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Michael Paquier dbab0c07e5 Remove forced toast recompression in VACUUM FULL/CLUSTER 
The extra checks added by the recompression of toast data introduced in
bbe0a81 is proving to have a performance impact on VACUUM or CLUSTER
even if no recompression is done.  This is more noticeable with more
toastable columns that contain non-NULL values.

Improvements could be done to make those extra checks less expensive,
but that's not material for 14 at this stage, and we are not sure either
if the code path of VACUUM FULL/CLUSTER is adapted for this job.

Per discussion with several people, including Andres Freund, Robert
Haas, Álvaro Herrera, Tom Lane and myself.

Discussion: https://postgr.es/m/20210527003144.xxqppojoiwurc2iz@alap3.anarazel.de
2021-06-14 09:25:50 +09:00
..
backend Remove forced toast recompression in VACUUM FULL/CLUSTER 2021-06-14 09:25:50 +09:00
bin Work around portability issue with newer versions of mktime(). 2021-06-13 14:32:42 -04:00
common Fix incautious handling of possibly-miscoded strings in client code. 2021-06-07 14:15:25 -04:00
fe_utils Fix incautious handling of possibly-miscoded strings in client code. 2021-06-07 14:15:25 -04:00
include Return ReplicationSlotAcquire API to its original form 2021-06-11 15:48:26 -04:00
interfaces Add 'Portal Close' message to pipelined PQsendQuery() 2021-06-11 16:05:50 -04:00
makefiles Add NO_INSTALL option to pgxs 2021-05-27 13:58:29 +02:00
pl Reconsider the handling of procedure OUT parameters. 2021-06-10 17:11:36 -04:00
port Fix error handling in replacement pthread_barrier_init(). 2021-06-01 11:31:06 +12:00
template Further tweaking of PG_SYSROOT heuristics for macOS. 2021-01-20 12:07:23 -05:00
test Remove forced toast recompression in VACUUM FULL/CLUSTER 2021-06-14 09:25:50 +09:00
timezone Update time zone data files to tzdata release 2021a. 2021-01-24 16:29:47 -05:00
tools fix syntax error 2021-05-28 09:35:11 -04:00
tutorial doc: Prefer explicit JOIN syntax over old implicit syntax in tutorial 2021-04-08 10:51:26 +02:00
.gitignore
DEVELOPERS
Makefile Remove the option to build thread_test.c outside configure. 2020-10-21 12:08:48 -04:00
Makefile.global.in Update Unicode data to CLDR 39 2021-04-08 08:28:03 +02:00
Makefile.shlib Add PostgreSQL home page to --help output 2020-02-28 13:12:21 +01:00
nls-global.mk Add errhint_plural() function and make use of it 2021-03-31 09:16:25 +02:00