[postgis-users] is it possible to dissolve boundaries in postgis?

Patricio Cifuentes Ithal pcifuentes at siigsa.cl
Thu May 4 12:27:38 PDT 2006


Hi nelson,

you question is very good, so, postgis, is tools the only view greografic
(cartografic),

arcgis or arcview is tools the administration, control, and build
cartografic.

-- 

Patricio Cifuentes Ithal
Ingeniero en Informática

Informática
SIIGSA
(56-2) 204 60 22
----- Original Message ----- 
From: "Nelson Guda" <nelsong at mail.utexas.edu>
To: "PostGIS Users Discussion" <postgis-users at postgis.refractions.net>
Sent: Thursday, May 04, 2006 3:09 PM
Subject: [postgis-users] is it possible to dissolve boundaries in postgis?


> Hi all,
>
> Is there a way to dissolve boundaries between adjacent polygons based
> on attributes?  for example, if you have a database of polygons that
> represent all of the counties in the US, a dissolve based on the name
> of the state would result in polygons of all the states.  This is
> possible in ArcGIS, but I haven't figured out a way to do it in postgis.
>
> thanks,
> nelson
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