Re: Giant TOAST tables due to many almost empty pages

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Rumko <rumcic(at)gmail(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: Giant TOAST tables due to many almost empty pages
Date: 2010-05-14 17:29:44
Message-ID: 18724.1273858184@sss.pgh.pa.us
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Rumko <rumcic(at)gmail(dot)com> writes:
> On Thursday 13. of May 2010 21:43:37 Tom Lane wrote:
>> Do *any* of the rows in pg_class have non-null reloptions?

> First of all, really sorry.
> "select reloptions from pg_class where relname = 'pg_toast_1066371';"
> Returns "{autovacuum_enabled=false}" (a remnant of some testing/playing) and
> not NULL (was looking at the wrong server).

> As for the others in pg_class, there is an index for a totally different table
> which has "{fillfactor=90}". There are a few more tables (main and toast)
> with "{autovacuum_enabled=false}" and that's it (others have NULL).

Hmm, do both of the toast tables with bloat problems have
"{autovacuum_enabled=false}" ?

regards, tom lane

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