From 4bdb4be62e652ee3220dae21a4fa340832c93429 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Fri, 5 Apr 2002 00:31:36 +0000 Subject: Divide functions into three volatility classes (immutable, stable, and volatile), rather than the old cachable/noncachable distinction. This allows indexscan optimizations in many places where we formerly didn't. Also, add a pronamespace column to pg_proc (it doesn't do anything yet, however). --- src/include/optimizer/clauses.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'src/include/optimizer') diff --git a/src/include/optimizer/clauses.h b/src/include/optimizer/clauses.h index 4cbaf762ca..69596c1779 100644 --- a/src/include/optimizer/clauses.h +++ b/src/include/optimizer/clauses.h @@ -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 1.50 2001/12/10 22:54:12 tgl Exp $ + * $Id: clauses.h,v 1.51 2002/04/05 00:31:35 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -48,7 +48,8 @@ extern bool contain_subplans(Node *clause); extern List *pull_subplans(Node *clause); extern void check_subplans_for_ungrouped_vars(Query *query); -extern bool contain_noncachable_functions(Node *clause); +extern bool contain_mutable_functions(Node *clause); +extern bool contain_volatile_functions(Node *clause); extern bool is_pseudo_constant_clause(Node *clause); extern List *pull_constant_clauses(List *quals, List **constantQual); -- cgit v1.2.1