Re: Automatic optimization of IN clauses via INNER JOIN

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Thomas Hamilton <thomashamilton76(at)yahoo(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Automatic optimization of IN clauses via INNER JOIN
Date: 2009-12-17 15:57:15
Message-ID: 2520.1261065435@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

Thomas Hamilton <thomashamilton76(at)yahoo(dot)com> writes:
> But in our testingunder the same optimization and conditions INNER JOIN is significantly outperforming IN.

[ shrug... ] You haven't provided any details, so it's impossible to
offer any useful advice.

regards, tom lane

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Robert Haas 2009-12-17 18:05:28 Re: Automatic optimization of IN clauses via INNER JOIN
Previous Message Thomas Hamilton 2009-12-17 15:45:30 Re: Automatic optimization of IN clauses via INNER JOIN