On Wed, 2008-11-12 at 15:50 +0100, Moritz Lennert wrote: > On 12/11/08 15:05, Nikos Alexandris wrote: > > On Wed, 2008-11-12 at 14:44 +0100, Nikos Alexandris wrote: > >> On Wed, 2008-11-12 at 05:35 +0100, Nikos Alexandris wrote: [...] > > There is a fundamental problem with '-a' if the cat numbers in the two > maps are overlapping, but the attributes linked to these overlapping > numbers are different in the two maps: > [...] > > => attributes 'ten' and 'twenty from map are gone since key fields have > to be unique in attribute tables > > So, unless you are sure that there are not overlapping cat's in the maps > you are planning to patch, steer away from '-a'. > > Moritz
OK, even more clear now. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
