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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-21 16:36:06 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-21 16:36:06 +0000 |
| commit | f933766ba7c5446a28d714904ae0c46d8b21b86a (patch) | |
| tree | 81c8ecd2a2f8161d91670f5325331ba1704c2ab7 /src/include/optimizer/paths.h | |
| parent | c2d156691292d7be998eacf5b99dce3ea3c29ab2 (diff) | |
| download | postgresql-f933766ba7c5446a28d714904ae0c46d8b21b86a.tar.gz | |
Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in
pgsql-hackers. pg_opclass now has a row for each opclass supported by each
index AM, not a row for each opclass name. This allows pg_opclass to show
directly whether an AM supports an opclass, and furthermore makes it possible
to store additional information about an opclass that might be AM-dependent.
pg_opclass and pg_amop now store "lossy" and "haskeytype" information that we
previously expected the user to remember to provide in CREATE INDEX commands.
Lossiness is no longer an index-level property, but is associated with the
use of a particular operator in a particular index opclass.
Along the way, IndexSupportInitialize now uses the syscaches to retrieve
pg_amop and pg_amproc entries. I find this reduces backend launch time by
about ten percent, at the cost of a couple more special cases in catcache.c's
IndexScanOK.
Initial work by Oleg Bartunov and Teodor Sigaev, further hacking by Tom Lane.
initdb forced.
Diffstat (limited to 'src/include/optimizer/paths.h')
| -rw-r--r-- | src/include/optimizer/paths.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h index f676e61d1f..08fe2ccd77 100644 --- a/src/include/optimizer/paths.h +++ b/src/include/optimizer/paths.h @@ -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 1.54 2001/06/05 17:13:51 tgl Exp $ + * $Id: paths.h,v 1.55 2001/08/21 16:36:06 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -36,8 +36,8 @@ extern RelOptInfo *make_fromexpr_rel(Query *root, FromExpr *from); * routines to generate index paths */ extern void create_index_paths(Query *root, RelOptInfo *rel); -extern Oid indexable_operator(Expr *clause, Oid opclass, Oid relam, - bool indexkey_on_left); +extern Oid indexable_operator(Expr *clause, Oid opclass, + bool indexkey_on_left); extern List *extract_or_indexqual_conditions(RelOptInfo *rel, IndexOptInfo *index, Expr *orsubclause); |