On Wed, Jan 25, 2023 at 11:57 AM Kyotaro Horiguchi <horikyota....@gmail.com> wrote: > > At Tue, 24 Jan 2023 12:19:04 +0000, "Takamichi Osumi (Fujitsu)" > <osumi.takami...@fujitsu.com> wrote in > > Attached the patch v20 that has incorporated all comments so far. > ... > > > + in which case no additional wait is necessary. If the system clocks > + on publisher and subscriber are not synchronized, this may lead to > + apply changes earlier than expected, but this is not a major issue > + because this parameter is typically much larger than the time > + deviations between servers. Note that if this parameter is set to a > > This doesn't seem to fit our documentation. It is not our business > whether a certain amount deviation is critical or not. How about > somethig like the following? >
But we have a similar description for 'recovery_min_apply_delay' [1]. See "...If the system clocks on primary and standby are not synchronized, this may lead to recovery applying records earlier than expected; but that is not a major issue because useful settings of this parameter are much larger than typical time deviations between servers." [1] - https://www.postgresql.org/docs/devel/runtime-config-replication.html -- With Regards, Amit Kapila.
