From: Bruno Wolff III <bruno@wolff.to>
To: Larry Rosenman <ler@lerctr.org>
Cc: Tim Perdue <tim@perdue.net>
Cc: pgsql-general@postgresql.org
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] Latitude / Longitude
Date: Thu, 12 Sep 2002 14:46:51 -0500
Message-ID: <20020912194651.GA9901@wolff.to> (raw)
In-Reply-To: <1031852961.380.20.camel@lerlaptop.iadfw.net>
References: <20020912124426.A27570@mail.perdue.net>
<1031852961.380.20.camel@lerlaptop.iadfw.net>
On Thu, Sep 12, 2002 at 12:49:21 -0500,
Larry Rosenman <ler@lerctr.org> wrote:
> Look at contrib/earthdistance, I **think** it does what you need.
There isn't an index for the distance operator. You can use boxes to
limit the candidates if there is a small bound on how far apart points
can be before they are no longer candidates for a match even if they
are a nearest neighbor pair.
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To: pgsql-sql@postgresql.org
Cc: bruno@wolff.to, ler@lerctr.org, tim@perdue.net, pgsql-general@postgresql.org
Subject: Re: [SQL] Latitude / Longitude
In-Reply-To: <20020912194651.GA9901@wolff.to>
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