I wonder if someone can point me in the right direction on using databases with GRASS. I've read the WIKI pages, the command documentation and whatever else I could find. I understand that you can store, for example, point data in a GRASS native file, while the attributes are stored in an external DB (which I have achieved with mysql). I'm unclear on the following:
1) Is it possible to store geometry in an external database as well?
2) How do you get geometry into an external database?
3) What is the advantage of using an external database over GRASS's internal db?