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Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in

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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.
This commit is contained in:
Tom Lane
2001-08-21 16:36:06 +00:00
parent c2d1566912
commit f933766ba7
60 changed files with 1918 additions and 1929 deletions
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47
src/include/utils/syscache.h
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@@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: syscache.h,v 1.32 2001/08/10 18:57:41 tgl Exp $
* $Id: syscache.h,v 1.33 2001/08/21 16:36:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -32,28 +32,29 @@
#define AMNAME 1
#define AMOPOPID 2
#define AMOPSTRATEGY 3
#define ATTNAME 4
#define ATTNUM 5
#define CLADEFTYPE 6
#define CLANAME 7
#define GRONAME 8
#define GROSYSID 9
#define INDEXRELID 10
#define INHRELID 11
#define LANGNAME 12
#define LANGOID 13
#define OPERNAME 14
#define OPEROID 15
#define PROCNAME 16
#define PROCOID 17
#define RELNAME 18
#define RELOID 19
#define RULENAME 20
#define SHADOWNAME 21
#define SHADOWSYSID 22
#define STATRELATT 23
#define TYPENAME 24
#define TYPEOID 25
#define AMPROCNUM 4
#define ATTNAME 5
#define ATTNUM 6
#define CLAAMNAME 7
#define CLAOID 8
#define GRONAME 9
#define GROSYSID 10
#define INDEXRELID 11
#define INHRELID 12
#define LANGNAME 13
#define LANGOID 14
#define OPERNAME 15
#define OPEROID 16
#define PROCNAME 17
#define PROCOID 18
#define RELNAME 19
#define RELOID 20
#define RULENAME 21
#define SHADOWNAME 22
#define SHADOWSYSID 23
#define STATRELATT 24
#define TYPENAME 25
#define TYPEOID 26
extern void InitCatalogCache(void);