database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-10 17:42:29 +03:00
Code Activity

Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

8
src/backend/commands/command.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.140 2001/08/10 18:57:34 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.141 2001/08/21 16:36:01 tgl Exp $
*
* NOTES
* The PerformAddAttribute() code, like most of the relation
@@ -1902,12 +1902,12 @@ AlterTableCreateToastTable(const char *relationName, bool silent)
indexInfo->ii_FuncOid = InvalidOid;
indexInfo->ii_Unique = true;
classObjectId[0] = OID_OPS_OID;
classObjectId[1] = INT4_OPS_OID;
classObjectId[0] = OID_BTREE_OPS_OID;
classObjectId[1] = INT4_BTREE_OPS_OID;
toast_idxid = index_create(toast_relname, toast_idxname, indexInfo,
BTREE_AM_OID, classObjectId,
false, true, true);
true, true);
/*
* Update toast rel's pg_class entry to show that it has an index.