Delayed replication missing in documentation

From: PG Doc comments form <noreply(at)postgresql(dot)org>
To: pgsql-docs(at)lists(dot)postgresql(dot)org
Cc: oli(dot)sennhauser(at)fromdual(dot)com
Subject: Delayed replication missing in documentation
Date: 2026-07-31 08:51:15
Message-ID: 178548787563.1228.7091256507204447634@wrigleys.postgresql.org
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-docs

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/18/warm-standby.html
Description:

Somewhere here: https://www.postgresql.org/docs/current/warm-standby.html I
would expect a few lines about the possibility of delayed
replication/delayed standby.

After going through all this site I finally ended up googling and found
this:
https://about.gitlab.com/blog/delayed-replication-for-disaster-recovery-with-postgresql/

So, yes PostgreSQL can do delayed replication. But it is hidden here:
https://www.postgresql.org/docs/current/runtime-config-replication.html#GUC-RECOVERY-MIN-APPLY-DELAY

What about adding something like:

26.2.10. Delayed Replication

When streaming replication is used a standby tries to keep up as fast as
possible. But sometime it is desirable for a standby to lag artificially.
The most common use case is to not apply Oops-Queries or to not provide the
most recent data to a specific user group (freemium business model).

This can be achieved with the the configuration:

recovery_min_apply_delay = '4h'

Browse pgsql-docs by date

  From Date Subject
Next Message PG Doc comments form 2026-07-31 09:08:31 References/Links missing
Previous Message David G. Johnston 2026-07-30 12:45:58 Re: Shadowing type names because I am not smart