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/*-------------------------------------------------------------------- * execParallel.h * POSTGRES parallel execution interface * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION * src/include/executor/execParallel.h *-------------------------------------------------------------------- */ #ifndef EXECPARALLEL_H #define EXECPARALLEL_H #include "access/parallel.h" #include "nodes/execnodes.h" #include "nodes/parsenodes.h" #include "nodes/plannodes.h" typedef struct SharedExecutorInstrumentation SharedExecutorInstrumentation; typedef struct ParallelExecutorInfo { PlanState *planstate; ParallelContext *pcxt; BufferUsage *buffer_usage; SharedExecutorInstrumentation *instrumentation; shm_mq_handle **tqueue; bool finished; } ParallelExecutorInfo; extern ParallelExecutorInfo *ExecInitParallelPlan(PlanState *planstate, EState *estate, int nworkers); extern void ExecParallelFinish(ParallelExecutorInfo *pei); extern void ExecParallelCleanup(ParallelExecutorInfo *pei); extern void ExecParallelReinitialize(ParallelExecutorInfo *pei); extern void ParallelQueryMain(dsm_segment *seg, shm_toc *toc); #endif /* EXECPARALLEL_H */