Re: pg_stat_get_autovacuum_scores ignores the main table's reloptions for TOAST tables

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_stat_get_autovacuum_scores ignores the main table's reloptions for TOAST tables
Date: 2026-08-28 18:50:06
Message-ID: apHYXnOIckxM37BQ@nathan
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On Fri, Aug 28, 2026 at 11:12:34AM -0700, Masahiko Sawada wrote:
> Thank you for making the patch quickly! The patch looks good to me. A nitpick:

Thanks for reviewing.

> + if (found && hentry->ar_hasrelopts)
> + avopts = &hentry->ar_reloptions;
>
> ar_hasrelopts is always true here, since entries are only created when
> extract_autovac_opts() returns non-NULL, so the second conjunct is
> redundant actually. Having said that, it seems safer for future
> changes and keeping it for symmetry with do_autovacuum() seems fine to
> me.

Yeah, this is about what I was thinking.

> Do we want to have regression tests for it? FWIW no test exercises
> pg_stat_get_autovacuum_scores(). The only reference in the tree is the
> view definition in rules.out. That's presumably why this went
> unnoticed.

It might be worth adding a test or two for this view, but I doubt it
would've caught this issue. IIRC I held off adding tests originally
because I was worried about test stability.

--
nathan

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