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From: David G. Johnston <[email protected]>
To: Andreas Karlsson <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: doc: Improve wal_level and effective_wal_level GUC around logical replication
Date: Tue, 7 Apr 2026 20:27:54 -0700
Message-ID: <CAKFQuwb3dG_tLFbWc_A_NMu-1b7xfGhPBa=dnAGptBT_CNBqLw@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAKFQuwY=WLF0OH8JE5T8S=aj0LBydiSn02fkRE73Sm_KSLRqJQ@mail.gmail.com>
	<[email protected]>

On Tuesday, April 7, 2026, Andreas Karlsson <[email protected]> wrote:

>
> Since effective_wal_level now exists, Logical Replication Getting Started
>> needs to be updated.
>>
>> Shouldn't it be:
>
> "Ensure that <xref linkend="guc-wal-level"/> is at least replica"
>

Given “at least” it is immaterial whether one inspects wal_level or
effective_wal_level.  It seems more intuitive to tell someone to look at
the value that represents what the system presently is using, not the
defined minimum level.

David J.

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