From: Tom Lane <tgl@sss.pgh.pa.us>
To: Patrick Welche <prlw1@newn.cam.ac.uk>
Cc: pgsql-general@postgresql.org
Subject: Re: explain ?
Date: Fri, 18 Apr 2003 10:20:33 -0400
Message-ID: <3742.1050675633@sss.pgh.pa.us> (raw)
In-Reply-To: <20030418141905.E18170@quartz.newn.cam.ac.uk>
References: <20030418141905.E18170@quartz.newn.cam.ac.uk>
Patrick Welche <prlw1@newn.cam.ac.uk> writes:
> I created an index on firsttimei, vacuum full analysed, and explain showed me
> *exactly* the same thing(!) The difference being that the query is now
> lightning fast :-)
Perhaps the vacuum got rid of a whole bunch of dead rows?
regards, tom lane
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To: pgsql-general@postgresql.org
Cc: tgl@sss.pgh.pa.us, prlw1@newn.cam.ac.uk
Subject: Re: explain ?
In-Reply-To: <3742.1050675633@sss.pgh.pa.us>
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