Michael Paquier 4035cd5d4e Add support for LZ4 with compression of full-page writes in WAL ... The logic is implemented so as there can be a choice in the compression used when building a WAL record, and an extra per-record bit is used to track down if a block is compressed with PGLZ, LZ4 or nothing. wal_compression, the existing parameter, is changed to an enum with support for the following backward-compatible values: - "off", the default, to not use compression. - "pglz" or "on", to compress FPWs with PGLZ. - "lz4", the new mode, to compress FPWs with LZ4. Benchmarking has showed that LZ4 outclasses easily PGLZ. ZSTD would be also an interesting choice, but going just with LZ4 for now makes the patch minimalistic as toast compression is already able to use LZ4, so there is no need to worry about any build-related needs for this implementation. Author: Andrey Borodin, Justin Pryzby Reviewed-by: Dilip Kumar, Michael Paquier Discussion: https://postgr.es/m/3037310D-ECB7-4BF1-AF20-01C10BB33A33@yandex-team.ru		2021-06-29 11:17:55 +09:00
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brin	Fix an asssortment of typos in brin_minmax_multi.c and mcv.c	2021-06-10 20:13:44 +12:00
common	Message style improvements	2021-06-28 08:36:44 +02:00
gin
gist	Remove redundant variable pageSize in gistinitpage	2021-06-25 07:55:34 +02:00
hash
heap	Pre branch pgindent / pgperltidy run	2021-06-28 11:05:54 -04:00
index	Initial pgindent and pgperltidy run for v14.	2021-05-12 13:14:10 -04:00
nbtree	Report sort phase progress in parallel btree build	2021-06-11 19:07:32 -04:00
rmgrdesc
spgist	Re-order pg_attribute columns to eliminate some padding space.	2021-05-23 12:12:09 -04:00
table
tablesample
transam	Add support for LZ4 with compression of full-page writes in WAL	2021-06-29 11:17:55 +09:00
Makefile