On 18 August 2010 20:05, salas <[email protected]> wrote: > Hi, i have the parcels table , and select various polygon > > ¿ how i can obtain the boundary of this group?
Try: SELECT St_Envelope(St_Union(my_geometry_column)) FROM parcels; Omit the 'St_Envelope(...)' bit if you want a multipolygon comprised of all polygons rather than a bounding box. Will _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
