Tom Lane 220e45bf32 Improve the planner's simplification of NOT constructs. ... This patch merges the responsibility for NOT-flattening into eval_const_expressions' processing. It wasn't done that way originally because prepqual.c is far older than eval_const_expressions. But putting this work into eval_const_expressions saves one pass over the qual trees, and in fact saves even more than that because we can exploit the knowledge that the subexpressions have already been recursively simplified. Doing it this way also lets us do it uniformly over all expressions, whereas prepqual.c formerly just did it at top level to save cycles. That should improve the planner's ability to recognize logically-equivalent constructs. While at it, also add the ability to fold a NOT into BooleanTest and NullTest constructs (the latter only for the scalar-datatype case). Per discussion of bug #5702.		2010-10-10 23:19:50 -04:00
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access	Improve logging in VACUUM FULL VERBOSE and CLUSTER VERBOSE.	2010-10-07 21:46:46 -04:00
bootstrap	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
catalog	Support triggers on views.	2010-10-10 13:45:07 -04:00
commands	Support triggers on views.	2010-10-10 13:45:07 -04:00
executor	Support triggers on views.	2010-10-10 13:45:07 -04:00
foreign	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
lib	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
libpq	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
main	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
nodes	Support triggers on views.	2010-10-10 13:45:07 -04:00
optimizer	Improve the planner's simplification of NOT constructs.	2010-10-10 23:19:50 -04:00
parser	Support triggers on views.	2010-10-10 13:45:07 -04:00
po	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
port	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
postmaster	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
regex	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
replication	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
rewrite	Support triggers on views.	2010-10-10 13:45:07 -04:00
snowball	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
storage	Improve messages for too many private files/dirs. Per Alexey Parshin.	2010-09-28 18:08:02 -04:00
tcop	Add a SECURITY LABEL command.	2010-09-27 20:55:27 -04:00
tsearch	Reduce the memory requirement for large ispell dictionaries.	2010-10-06 19:31:05 -04:00
utils	Support triggers on views.	2010-10-10 13:45:07 -04:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
common.mk	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
Makefile	The port/pg_latch.c symlink ought to be removed by make distclean.	2010-09-21 16:53:25 -04:00
nls.mk	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00