Re: Subquery WHERE IN or WHERE EXISTS faster?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Jaime Casanova" <jcasanov(at)systemguards(dot)com(dot)ec>
Cc: Ulrich <ulrich(dot)mierendorff(at)gmx(dot)net>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Subquery WHERE IN or WHERE EXISTS faster?
Date: 2008-06-30 04:48:44
Message-ID: 11687.1214801324@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

"Jaime Casanova" <jcasanov(at)systemguards(dot)com(dot)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

In response to

Browse pgsql-performance by date

  From Date Subject
Next Message Rusty Conover 2008-06-30 06:50:27 Re: Subquery WHERE IN or WHERE EXISTS faster?
Previous Message Jaime Casanova 2008-06-30 04:33:57 Re: Subquery WHERE IN or WHERE EXISTS faster?