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From: Tomasz Myrta <jasiek@klaster.net>
To: Scott Ding <scott.ding@autodesk.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: point <-> polygon not supported?
Date: Thu, 20 Feb 2003 18:05:58 +0100
Message-ID: <3E550AF6.6060203@klaster.net> (raw)
References: <E8EF167E598AD74381DD26B7F315098A1C9892@msgpetmb1.amer.ads.autodesk.com>

Scott Ding wrote:
> Tomasz,
> 
> Thanks for the tip. What I want to do is something like the following:
> 
> Select * from table where (table.geom <-> polygon('((3,3), (3,4), (4,5),
> (5,4), (5,3))')) < 1.0);
> 
> Table.geom is a point column.
I have never user geometric types...
I think, you can use some data type, which can be used for counting 
distance, for example circle:

Select * from table where (circle(table.geom,0) <-> polygon('((3,3), 
(3,4), (4,5), (5,4), (5,3))')) < 1.0);

Regards,
Tomasz Myrta




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