Tom Lane 2119cc0670 Further improvements in cnfify: reduce amount of self-recursion ... in or_normalize, remove detection of duplicate subexpressions (since it's highly unlikely to be worth the amount of time it takes), and introduce a dnfify() entry point so that unintelligible backwards logic in UNION processing can be eliminated. This is just an intermediate step --- next thing is to look at not forcing the qual into CNF form when it would be better off in DNF form.		1999-09-12 18:08:17 +00:00
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Makefile	[Part #1: Type: text/plain, Encoding: 7bit, Size: 59]	1998-09-03 02:34:35 +00:00
prepkeyset.c	Move some system includes into c.h, and remove duplicates.	1999-07-17 20:18:55 +00:00
prepqual.c	Further improvements in cnfify: reduce amount of self-recursion	1999-09-12 18:08:17 +00:00
preptlist.c	Further planner/optimizer cleanups. Move all set_tlist_references	1999-08-22 20:15:04 +00:00
prepunion.c	Major revision of sort-node handling: push knowledge of query	1999-08-21 03:49:17 +00:00