Viewing file:  execParallel.h (1.25 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*--------------------------------------------------------------------
* 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 */
|