Tom Lane 0816fad6ee Undo 8.4-era lobotomization of subquery pullup rules. ... After the planner was fixed to convert some IN/EXISTS subqueries into semijoins or antijoins, we had to prevent it from doing that in some cases where the plans risked getting much worse. The reason the plans got worse was that in the unoptimized implementation, subqueries could reference parameters from the outer query at any join level, and so full table scans could be avoided even if they were one or more levels of join below where the semi/anti join would be. Now that we have sufficient mechanism in the planner to handle such cases properly, it should no longer be necessary to play dumb here. This reverts commits 07b9936a0f and cd1f0d04bf. The latter was a stopgap fix that wasn't really sufficiently analyzed at the time. Rather than just restricting ourselves to cases where the new join can be stacked on the right-hand input, we should also consider whether it can be stacked on the left-hand input.		2012-01-27 19:46:41 -05:00
..
backend	Undo 8.4-era lobotomization of subquery pullup rules.	2012-01-27 19:46:41 -05:00
bin	pg_dump: Move connection-setup code to a separate function.	2012-01-27 10:59:27 -05:00
include	Use parameterized paths to generate inner indexscans more flexibly.	2012-01-27 19:26:38 -05:00
interfaces	Ecpglib stores variables that are used in DECLARE statements in a global list.	2012-01-05 14:08:45 +01:00
makefiles	Add pg_upgrade test suite	2011-11-27 22:42:32 +02:00
pl	Improve efficiency of recent changes to plperl's sv2cstr().	2012-01-15 16:15:04 -05:00
port	Revert binary change in copyright year adjustment.	2012-01-01 19:40:13 -05:00
template	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
test	Show default privileges in information schema	2012-01-27 21:58:51 +02:00
timezone	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
tools	Fix pathname in pgindent README.	2012-01-09 13:31:58 -05:00
tutorial	Update copyright notices for year 2012.	2012-01-01 18:01:58 -05:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
bcc32.mak	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Fix some oversights in distprep and maintainer-clean targets.	2011-03-10 00:04:05 -05:00
Makefile.global.in	Make distprep and *clean build targets recurse into all subdirectories.	2011-07-03 13:55:12 -04:00
Makefile.shlib	Use single quotes in preference to double quotes for protecting pathnames.	2011-06-15 21:45:23 -04:00
nls-global.mk	Sort compendium lists for msgmerge	2011-12-27 20:22:51 +02:00
win32.mak	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00