Markus Schaber wrote: > [...] > Could you try > > UPDATE geotable SET geom=dropbbox(geom); > > and tell us whether your problem remains? > thanks a lot, it works .... ;-) but in this case it shouldn't it work for the select-query as well ? the bbox is not a value, which is directly stored in the table or visible for the user respectively. but ok, good to know ronald