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53e757689c
relation using the general PARAM_EXEC executor parameter mechanism, rather than the ad-hoc kluge of passing the outer tuple down through ExecReScan. The previous method was hard to understand and could never be extended to handle parameters coming from multiple join levels. This patch doesn't change the set of possible plans nor have any significant performance effect, but it's necessary infrastructure for future generalization of the concept of an inner indexscan plan. ExecReScan's second parameter is now unused, so it's removed.
25 lines
854 B
C
25 lines
854 B
C
/*-------------------------------------------------------------------------
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*
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* nodeWorktablescan.h
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*
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*
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*
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* Portions Copyright (c) 1996-2010, 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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* $PostgreSQL: pgsql/src/include/executor/nodeWorktablescan.h,v 1.5 2010/07/12 17:01:06 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEWORKTABLESCAN_H
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#define NODEWORKTABLESCAN_H
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#include "nodes/execnodes.h"
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extern WorkTableScanState *ExecInitWorkTableScan(WorkTableScan *node, EState *estate, int eflags);
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extern TupleTableSlot *ExecWorkTableScan(WorkTableScanState *node);
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extern void ExecEndWorkTableScan(WorkTableScanState *node);
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extern void ExecReScanWorkTableScan(WorkTableScanState *node);
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#endif /* NODEWORKTABLESCAN_H */
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