Re: doc: Improve description of io_combine_limit and io_max_combine_limit GUCs

From: Karina Litskevich <litskevichkarina(at)gmail(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: doc: Improve description of io_combine_limit and io_max_combine_limit GUCs
Date: 2025-10-31 14:45:07
Message-ID: CACiT8iaqKEm1KLajCBDinA+nvLxLABX04S4YR=C4oU9Zz4cm+Q@mail.gmail.com
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On Thu, Oct 30, 2025 at 4:31 PM Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>
> I also noticed another issue in the io_max_combine_limit docs.
> Since its context is PGC_POSTMASTER, shouldn't the following
> description be updated to say "This parameter can only be set at server start"?
>
> This parameter can only be set in
> the <filename>postgresql.conf</filename> file or on the server
> command line.
>

Nice catch! I am going to check if there are other GUCs with
PGC_POSTMASTER and wrong documentation. I'll come back with an
updated version of the patch.

Best regards,
Karina Litskevich
Postgres Professional: http://postgrespro.com/

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