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From: Dan Harris <fbsd@drivefaster.net>
To: PostgreSQL Performance <pgsql-performance@postgresql.org>
Subject: Re: Help optimizing a slow index scan
Date: Fri, 17 Mar 2006 08:34:26 -0700
Message-ID: <441AD702.9020508@drivefaster.net> (raw)
In-Reply-To: <684362e10603161915x431c6b08t@mail.gmail.com>
References: <4419DB50.10404@drivefaster.net>
	<4419DC1C.9070806@drivefaster.net>
	<684362e10603161915x431c6b08t@mail.gmail.com>

Markus Bertheau wrote:
> Have you tried using a GIST index on lat & long? These things are
> meant for two-dimensional data, whereas btree doesn't handle
> two-dimensional data that well. How many rows satisfy either of the
> long / lat condition?
>
>   
>>     
According to the analyze, less than 500 rows matched.  I'll look into 
GIST indexes, thanks for the feedback.

-Dan



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