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Repair oversight in 8.2 change that improved the handling of "pseudoconstant"

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WHERE clauses.  createplan.c is now willing to stick a gating Result node
almost anywhere in the plan tree, and in particular one can wind up directly
underneath a MergeJoin node.  This means it had better be willing to handle
Mark/Restore.  Fortunately, that's trivial in such cases, since we can just
pass off the call to the input node (which the planner has previously ensured
can handle Mark/Restore).  Per report from Phil Frost.
This commit is contained in:
Tom Lane
2007-02-15 03:07:13 +00:00
parent d19da98a7f
commit bfe553fb49
3 changed files with 55 additions and 5 deletions
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4
src/include/executor/nodeResult.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/executor/nodeResult.h,v 1.23 2007/01/05 22:19:54 momjian Exp $
* $PostgreSQL: pgsql/src/include/executor/nodeResult.h,v 1.24 2007/02/15 03:07:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -20,6 +20,8 @@ extern int ExecCountSlotsResult(Result *node);
extern ResultState *ExecInitResult(Result *node, EState *estate, int eflags);
extern TupleTableSlot *ExecResult(ResultState *node);
extern void ExecEndResult(ResultState *node);
extern void ExecResultMarkPos(ResultState *node);
extern void ExecResultRestrPos(ResultState *node);
extern void ExecReScanResult(ResultState *node, ExprContext *exprCtxt);
#endif /* NODERESULT_H */