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Don't try to constant-fold functions returning RECORD, since the optimizer

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isn't presently set up to pass them an expected tuple descriptor.  Bug has
been there since 7.3 but was just recently reported by Thomas Hallgren.
This commit is contained in:
Tom Lane 2005-04-14 21:44:22 +00:00
parent c61d1c95ea
commit 59974b0e0a
1 changed files with 8 additions and 1 deletions
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9
src/backend/optimizer/util/clauses.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.186.4.3 2005/04/10 20:57:45 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.186.4.4 2005/04/14 21:44:22 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -2043,6 +2043,13 @@ evaluate_function(Oid funcid, Oid result_type, List *args,
if (funcform->proretset)
return NULL;
/*
* Can't simplify if it returns RECORD, since it will be needing an
* expected tupdesc which we can't supply here.
*/
if (funcform->prorettype == RECORDOID)
return NULL;
/*
* Check for constant inputs and especially constant-NULL inputs.
*/