mariadb-columnstore-engine/dbcon/joblist/columncommand-jl.h

/* 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 */

#pragma once

#include "primitivestep.h"
#include "command-jl.h"
#include "dictstep-jl.h"

namespace joblist
{
class ColumnCommandJL : public CommandJL
{
 public:
  ColumnCommandJL(const pColScanStep&, std::vector<BRM::LBID_t> lastLBID, bool hasAuxCol_,
                  const std::vector<BRM::EMEntry>& extentsAux_, execplan::CalpontSystemCatalog::OID oidAux);
  explicit ColumnCommandJL(const pColStep&);
  ColumnCommandJL(const ColumnCommandJL&, const DictStepJL&);
  ~ColumnCommandJL() override;

  void createCommand(messageqcpp::ByteStream& bs) const override;
  void runCommand(messageqcpp::ByteStream& bs) const override;
  void setLBID(uint64_t rid, uint32_t dbroot) override;
  uint8_t getTableColumnType() override;
  std::string toString() override;
  uint16_t getWidth() override;
  CommandType getCommandType() override
  {
    return COLUMN_COMMAND;
  }
  // @bug 1098
  uint8_t getBOP() const
  {
    return BOP;
  }
  const messageqcpp::ByteStream& getFilterString()
  {
    return filterString;
  }
  uint16_t getFilterCount() const
  {
    return filterCount;
  }
  const std::vector<struct BRM::EMEntry>& getExtents()
  {
    return extents;
  }
  const std::vector<struct BRM::EMEntry>& getExtentsAux()
  {
    return extentsAux;
  }
  const execplan::CalpontSystemCatalog::ColType& getColType() const
  {
    return colType;
  }
  bool isDict() const
  {
    return fIsDict;
  }

  void scan(bool b)
  {
    isScan = b;
  }
  bool scan()
  {
    return isScan;
  }
  bool auxCol() const
  {
    return hasAuxCol;
  }

  execplan::CalpontSystemCatalog::OID getOIDAux() const
  {
    return fOidAux;
  }

  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;
  bool fContainsRanges = false;

  // @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;

  std::vector<struct BRM::EMEntry> extentsAux;
  bool hasAuxCol;
  uint64_t lbidAux;
  execplan::CalpontSystemCatalog::OID fOidAux;

  static const unsigned DEFAULT_FILES_PER_COLUMN_PARTITION = 32;

 public:
  // MCOL-4685: remove the option to set more than 2 extents per file (ExtentsPreSegmentFile)
  static const unsigned DEFAULT_EXTENTS_PER_SEGMENT_FILE = 2;
  bool getIsDict() override;
};

}  // namespace joblist