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From: Laurenz Albe <[email protected]>
To: Raj <[email protected]>
Cc: Pgsql-admin <[email protected]>
Subject: Re: Size of /pgdata
Date: Mon, 15 Jun 2026 08:17:41 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAJk5AtburOY2ugaH-6+8OHgOBwyyaq1V3LLozCAf57c5jtmR+w@mail.gmail.com>
References: <CAJk5Atb1v7=x-wsS-tL7Lxs7yXQy8Ng-GhXG+zzZ1gVAx=Xzjw@mail.gmail.com>
	<[email protected]>
	<CAJk5AtburOY2ugaH-6+8OHgOBwyyaq1V3LLozCAf57c5jtmR+w@mail.gmail.com>

On Mon, 2026-06-15 at 06:48 +0530, Raj wrote:
> On Mon, 15 Jun 2026, 01:00 Laurenz Albe, <[email protected]> wrote:
> > On Sat, 2026-06-13 at 12:18 +0530, Raj wrote:
> > > I took one big sample table which is 73GB, and using relfilenode(327683) I tried finding the
> > > underlying file size du -sh 327683*  and able to find the total size the files occpuing and
> > > found 113gb.......so for one table itself it is 40Gb additional...
> > 
> > Investigate more:
> > 
> > - Make sure that you don't get files from another filenode like 3276838.
> > 
> > - If the relation (as shown by pg_relation_size('tablename')) is 73GB,
> >   it should consist of 327683, 327683.1, 327683.2, ..., 327683.72.
> >   Check what additional files there are.
> > 
> > - Extra files can be left behind after a crash.  Were there any?
>
> No, I am using the command du -ch 327101*

That reply does not make any sense to me.

Yours,
Laurenz Albe

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