Using v.dissolve in GRASS, I'd like to get a multipolyon as a result. However, I end up with distinct polygons with the same 'dissolve value.'
For example; lets assume I have two polygon features which are not touching each other spatially. Both have a 'DISS" value of 1. If I run v.dissolve on this DISS value, I get the same thing in the output as the input (i.e. two seperate polygons with a DISS value of 1). What I would like to be able to get is an output that contains one single multipolygon. How do I go about this?