diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 1999-08-09 00:51:26 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 1999-08-09 00:51:26 +0000 |
| commit | 6bc601b6482f3d71701a40a6b19cbb2e380f297c (patch) | |
| tree | b6c0575dc68e88d195167f0eca771c58c1cd0d8e /src/include/optimizer/clauses.h | |
| parent | f0b651ac6b5551cced05d5653807c821fbdda3cd (diff) | |
| download | postgresql-6bc601b6482f3d71701a40a6b19cbb2e380f297c.tar.gz | |
Create a standardized expression_tree_mutator support routine
to go along with expression_tree_walker. (_walker is not suitable for
routines that need to alter the tree structure significantly.) Other minor
cleanups in clauses.c.
Diffstat (limited to 'src/include/optimizer/clauses.h')
| -rw-r--r-- | src/include/optimizer/clauses.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/include/optimizer/clauses.h b/src/include/optimizer/clauses.h index ad6976760a..9fa4ff245c 100644 --- a/src/include/optimizer/clauses.h +++ b/src/include/optimizer/clauses.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: clauses.h,v 1.24 1999/07/27 03:51:00 tgl Exp $ + * $Id: clauses.h,v 1.25 1999/08/09 00:51:23 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -44,7 +44,6 @@ extern void clause_get_relids_vars(Node *clause, Relids *relids, List **vars); extern int NumRelids(Node *clause); extern bool is_joinable(Node *clause); extern bool qual_clause_p(Node *clause); -extern void fix_opid(Node *clause); extern List *fix_opids(List *clauses); extern void get_relattval(Node *clause, int targetrelid, int *relid, AttrNumber *attno, @@ -55,6 +54,8 @@ extern void CommuteClause(Node *clause); extern bool expression_tree_walker(Node *node, bool (*walker) (), void *context); +extern Node *expression_tree_mutator(Node *node, Node * (*mutator) (), + void *context); #define is_subplan(clause) ((Node*) (clause) != NULL && \ nodeTag((Node*) (clause)) == T_Expr && \ |