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Modify optimizer data structures so that IndexOptInfo lists built for

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create_index_paths are not immediately discarded, but are available for
subsequent planner work.  This allows avoiding redundant syscache lookups
in several places.  Change interface to operator selectivity estimation
procedures to allow faster and more flexible estimation.
Initdb forced due to change of pg_proc entries for selectivity functions!
This commit is contained in:
Tom Lane
2001-05-20 20:28:20 +00:00
parent 5d53389cfe
commit be03eb25f3
32 changed files with 1147 additions and 1218 deletions
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4
src/include/optimizer/paths.h
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: paths.h,v 1.52 2001/03/22 04:00:54 momjian Exp $
* $Id: paths.h,v 1.53 2001/05/20 20:28:20 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -35,7 +35,7 @@ extern RelOptInfo *make_fromexpr_rel(Query *root, FromExpr *from);
* indxpath.c
* routines to generate index paths
*/
extern void create_index_paths(Query *root, RelOptInfo *rel, List *indices);
extern void create_index_paths(Query *root, RelOptInfo *rel);
extern Oid indexable_operator(Expr *clause, Oid opclass, Oid relam,
bool indexkey_on_left);
extern List *extract_or_indexqual_conditions(RelOptInfo *rel,