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3b1117d6e2
Adds support for EXPLAIN (IO) instrumentation for sequential scans. This
requires adding shared instrumentation, using the separate DSM approach
introduced by dd78e69cfc.
Author: Tomas Vondra <tomas@vondra.me>
Reviewed-by: Melanie Plageman <melanieplageman@gmail.com>
Reviewed-by: Lukas Fittl <lukas@fittl.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/flat/a177a6dd-240b-455a-8f25-aca0b1c08c6e%40vondra.me
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* nodeSeqscan.h
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*
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*
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*
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* Portions Copyright (c) 1996-2026, 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/nodeSeqscan.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODESEQSCAN_H
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#define NODESEQSCAN_H
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#include "access/parallel.h"
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#include "nodes/execnodes.h"
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extern SeqScanState *ExecInitSeqScan(SeqScan *node, EState *estate, int eflags);
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extern void ExecEndSeqScan(SeqScanState *node);
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extern void ExecReScanSeqScan(SeqScanState *node);
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/* parallel scan support */
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extern void ExecSeqScanEstimate(SeqScanState *node, ParallelContext *pcxt);
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extern void ExecSeqScanInitializeDSM(SeqScanState *node, ParallelContext *pcxt);
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extern void ExecSeqScanReInitializeDSM(SeqScanState *node, ParallelContext *pcxt);
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extern void ExecSeqScanInitializeWorker(SeqScanState *node,
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ParallelWorkerContext *pwcxt);
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/* instrument support */
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extern void ExecSeqScanInstrumentEstimate(SeqScanState *node,
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ParallelContext *pcxt);
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extern void ExecSeqScanInstrumentInitDSM(SeqScanState *node,
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ParallelContext *pcxt);
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extern void ExecSeqScanInstrumentInitWorker(SeqScanState *node,
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ParallelWorkerContext *pwcxt);
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extern void ExecSeqScanRetrieveInstrumentation(SeqScanState *node);
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#endif /* NODESEQSCAN_H */
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