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From: Stephan Szabo <sszabo@megazone23.bigpanda.com>
To: ww zz <ts_999@yahoo.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: how to do this query?
Date: Tue, 20 May 2003 10:49:42 -0700 (PDT)
Message-ID: <20030520104746.D69760-100000@megazone23.bigpanda.com> (raw)
In-Reply-To: <20030520171940.63419.qmail@web41805.mail.yahoo.com>


On Tue, 20 May 2003, ww zz wrote:

> another question is:
> if I do left outer join on a few big tables, will it
> be very slow?

In general, it shouldn't be particularly, or at least not particularly
worse than an inner join that gave the same number of result rows.




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