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Fix Assert failure in PushOverrideSearchPath when trying to restore a search

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path that specifies useTemp, but there is no active temp schema in the
current session.  (This can happen if the path was saved during a transaction
that created a temp schema and was later rolled back.)  For existing callers
it's sufficient to ignore the useTemp flag in this case, though we might
later want to offer an option to create a fresh temp schema.  So far as I can
tell this is just an Assert failure: in a non-assert build, the code would
push a zero onto the new search path, which is useless but not very harmful.
Per bug report from Heikki.

Back-patch to 8.3; prior versions don't have this code.
This commit is contained in:
Tom Lane
2010-08-13 16:27:28 +00:00
parent 86003b80cb
commit dd56a9d6ed
2 changed files with 16 additions and 6 deletions
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4
src/backend/utils/cache/plancache.c vendored
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@ -35,7 +35,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/cache/plancache.c,v 1.27.2.2 2010/01/13 16:57:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/cache/plancache.c,v 1.27.2.3 2010/08/13 16:27:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -470,6 +470,8 @@ RevalidateCachedPlan(CachedPlanSource *plansource, bool useResOwner)
/*
* Restore the search_path that was in use when the plan was made.
* See comments for PushOverrideSearchPath about limitations of this.
*
* (XXX is there anything else we really need to restore?)
*/
PushOverrideSearchPath(plansource->search_path);