Tom Lane 483b17119a Fix relcache reload mechanism to be more robust in the face of errors ... occurring during a reload, such as query-cancel. Instead of zeroing out an existing relcache entry and rebuilding it in place, build a new relcache entry, then swap its contents with the old one, then free the new entry. This avoids problems with code believing that a previously obtained pointer to a cache entry must still reference a valid entry, as seen in recent failures on buildfarm member jaguar. (jaguar is using CLOBBER_CACHE_ALWAYS which raises the probability of failure substantially, but the problem could occur in the field without that.) The previous design was okay when it was made, but subtransactions and the ResourceOwner mechanism make it unsafe now. Also, make more use of the already existing rd_isvalid flag, so that we remember that the entry requires rebuilding even if the first attempt fails. Back-patch as far as 8.2. Prior versions have enough issues around relcache reload anyway (due to inadequate locking) that fixing this one doesn't seem worthwhile.		2010-01-12 18:12:40 +00:00
..
backend	Fix relcache reload mechanism to be more robust in the face of errors	2010-01-12 18:12:40 +00:00
bin	Translation updates	2009-12-08 22:13:05 +00:00
include	tag 8.2.15	2009-12-10 03:09:47 +00:00
interfaces	Set errno to zero before invoking SSL_read or SSL_write. It appears that	2009-12-30 03:46:08 +00:00
makefiles	Add $(CFLAGS) to the simplified build rule for .so libraries on Darwin.	2006-11-28 05:45:43 +00:00
pl	Previous fix for temporary file management broke returning a set from	2009-12-29 17:41:26 +00:00
port	tag 8.2.15	2009-12-10 03:09:47 +00:00
template	Make --with-ldap build on Unixware, per Olivier Prenant.	2006-12-14 21:50:07 +00:00
test	Fix the handling of sub-SELECTs appearing in the arguments of an outer-level	2009-04-25 16:45:12 +00:00
timezone	Update time zone data files to tzdata release 2009s: DST law changes in	2009-12-09 00:36:18 +00:00
tools	Enable the use of multiple CPUs/cores when building on MSVC. This only	2009-08-10 11:48:48 +00:00
tutorial	Fix some misuses of strncat().	2006-09-27 16:19:42 +00:00
bcc32.mak	Fix bcc32.mak to create and remove pg_config_os.h properly. Apparently	2006-10-06 18:53:53 +00:00
DEVELOPERS
Makefile
Makefile.global.in	On Windows, we know the backend stack size limit because we have to	2006-10-08 17:15:34 +00:00
Makefile.shlib
nls-global.mk
win32.mak