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Add support for FUNCTION RTEs to build_physical_tlist(), so that the

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physical-tlist optimization can be applied to FunctionScan nodes as well
as regular tables and SubqueryScans.
This commit is contained in:
Tom Lane
2005-05-30 18:55:49 +00:00
parent 3e8dbc846c
commit ac25dbd84b
2 changed files with 43 additions and 8 deletions
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14
src/backend/optimizer/plan/createplan.c
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@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.189 2005/05/22 22:30:19 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.190 2005/05/30 18:55:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -308,13 +308,17 @@ use_physical_tlist(RelOptInfo *rel)
int i;
/*
* OK for subquery scans, but not function scans. (This is mainly
* because build_physical_tlist doesn't support them; worth adding?)
* OK for subquery and function scans; otherwise, can't do it for
* anything except real relations.
*/
if (rel->rtekind == RTE_SUBQUERY)
return true;
if (rel->rtekind != RTE_RELATION)
{
if (rel->rtekind == RTE_SUBQUERY)
return true;
if (rel->rtekind == RTE_FUNCTION)
return true;
return false;
}
/*
* Can't do it with inheritance cases either (mainly because Append