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Make use of plancache module for SPI plans. In particular, since plpgsql

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uses SPI plans, this finally fixes the ancient gotcha that you can't
drop and recreate a temp table used by a plpgsql function.

Along the way, clean up SPI's API a little bit by declaring SPI plan
pointers as "SPIPlanPtr" instead of "void *".  This is cosmetic but
helps to forestall simple programming mistakes.  (I have changed some
but not all of the callers to match; there are still some "void *"'s
in contrib and the PL's.  This is intentional so that we can see if
anyone's compiler complains about it.)
This commit is contained in:
Tom Lane
2007-03-15 23:12:07 +00:00
parent d3ff180163
commit 95f6d2d209
16 changed files with 654 additions and 285 deletions
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3
src/include/utils/plancache.h
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/plancache.h,v 1.1 2007/03/13 00:33:43 tgl Exp $
* $PostgreSQL: pgsql/src/include/utils/plancache.h,v 1.2 2007/03/15 23:12:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -101,5 +101,6 @@ extern void DropCachedPlan(CachedPlanSource *plansource);
extern CachedPlan *RevalidateCachedPlan(CachedPlanSource *plansource,
bool useResOwner);
extern void ReleaseCachedPlan(CachedPlan *plan, bool useResOwner);
extern TupleDesc PlanCacheComputeResultDesc(List *stmt_list);
#endif /* PLANCACHE_H */