Tom Lane c676f835b5 Ensure that seqscans check for interrupts at least once per page. ... If a seqscan encounters many consecutive pages containing only dead tuples, it can remain in the loop in heapgettup for a long time, and there was no CHECK_FOR_INTERRUPTS anywhere in that loop. This meant there were real-world situations where a query would be effectively uncancelable for long stretches. Add a check placed to occur once per page, which should be enough to provide reasonable response time without adding any measurable overhead. Report and patch by Merlin Moncure (though I tweaked it a bit). Back-patch to all supported branches.		2012-05-22 19:42:18 -04:00
..
backend	Ensure that seqscans check for interrupts at least once per page.	2012-05-22 19:42:18 -04:00
bin	Revert recent commit re positional arguments.	2012-04-18 10:58:01 -04:00
include	Ensure age() returns a stable value rather than the latest value	2012-05-11 14:38:53 +01:00
interfaces	ecpg: Fix off-by-one error in memory copying	2012-03-11 01:03:16 +02:00
makefiles	Fix assorted issues with build and install paths containing spaces.	2011-06-14 16:41:23 -04:00
pl	PL/pgSQL RETURN NEXT was leaking converted tuples, causing	2012-05-09 22:51:17 -07:00
port	Stamp 9.0.7.	2012-02-23 17:56:26 -05:00
template	Don't try to force use of -no-cpp-precomp on OS X. It's been five years	2010-08-02 04:51:25 +00:00
test	Fix COPY FROM for null marker strings that correspond to invalid encoding.	2012-03-25 23:17:32 -04:00
timezone	Fix edge-case behavior of pg_next_dst_boundary().	2012-04-25 17:25:24 -04:00
tools	Backpatch "Use the preferred version of xsubpp."	2011-11-28 07:54:03 -05:00
tutorial	Remove copyright mention of Andrew Yu, per author's permission.	2010-02-02 18:52:02 +00:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:06 +02:00
bcc32.mak	Remove old-style win32 client-only visual c++ build infrastructure for everything except	2007-03-05 14:18:38 +00:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Rethink the way walreceiver is linked into the backend. Instead than shoving	2010-01-20 09:16:24 +00:00
Makefile.global.in	Accept slightly grotty coding in Makefile.global in order to keep the -L	2010-07-06 22:03:05 +00:00
Makefile.shlib	Fix assorted issues with build and install paths containing spaces.	2011-06-14 16:41:23 -04:00
nls-global.mk	Avoid error from mkdir if no languages are to be installed	2010-05-13 14:35:28 +00:00
win32.mak	Update supported standalone VC++ version to 7.1+ only, and fix	2007-08-03 10:47:11 +00:00