Re: loading data, creating indexes, clustering, vacuum...

From: "Shoaib Mir" <shoaibmir(at)gmail(dot)com>
To: Angva <angvaw(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: loading data, creating indexes, clustering, vacuum...
Date: 2006-12-09 08:25:21
Message-ID: bf54be870612090025r6bfe9ad1i8334e10d13f79dfc@mail.gmail.com
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If set have the max_fsm_pages set correctly, that makes VACUUM faster and
removes the need for VACUUM FULL or REINDEX. Should be slightly more than
the total number of data pages which will be touched by updates and deletes
between vacuums.

Thanks,
--------
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 8 Dec 2006 09:33:31 -0800, Angva <angvaw(at)gmail(dot)com> wrote:
>
> > clustering also removes the dead tuples.
>
> I have a followup question. What if the set of dead tuples is too big
> and I need to VACUUM FULL, as opposed to VACUUM. (The update size
> varies greatly from day to day.) Will the clustering effectively do a
> VACUUM FULL, or just a VACUUM?
>
> Thanks again for your help,
> Mark
>
>
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