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Create a new 'MultiExecProcNode' call API for plan nodes that don't

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return just a single tuple at a time.  Currently the only such node
type is Hash, but I expect we will soon have indexscans that can return
tuple bitmaps.  A side benefit is that EXPLAIN ANALYZE now shows the
correct tuple count for a Hash node.
This commit is contained in:
Tom Lane
2005-04-16 20:07:35 +00:00
parent 85eee28cec
commit d8b1bf4791
9 changed files with 121 additions and 39 deletions
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3
src/include/executor/executor.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/executor/executor.h,v 1.117 2005/03/16 21:38:09 tgl Exp $
* $PostgreSQL: pgsql/src/include/executor/executor.h,v 1.118 2005/04/16 20:07:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -105,6 +105,7 @@ extern TupleTableSlot *EvalPlanQual(EState *estate, Index rti,
*/
extern PlanState *ExecInitNode(Plan *node, EState *estate);
extern TupleTableSlot *ExecProcNode(PlanState *node);
extern Node *MultiExecProcNode(PlanState *node);
extern int ExecCountSlotsNode(Plan *node);
extern void ExecEndNode(PlanState *node);