From: Richard Huxton <dev@archonet.com>
To: Gauri Kanekar <meetgaurikanekar@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Auto Vacuum Problem
Date: Wed, 24 Jan 2007 08:54:05 +0000
Message-ID: <45B71EAD.7060301@archonet.com> (raw)
In-Reply-To: <7e4ba9550701240049w22e65273s3dc8ba58a9a735b@mail.gmail.com>
References: <7e4ba9550701240049w22e65273s3dc8ba58a9a735b@mail.gmail.com>
Gauri Kanekar wrote:
> Hi List,
>
> When auto vacuum is over the dead tuple are seems to get reduced, but
> physical size of database do not decreases.
It won't necessarily. An ordinary vacuum just keeps track of old rows
that can be cleared and re-used. A "vacuum full" is needed to compact
the table.
If you are running a normal vacuum often enough then the size of the
database should remain about the same (unless you insert more rows of
course).
--
Richard Huxton
Archonet Ltd
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To: pgsql-performance@postgresql.org
Cc: dev@archonet.com, meetgaurikanekar@gmail.com
Subject: Re: Auto Vacuum Problem
In-Reply-To: <45B71EAD.7060301@archonet.com>
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