Skip site navigation (1) Skip section navigation (2)

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 (view raw or flat)
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

pgsql-performance by date

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

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group