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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.		25 years ago
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Makefile	Fix relative path references so that make knowns which dependencies refer	26 years ago
logtape.c	Change Copyright from PostgreSQL, Inc to PostgreSQL Global Development Group.	25 years ago
tuplesort.c	Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in	25 years ago
tuplestore.c	pgindent run. Make it all clean.	25 years ago