[postgis-users] Extents

[Josh.Zeckser at jeppesen.com]

It is returning nothing because you likely don't have any single object 
with all three of those IDs. What happens when you use OR instead of AND? 

Josh Zeckser
Data Development Technician
Nobeltec
josh.zeckser at jeppesen.com
503.419.5036

Have you heard about the new Nobeltec InSight Sounder? Visit 
www.nobeltec.com/Products/prod_sounder.asp to learn more.




"Sean M. Montague" <smontague at ATSDenver.com> 
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10/14/2005 03:21 PM
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Subject
[postgis-users] Extents







I need to return the extent or multiple geometries, I tried the below
statement, but it returned nothing.  Is there a way to return the extent
of the combined extents?  Thanks

Sean

SELECT EXTENT(the_geom)
>From trails_02a
WHERE objectid = 1 AND objectid = 2 AND objectid = 3;
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