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Date: Thu, 1 Mar 2007 14:23:08 -0800 (PST)
From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Rob Schall <rschall@callone.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: Identical Queries
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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+.