Hi.Not sure how to do ST_UNION, for creating i.e. the outer borders for continents from the country borders. I have the country borders, and i have a field to which continent the country belongs.
SELECT ST_Union(the_geom) FROM world_level_1 GROUP BY continentid for sure doesn't work... Anybody? Kindly regards, Frank _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
