++
89 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: we_columninfocompressed.h 4450 2013-01-21 14:13:24Z rdempsey $
|
|
*
|
|
*******************************************************************************/
|
|
|
|
/** @file
|
|
* Contains main class used to manage compressed column information.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "we_columninfo.h"
|
|
#include "we_fileop.h"
|
|
|
|
#include "idbcompress.h"
|
|
|
|
#include <vector>
|
|
|
|
namespace WriteEngine
|
|
{
|
|
class RBMetaWriter;
|
|
|
|
/** @brief Maintains information about a DB column.
|
|
*/
|
|
class ColumnInfoCompressed : public ColumnInfo
|
|
{
|
|
public:
|
|
/** @brief Constructor.
|
|
*/
|
|
ColumnInfoCompressed(Log* logger, int id, const JobColumn& column, DBRootExtentTracker* pDBRootExtTrk,
|
|
TableInfo* pTableInfo);
|
|
// RBMetaWriter* rbMetaWriter);
|
|
|
|
/** @brief Destructor
|
|
*/
|
|
~ColumnInfoCompressed() override;
|
|
|
|
/** @brief Close the current Column file.
|
|
* @param bCompletedExtent are we completing an extent
|
|
* @param bAbort indicates if job is aborting and file should be
|
|
* closed without doing extra work: flushing buffer, etc.
|
|
*/
|
|
int closeColumnFile(bool bCompletingExtent, bool bAbort) override;
|
|
|
|
/** @brief Truncate specified dictionary file. Only applies if compressed.
|
|
* @param dctnryOid Dictionary store OID
|
|
* @param root DBRoot of relevant dictionary store segment file.
|
|
* @param pNum Partition number of relevant dictionary store segment file.
|
|
* @param sNum Segment number of relevant dictionary store segment file.
|
|
*/
|
|
int truncateDctnryStore(OID dctnryOid, uint16_t root, uint32_t pNum, uint16_t sNum) const override;
|
|
|
|
private:
|
|
int resetFileOffsetsNewExtent(const char* hdr) override;
|
|
|
|
// Prepare initial compressed column seg file for importing of data.
|
|
// oldHWM - Current HWM prior to initial block skipping. This is only
|
|
// used for abbreviated extents, to detect when block skipping has
|
|
// caused us to require a full expanded extent.
|
|
// newHWM - Starting point for adding data after initial blockskipping
|
|
int setupInitialColumnFile(HWM oldHWM, HWM newHWM) override;
|
|
|
|
int saveDctnryStoreHWMChunk(bool& needBackup) override;
|
|
int extendColumnOldExtent(uint16_t dbRootNext, uint32_t partitionNext, uint16_t segmentNext,
|
|
HWM hwmNext) override;
|
|
|
|
RBMetaWriter* fRBMetaWriter;
|
|
FileOp fTruncateDctnryFileOp; // Used to truncate dctnry store file
|
|
};
|
|
|
|
} // namespace WriteEngine
|