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53b9a2a0f9
The idea is relatively simple - encode prefixes of collated strings as integers and use them to compute extents' ranges. Then we can eliminate extents with strings. The actual patch does have all the code there but miss one important step: we do not keep collation index, we keep charset index. Because of this, some of the tests in the bugfix suite fail and thus main functionality is turned off. The reason of this patch to be put into PR at all is that it contains changes that made CHAR/VARCHAR columns unsigned. This change is needed in vectorization work.
118 lines
2.5 KiB
C++
118 lines
2.5 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/** @file */
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#pragma once
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#include <string>
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#include <boost/uuid/uuid.hpp>
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#include "serializeable.h"
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#include "bytestream.h"
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namespace joblist
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{
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class BatchPrimitiveProcessorJL;
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class CommandJL
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{
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public:
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CommandJL();
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CommandJL(const CommandJL&);
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virtual ~CommandJL();
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// converts a rid or dictionary token to an LBID. For ColumnCommandJL it's a RID,
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// for a DictStep it's a token.
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virtual void setLBID(uint64_t data, uint32_t dbroot) = 0;
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virtual uint8_t getTableColumnType() = 0;
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virtual std::string toString() = 0;
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virtual void createCommand(messageqcpp::ByteStream&) const;
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virtual void runCommand(messageqcpp::ByteStream&) const = 0;
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uint32_t getOID() const
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{
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return OID;
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}
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const std::string& getColName() const
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{
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return colName;
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}
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void setTupleKey(uint32_t tkey)
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{
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tupleKey = tkey;
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}
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uint32_t getTupleKey() const
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{
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return tupleKey;
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}
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virtual uint16_t getWidth() = 0;
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const boost::uuids::uuid& getQueryUuid() const
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{
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return queryUuid;
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}
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void setQueryUuid(const boost::uuids::uuid& u)
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{
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queryUuid = u;
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}
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const boost::uuids::uuid& getStepUuid() const
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{
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return stepUuid;
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}
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void setStepUuid(const boost::uuids::uuid& u)
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{
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stepUuid = u;
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}
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void setBatchPrimitiveProcessor(BatchPrimitiveProcessorJL* b)
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{
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bpp = b;
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}
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enum CommandType
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{
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NONE,
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COLUMN_COMMAND,
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DICT_STEP,
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DICT_SCAN,
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PASS_THRU,
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RID_TO_STRING,
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FILTER_COMMAND,
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PSEUDO_COLUMN
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};
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virtual CommandType getCommandType() = 0;
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virtual bool getIsDict()
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{
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return false;
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}
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protected:
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BatchPrimitiveProcessorJL* bpp;
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uint32_t OID;
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uint32_t tupleKey;
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std::string colName; // for stats
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boost::uuids::uuid queryUuid;
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boost::uuids::uuid stepUuid;
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private:
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};
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typedef boost::shared_ptr<CommandJL> SCommand;
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} // namespace joblist
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