postgresql/src/backend/utils
Tom Lane f933766ba7 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.
2001-08-21 16:36:06 +00:00
..
adt Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in 2001-08-21 16:36:06 +00:00
cache Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in 2001-08-21 16:36:06 +00:00
error Use a fixed error message for ERANGE to avoid duplicate test result files. 2001-08-06 21:55:16 +00:00
fmgr sum() on int2 and int4 columns now uses an int8, not numeric, accumulator 2001-08-14 22:21:59 +00:00
hash Statistical system views (yet without the config stuff, but 2001-06-22 19:16:24 +00:00
init Add conver/convert2 functions. They are similar to the SQL99's convert. 2001-08-15 07:07:40 +00:00
mb Add conver/convert2 functions. They are similar to the SQL99's convert. 2001-08-15 07:07:40 +00:00
misc Move WAL params higher in file, next to fsync option. 2001-08-21 16:31:23 +00:00
mmgr pgindent run. Make it all clean. 2001-03-22 04:01:46 +00:00
sort Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in 2001-08-21 16:36:06 +00:00
time Improve documentation about reasoning behind the order of operations 2001-07-16 22:43:34 +00:00
.cvsignore
Gen_fmgrtab.sh The Watcom preprocessor adds a space at the start of each line. Therefore 2001-05-22 12:06:51 +00:00
Makefile Fix relative path references so that make knowns which dependencies refer 2000-08-31 16:12:35 +00:00