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69d34408e5
This patch doesn't put the new infrastructure to use anywhere, and indeed it's not clear how it could ever be used for something like postgres_fdw which has to send an SQL query and wait for a reply, but there might be FDWs or custom scan providers that are CPU-bound, so let's give them a way to join club parallel. KaiGai Kohei, reviewed by me.
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* nodeForeignscan.h
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*
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*
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*
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* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/executor/nodeForeignscan.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEFOREIGNSCAN_H
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#define NODEFOREIGNSCAN_H
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#include "access/parallel.h"
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#include "nodes/execnodes.h"
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extern ForeignScanState *ExecInitForeignScan(ForeignScan *node, EState *estate, int eflags);
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extern TupleTableSlot *ExecForeignScan(ForeignScanState *node);
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extern void ExecEndForeignScan(ForeignScanState *node);
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extern void ExecReScanForeignScan(ForeignScanState *node);
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extern void ExecForeignScanEstimate(ForeignScanState *node,
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ParallelContext *pcxt);
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extern void ExecForeignScanInitializeDSM(ForeignScanState *node,
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ParallelContext *pcxt);
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extern void ExecForeignScanInitializeWorker(ForeignScanState *node,
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shm_toc *toc);
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#endif /* NODEFOREIGNSCAN_H */
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