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mariadb-columnstore-engine/dbcon/joblist/columncommand-jl.h
2017-10-26 17:18:17 +01:00

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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: columncommand-jl.h 9655 2013-06-25 23:08:13Z xlou $
// C++ Interface: columncommand
//
// Description:
//
//
// Author: Patrick LeBlanc <pleblanc@calpont.com>, (C) 2008
//
// Copyright: See COPYING file that comes with this distribution
//
//
/** @file */
#ifndef COLUMNCOMMANDJL_H_
#define COLUMNCOMMANDJL_H_
#include "primitivestep.h"
#include "command-jl.h"
namespace joblist
{
class ColumnCommandJL : public CommandJL
{
public:
ColumnCommandJL(const pColScanStep&, std::vector<BRM::LBID_t> lastLBID);
ColumnCommandJL(const pColStep&);
virtual ~ColumnCommandJL();
virtual void createCommand(messageqcpp::ByteStream& bs) const;
virtual void runCommand(messageqcpp::ByteStream& bs) const;
void setLBID(uint64_t rid, uint32_t dbroot);
uint8_t getTableColumnType();
virtual std::string toString();
uint16_t getWidth();
CommandType getCommandType()
{
return COLUMN_COMMAND;
}
// @bug 1098
const uint8_t getBOP() const
{
return BOP;
}
const messageqcpp::ByteStream& getFilterString()
{
return filterString;
}
const uint16_t getFilterCount() const
{
return filterCount;
}
const std::vector<struct BRM::EMEntry>& getExtents()
{
return extents;
}
const execplan::CalpontSystemCatalog::ColType& getColType() const
{
return colType;
}
bool isDict() const
{
return fIsDict;
}
void scan(bool b)
{
isScan = b;
}
bool scan()
{
return isScan;
}
void reloadExtents();
protected:
uint32_t currentExtentIndex;
messageqcpp::ByteStream filterString;
std::vector<struct BRM::EMEntry> extents;
execplan::CalpontSystemCatalog::ColType colType;
private:
ColumnCommandJL();
ColumnCommandJL(const ColumnCommandJL&);
uint32_t getFBO(uint64_t lbid);
bool isScan;
uint64_t lbid;
uint32_t traceFlags; // probably move this to Command
uint8_t BOP;
uint32_t rpbShift, divShift, modMask;
uint16_t filterCount;
std::vector<BRM::LBID_t> fLastLbid;
bool fIsDict;
// @Bug 2889. Added two members below for drop partition enhancement.
// RJD: make sure that we keep enough significant digits around for partition math
uint64_t fFilesPerColumnPartition;
uint64_t fExtentsPerSegmentFile;
uint32_t numDBRoots;
uint32_t dbroot;
static const unsigned DEFAULT_FILES_PER_COLUMN_PARTITION = 32;
static const unsigned DEFAULT_EXTENTS_PER_SEGMENT_FILE = 4;
};
}
#endif
// vim:ts=4 sw=4: