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4a8c5d0375
scans, using in-memory tuple ID bitmaps as the intermediary. The planner frontend (path creation and cost estimation) is not there yet, so none of this code can be executed. I have tested it using some hacked planner code that is far too ugly to see the light of day, however. Committing now so that the bulk of the infrastructure changes go in before the tree drifts under me.
28 lines
964 B
C
28 lines
964 B
C
/*-------------------------------------------------------------------------
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*
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* nodeIndexscan.h
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*
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*
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*
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* Portions Copyright (c) 1996-2005, 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/nodeIndexscan.h,v 1.22 2005/04/19 22:35:17 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEINDEXSCAN_H
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#define NODEINDEXSCAN_H
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#include "nodes/execnodes.h"
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extern int ExecCountSlotsIndexScan(IndexScan *node);
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extern IndexScanState *ExecInitIndexScan(IndexScan *node, EState *estate);
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extern TupleTableSlot *ExecIndexScan(IndexScanState *node);
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extern void ExecEndIndexScan(IndexScanState *node);
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extern void ExecIndexMarkPos(IndexScanState *node);
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extern void ExecIndexRestrPos(IndexScanState *node);
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extern void ExecIndexReScan(IndexScanState *node, ExprContext *exprCtxt);
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#endif /* NODEINDEXSCAN_H */
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