| From: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
|---|---|
| To: | Tim Perdue <tim(at)perdue(dot)net> |
| Cc: | Larry Rosenman <ler(at)lerctr(dot)org>, pgsql-general(at)postgresql(dot)org, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: [SQL] Latitude / Longitude |
| Date: | 2002-09-13 15:19:11 |
| Message-ID: | 3D8201EF.CB5F3BD6@Yahoo.com |
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| Thread: | |
| Lists: | pgsql-general pgsql-sql |
Tim Perdue wrote:
>
> On Thu, Sep 12, 2002 at 12:49:21PM -0500, Larry Rosenman wrote:
> > Look at contrib/earthdistance, I **think** it does what you need.
>
> Thanks, yeah this starts to get me into the realm of what I need. It still
> has to run every possible permutation to figure out which one is closest for
> each postalcode. What I'll do is run that once and build a 3rd table which can
> be used to join the other two together using a view.
That third table should be maintained by triggers and
constraints, no?
Jan
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