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Heikki Linnakangas d212957254 Fix bug in bulk extending temp relation after failure 
A ResourceOwnerEnlarge() call was missing. That led to an error:

ERROR:  ResourceOwnerRemember called but array was full

and an assertion failure, if you tried to extend a temp relation again
after a failure. Alexander's test case used running out of disk space
to trigger the original failure.

This bug was introduced in the large ResourceOwner rewrite commit
b8bff07daa. Before that, the UnpinLocalBuffer() call guaranteed that
the subsequent PinLocalBuffer() will succeed, but after the rewrite,
releasing an old resource doesn't guarantee that there is space for a
new one.

Add a comment explaining why the UnpinBuffer + PinBuffer calls in
BufferAlloc(), with no ResourceOwnerEnlarge() in between, are safe.

Reported-by: Alexander Lakhin
Discussion: https://www.postgresql.org/message-id/dc574fea-c83e-a600-08cd-10881762e4fa@gmail.com
2024-02-02 21:12:30 +02:00
..
backend Fix bug in bulk extending temp relation after failure 2024-02-02 21:12:30 +02:00
bin Avoid package qualification of $windows_os 2024-02-01 15:19:56 -05:00
common Move is_valid_ascii() to ascii.h. 2024-01-29 12:08:57 -06:00
fe_utils Update copyright for 2024 2024-01-03 20:49:05 -05:00
include Give SMgrRelation pointers a well-defined lifetime. 2024-01-31 12:31:02 +02:00
interfaces Exclude Threadsanitizer instrumentation in exit check 2024-01-31 22:54:45 +01:00
makefiles Add backend support for injection points 2024-01-22 10:15:50 +09:00
pl Fix plpgsql to allow new-style SQL CREATE FUNCTION as a SQL command. 2024-01-18 16:11:16 -05:00
port Update copyright for 2024 2024-01-03 20:49:05 -05:00
template Use unnamed POSIX semaphores on Cygwin. 2023-01-06 10:33:28 +13:00
test Allow Gather Merge in more cases for parallel DISTINCT 2024-02-03 00:20:18 +13:00
timezone Update time zone data files to tzdata release 2024a. 2024-02-01 15:57:53 -05:00
tools Fix various issues with ALTER TEXT SEARCH CONFIGURATION 2024-01-31 13:15:21 +09:00
tutorial Update copyright for 2024 2024-01-03 20:49:05 -05:00
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Makefile Remove distprep 2023-11-06 15:18:04 +01:00
Makefile.global.in Remove make function vpathsearch 2024-01-29 07:24:59 +01:00
Makefile.shlib Support shared libraries on Android (using make) 2024-01-23 20:37:49 +01:00
meson.build Update copyright for 2024 2024-01-03 20:49:05 -05:00
nls-global.mk Remove distprep 2023-11-06 15:18:04 +01:00