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Suppress subquery pullup and pushdown when the subquery has any

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set-returning functions in its target list.  This ensures that we
won't rewrite the query in a way that places set-returning functions
into quals (WHERE clauses).  Cf. bug reports from Joe Conway.
This commit is contained in:
Tom Lane
2001-12-10 22:54:12 +00:00
parent 584f818bef
commit 63cc56de54
4 changed files with 59 additions and 6 deletions
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4
src/include/optimizer/clauses.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: clauses.h,v 1.49 2001/11/05 17:46:34 momjian Exp $
* $Id: clauses.h,v 1.50 2001/12/10 22:54:12 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -42,6 +42,8 @@ extern List *make_ands_implicit(Expr *clause);
extern bool contain_agg_clause(Node *clause);
extern List *pull_agg_clause(Node *clause);
extern bool contain_iter_clause(Node *clause);
extern bool contain_subplans(Node *clause);
extern List *pull_subplans(Node *clause);
extern void check_subplans_for_ungrouped_vars(Query *query);