From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jaime Casanova <jcasanov@systemguards.com.ec>
Cc: Ulrich <ulrich.mierendorff@gmx.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: Subquery WHERE IN or WHERE EXISTS faster?
Date: Mon, 30 Jun 2008 00:48:44 -0400
Message-ID: <11687.1214801324@sss.pgh.pa.us> (raw)
In-Reply-To: <3073cc9b0806292133l397f0d8etef06b5bb3aba13ae@mail.gmail.com>
References: <48665741.2060900@gmx.net>
<29009.1214668423@sss.pgh.pa.us>
<3073cc9b0806292133l397f0d8etef06b5bb3aba13ae@mail.gmail.com>
"Jaime Casanova" <jcasanov@systemguards.com.ec> writes:
> i've made some queries run faster using EXISTS instead of large IN
> clauses... actually, it was NOT EXISTS replacing a NOT IN
That's just about entirely unrelated ...
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, jcasanov@systemguards.com.ec, ulrich.mierendorff@gmx.net
Subject: Re: Subquery WHERE IN or WHERE EXISTS faster?
In-Reply-To: <11687.1214801324@sss.pgh.pa.us>
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