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From: Michael Stone <mstone+postgres@mathom.us>
To: Tomeh, Husam <htomeh@firstam.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: "Vacuum Full Analyze" taking so long
Date: Mon, 25 Jul 2005 17:30:58 -0400
Message-ID: <20050725213058.GQ19080@mathom.us> (raw)
In-Reply-To: <C45835824D00A844BBD0F032D5CDED920116DC10@pisgana01sxch01.ana.firstamdata.com>
References: <C45835824D00A844BBD0F032D5CDED920116DC10@pisgana01sxch01.ana.firstamdata.com>

I'd say, "don't do that". Unless you've deleted a lot of stuff and are
expecting the DB to shrink, a full vacuum shouldn't really be needed. On
a DB that big a full vacuum is just going to take a long time. If you
really are shrinking, consider structuring things so you can just drop a
table instead of vacuuming it (the drop is fairly instantaneous). If you
can't do that, consider dropping the indices, vacuuming, and recreating
the indices. 

Mike Stone



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