114 lines
2.7 KiB
C++
114 lines
2.7 KiB
C++
/*
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* Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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*
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* openGauss is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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*
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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* ---------------------------------------------------------------------------------------
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*
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* vecnestloop.h
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*
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*
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* IDENTIFICATION
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* src/include/vecexecutor/vecnestloop.h
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*
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* ---------------------------------------------------------------------------------------
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*/
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#ifndef VECNESTLOOP_H
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#define VECNESTLOOP_H
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#include "vecexecutor/vecnodes.h"
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extern VectorBatch* ExecVecNestloop(VecNestLoopState* node);
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extern VecNestLoopState* ExecInitVecNestLoop(VecNestLoop* node, EState* estate, int eflags);
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extern void ExecEndVecNestLoop(VecNestLoopState* node);
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extern void ExecReScanVecNestLoop(VecNestLoopState* node);
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#define NL_NEEDNEWOUTER 1
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#define NL_NEEDNEXTOUTROW 2
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#define NL_EXECQUAL 3
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#define NL_END 4
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class VecNestLoopRuntime : public BaseObject {
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public:
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VecNestLoopRuntime(VecNestLoopState* runtime);
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template <bool ifReturnNotFull>
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VectorBatch* JoinT();
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void Rescan();
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/* To avoid Coverity Warning: missing_user_dtor */
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virtual ~VecNestLoopRuntime();
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private:
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template <bool ifTargetlistNull>
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void FetchOuterT();
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void NextOuterRow();
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void OutJoinBatchAlignInnerJoinBatch(int rows);
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template <JoinType type, bool doProject, bool hasJoinQual, bool hasOtherQual>
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VectorBatch* JoinQualT();
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template <JoinType type>
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void InitT(List* joinqual, List* otherqual, ProjectionInfo* projInfo);
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void BindingFp();
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VectorBatch* (VecNestLoopRuntime::*WrapperBatch)(VectorBatch* batch);
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VectorBatch* (VecNestLoopRuntime::*JoinOnQual)();
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void (VecNestLoopRuntime::*FetchOuter)();
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private:
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VecNestLoopState* m_runtime;
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// runtime status
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//
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int m_status;
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// a batch with 1 null row, for left/anti join
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//
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VectorBatch* m_innerNullBatch;
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// outer batch
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//
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VectorBatch* m_outerBatch;
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// 1 row from outer batch, but we set for a batch max size
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//
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VectorBatch* m_outJoinBatch;
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int m_outReadIdx;
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JoinType m_joinType;
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bool m_matched;
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VectorBatch* m_currentBatch;
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VectorBatch* m_bckBatch;
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int m_bufferRows;
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bool m_SimpletargetCol;
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bool m_outerTargetIsNull;
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int m_outJoinBatchRows;
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};
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#endif
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