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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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6
src/backend/bootstrap/bootparse.y
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootparse.y,v 1.37 2001/08/10 18:57:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/bootstrap/bootparse.y,v 1.38 2001/08/21 16:36:00 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -246,7 +246,7 @@ Boot_DeclareIndexStmt:
DefineIndex(LexIDStr($5),
LexIDStr($3),
LexIDStr($7),
$9, NIL, 0, 0, 0, NIL);
$9, false, false, NULL, NIL);
do_end();
}
;
@ -259,7 +259,7 @@ Boot_DeclareUniqueIndexStmt:
DefineIndex(LexIDStr($6),
LexIDStr($4),
LexIDStr($8),
$10, NIL, 1, 0, 0, NIL);
$10, true, false, NULL, NIL);
do_end();
}
;