Thanks to both of you. Now I have a query like:
SELECT * FROM public.my_table AS part_1, public.my_table AS part_2 WHERE ST_SharedPaths(part_2.wkb_geometry_4326, ST_SnapToGrid(part_1.wkb_geometry_4326, part_2.wkb_geometry_4326, 0.5, 0, 0, 0)) - it seems that ST_Snap(geom, geom, float) doesn't exist at my PostGIS - is it correctly that I have changed it to ST_SnapToGrid, which also requires more float parameters? - it seems also that ST_SharedPath doesn't exist. Did you mean ST_SharedPaths? When I run this query, I get an error: ERROR: function st_sharedpaths(geometry, geometry) does not exist LINE 3: WHERE ST_SharedPaths(part_2.wkb_geometry_4326, ST_SnapToGrid... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. Do I need some other PostGIS version or am I doing it wrong? TIA, Matej 2012/1/21 Sandro Santilli <s...@keybit.net>: > On Sat, Jan 21, 2012 at 02:19:06PM +0100, Andrea Peri wrote: > >> ST_SharedPath(geom1, ST_Snap(geom1, geom2, 0.5)) > > I guess you meant: > > ST_SharedPath(geom2, ST_Snap(geom1, geom2, 0.5)) > > --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 _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users