Re: VACUUM in 7.2

From: Marc Spitzer <marc(at)oscar(dot)eng(dot)cv(dot)net>
To: Robert(dot)Farrugia(at)go(dot)com(dot)mt
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: VACUUM in 7.2
Date: 2002-03-06 19:58:52
Message-ID: 20020306145852.A2018@oscar.eng.cv.net
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On Wed, Mar 06, 2002 at 09:57:48AM +0100, Robert(dot)Farrugia(at)go(dot)com(dot)mt wrote:
>
> Hi,
>
> What function does VACUUM play in 7.2 ? Since a normal VACUUM does not
> reclaim space, is it run only to update statistics ?
> Is VACUUM still very slow on very large tables (over 50GB) like in 7.1 ?
>
> Regards
> Robert

In the 7.2 docs it explains what the new and improved vscuum does. It
will go through a table and mark deleted tuples as free so the db can
reuse allocked disk space. there is also a new option that will give
you the old behavior. It is in the 7.2 admin guide chapter 8.

marc

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