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Alvaro Herrera 0b9ed725d1 Fix longstanding problems in VACUUM caused by untimely interruptions ... In VACUUM FULL, an interrupt after the initial transaction has been recorded as committed can cause postmaster to restart with the following error message: PANIC: cannot abort transaction NNNN, it was already committed This problem has been reported many times. In lazy VACUUM, an interrupt after the table has been truncated by lazy_truncate_heap causes other backends' relcache to still point to the removed pages; this can cause future INSERT and UPDATE queries to error out with the following error message: could not read block XX of relation 1663/NNN/MMMM: read only 0 of 8192 bytes The window to this race condition is extremely narrow, but it has been seen in the wild involving a cancelled autovacuum process. The solution for both problems is to inhibit interrupts in both operations until after the respective transactions have been committed. It's not a complete solution, because the transaction could theoretically be aborted by some other error, but at least fixes the most common causes of both problems.		16 years ago
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backend	Fix longstanding problems in VACUUM caused by untimely interruptions	16 years ago
bin	Translation updates	17 years ago
include	Fix longstanding problems in VACUUM caused by untimely interruptions	16 years ago
interfaces	Remove outside-the-scanner references to "yyleng".	17 years ago
makefiles	Add $(CFLAGS) to the simplified build rule for .so libraries on Darwin.	19 years ago
pl	Fix obscure segfault condition in PL/Python	16 years ago
port	Tag 8.1.18	17 years ago
template	SUNOS4_CC -> SUNOS_CC.	21 years ago
test	Fix the handling of sub-SELECTs appearing in the arguments of an outer-level	17 years ago
timezone	Update time zone data files to tzdata release 2009l: DST law changes in	17 years ago
tools	Create a script to handle stamping release version numbers into files,	18 years ago
tutorial	Use SQL standard '' rather than \' for tutorial/sample code.	20 years ago
utils	…
DEVELOPERS	…
Makefile	…
Makefile.global.in	Fix problems with PGXS builds against an installation tree that was	21 years ago
Makefile.shlib	Fix out-of-order inclusion of -L switches from LDFLAGS on AIX and HPUX.	20 years ago
bcc32.mak	…
nls-global.mk	…
win32.mak	…