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Change the default value of the streaming option to 'parallel'.

author Amit Kapila <akapila@postgresql.org>

2024年10月28日 03:12:05 +0000 (08:42 +0530)

committer Amit Kapila <akapila@postgresql.org>

2024年10月28日 03:12:05 +0000 (08:42 +0530)

commit 1bf1140be87230c71d0e7b29939f7e2b3d073aa1

tree 4e41b121692ed4371283cf9909c0504259fcad74 tree

parent 6b652e6ce85a977e4ca7b8cc045cf4f3457b2d7b commit | diff

Change the default value of the streaming option to 'parallel'.

Previously the default value of streaming option for a subscription was
'off'. The parallel option indicates that the changes in large
transactions (greater than logical_decoding_work_mem) are to be applied
directly via one of the parallel apply workers, if available.

The parallel mode was introduced in 16, but we refrain from enabling it by
default to avoid seeing any unpleasant behavior in the existing
applications. However we haven't found any such report yet, so this is a
good time to enable it by default.

Reported-by: Vignesh C
Author: Hayato Kuroda, Masahiko Sawada, Peter Smith, Amit Kapila
Discussion: https://postgr.es/m/CALDaNm1=MedhW23NuoePJTmonwsMSp80ddsw+sEJs0GUMC_kqQ@mail.gmail.com

doc/src/sgml/ref/create_subscription.sgml diff | blob | blame | history

src/backend/commands/subscriptioncmds.c diff | blob | blame | history

src/bin/pg_dump/pg_dump.c diff | blob | blame | history

src/bin/pg_dump/t/002_pg_dump.pl diff | blob | blame | history

src/test/regress/expected/subscription.out diff | blob | blame | history

src/test/subscription/t/022_twophase_cascade.pl diff | blob | blame | history

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