pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Rob Schall <rschall@callone.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: Identical Queries
Date: Thu, 1 Mar 2007 14:23:08 -0800 (PST)
Message-ID: <20070301142004.J53183@megazone.bigpanda.com> (raw)
In-Reply-To: <45E73DA5.40808@callone.net>
References: <45E6F49D.3010707@callone.net>
	<20070301112948.R45862@megazone.bigpanda.com>
	<45E73DA5.40808@callone.net>

On Thu, 1 Mar 2007, Rob Schall wrote:

> There are 4 entries (wanted to make the playing field level for this
> test). There are 2 with true for istf and 2 with false.

Then analyzing might help, because I think it's estimating many more rows
for both cases, and with 2 rows estimated to be returned the nested loop
should seem a lot more attractive than at 900+.



view thread (6+ messages)  latest in thread

Message-ID: <20070301142004.J53183@megazone.bigpanda.com>
Permalink:  ../20070301142004.J53183@megazone.bigpanda.com/
Also on:    postgresql.org/message-id/20070301142004.J53183@megazone.bigpanda.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: sszabo@megazone.bigpanda.com, rschall@callone.net
  Subject: Re: Identical Queries
  In-Reply-To: <20070301142004.J53183@megazone.bigpanda.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox