Hello Sandro,
Thanks and yes my mistake, I have 2 tables by mistake, ie., 'unaprueba' and 'testone', the first one is the right one, this is what I get after your suggestion: mop=# \d unaprueba Table "public.unaprueba" Column | Type | Modifiers --------+----------+----------- id | smallint | geom | geometry | Indexes: "unaprueba_geom" gist (geom) Check constraints: "enforce_dims_geom" CHECK (st_ndims(geom) = 2) "enforce_geotype_geom" CHECK (geometrytype(geom) = 'POLYGON'::text OR geom IS NULL) "enforce_srid_geom" CHECK (st_srid(geom) = 4326) mop=# SELECT st_geometrytype(st_convexhull(st_collect(geom))) from splitbeam_point ; st_geometrytype ----------------- ST_Polygon (1 row) So, I think everything should be right, I dont know why this commad doesnt work: mop=# insert into unaprueba (geom) SELECT st_convexhull(st_collect(geom)) as geom FROM splitbeam_point ; ERROR: new row for relation "unaprueba" violates check constraint "enforce_dims_geom" where could be the problem? Gery ---------------------------------------- > Date: Thu, 20 Oct 2011 10:15:41 +0200 > From: s...@keybit.net > To: postgis-users@postgis.refractions.net > CC: gameji...@hotmail.com > Subject: Re: [postgis-users] FW: Support in ST_ConvexHull syntax > > On Wed, Oct 19, 2011 at 06:03:27PM +0000, Gery . wrote: > > > mop=# insert into testone (geom) SELECT ST_ConvexHull(ST_Collect(geom)) as > > geom FROM splitbeam_point ; > > ERROR: new row for relation "unaprueba" violates check constraint > > "enforce_geotype_geom" > > > > where could be the error? any hint is very grateful, thanks in advance > > The error says that the "geom" field of "unaprueba" table is required > to be a geometry of a given type and you're trying to insert one of > a different type instead. > > -- shows what type is expected by the table: > \d unaprueba > > -- shows what you're trying to insert: > SELECT ST_GeometryType( > ST_ConvexHull(ST_Collect(geom)) FROM splitbeam_point ; > ); > > --strk; > > () Free GIS & Flash consultant/developer > /\ http://strk.keybit.net/services.html _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users