Re: Vacuuming the free space map considered harmful?

From: Andres Freund <andres(at)anarazel(dot)de>
To: Christophe Pettus <xof(at)thebuild(dot)com>
Cc: Melanie Plageman <melanieplageman(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Vacuuming the free space map considered harmful?
Date: 2025-03-19 14:12:27
Message-ID: bidhizmhjslbd7vmg2ojyzw3yqrizg3hzxcb3egzlczzj4y6y4@wml2v6yfbg2f
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Hi,

On 2025-03-19 15:05:47 +0100, Christophe Pettus wrote:
> > On Mar 19, 2025, at 14:12, Melanie Plageman <melanieplageman(at)gmail(dot)com> wrote:
> >
> > Do you know how big the FSM was?
>
> Unfortunately, no; both installations are locked-down hosted environments.

That can be checked with pg_relation_size(), e.g.
SELECT pg_relation_size('pg_class', 'fsm');
nothing special required.

Greetings,

Andres Freund

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