Tom Lane 6730685886 Improve inheritance_planner()'s performance for large inheritance sets. ... Commit c03ad5602f introduced a planner performance regression for UPDATE/DELETE on large inheritance sets. It required copying the append_rel_list (which is of size proportional to the number of inherited tables) once for each inherited table, thus resulting in O(N^2) time and memory consumption. While it's difficult to avoid that in general, the extra work only has to be done for append_rel_list entries that actually reference subquery RTEs, which inheritance-set entries will not. So we can buy back essentially all of the loss in cases without subqueries in FROM; and even for those, the added work is mainly proportional to the number of UNION ALL subqueries. Back-patch to 9.2, like the previous commit. Tom Lane and Dean Rasheed, per a complaint from Thomas Munro.		2015-06-22 18:53:27 -04:00
..
backend	Improve inheritance_planner()'s performance for large inheritance sets.	2015-06-22 18:53:27 -04:00
bin	initdb -S should now have an explicit check that $PGDATA is valid.	2015-05-29 17:02:58 -04:00
common	Unlink static libraries before rebuilding them.	2015-03-01 13:06:39 -05:00
include	Stamp 9.3.9.	2015-06-09 15:31:32 -04:00
interfaces	Check for out of memory when allocating sqlca.	2015-06-15 14:22:54 +02:00
makefiles	Don't use deprecated dllwrap on Cygwin.	2014-02-01 16:13:32 -05:00
pl	Revert error-throwing wrappers for the printf family of functions.	2015-05-19 18:16:58 -04:00
port	Truncate strings in tarCreateHeader() with strlcpy(), not sprintf().	2015-06-21 20:05:11 -04:00
template	Remove _FORTIFY_SOURCE	2012-10-10 21:42:38 -04:00
test	Improve error message and hint for ALTER COLUMN TYPE can't-cast failure.	2015-06-12 11:54:03 -04:00
timezone	Update time zone data files to tzdata release 2015d.	2015-05-15 19:35:58 -04:00
tools	Revert error-throwing wrappers for the printf family of functions.	2015-05-19 18:16:58 -04:00
tutorial	Remove tabs after spaces in C comments	2014-05-06 11:26:28 -04:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
bcc32.mak	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Create libpgcommon, and move pg_malloc et al to it	2013-02-12 11:21:05 -03:00
Makefile.global.in	Revert "Backpatch pgxs vpath build and installation fixes."	2013-10-07 22:32:04 -04:00
Makefile.shlib	Unlink static libraries before rebuilding them.	2015-03-01 13:06:39 -05:00
nls-global.mk	NLS: Use msgmerge --previous option	2012-12-13 23:12:12 -05:00
win32.mak	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00