[GRASS-user] [GRASS-dev] R: Problems in adding tables to a map

[Markus Neteler]

On Sat, Nov 24, 2012 at 11:31 AM, Moritz Lennert
<mlennert at club.worldonline.be> wrote:
> Sure it does. v.category op=add layer=2 ... will create a new map with the
> old category values preserved in layer 1 and with new category values in
> layer 2. And as mentioned in a previous mail, in GRASS7 you can simply copy
> the category values of layer 1 to layer 2 with op=transfer.

I start to like this function (hint hint :)
I quickly compared the two main files and it doesn't look like
complicated to backport.
However, I cannot judge if it would have any background complications.

Markus