[postgis-users] Extents

[René F. Viancos S.]

Try with:

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

best regards

2005/10/14, Sean M. Montague <smontague at atsdenver.com>:
>
>
> 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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>



--
René F. Viáncos S.
Director de Geomática y TIC
Vicerrectoría de Investigación y Desarrollo
Universidad de Chile
Tel (56-2) 632 51 15
Cel (56 9) 933 72 66
rviancos at uchile.cl
rviancos at gmail.com
www.investigacion.uchile.cl <http://www.investigacion.uchile.cl>
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