[postgis-users] find single bbox of multiple objects

[Obe, Regina]

What about extent
SELECT extent(the_geom) from yourtable where id IN(1,2,3)

________________________________

From: postgis-users-bounces at postgis.refractions.net on behalf of Richard Greenwood
Sent: Sat 3/31/2007 2:05 PM
To: PostGIS Users Discussion
Subject: [postgis-users] find single bbox of multiple objects



I need to find the bounding box (minimum bounding rectangle) of a
group of objects. I am trying things like:
   select box(the_geom) where id in (1, 2, 3);
Which gives me 3 boxes. But I want a single box representing the
bounds of all three objects.

Thanks,
Rich

--
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com
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