: That's not how the Cartesian Field stuff works, but I think I see what : you are getting at and I would say I'm going to explicitly punt on that : right now. Ultimately, I think when such a case comes up, the FieldType : needs to be configured to be able to determine this information.
I'm fine punting on it -- i don't understand half this stuff anyway -- i just wanted to raise the issue incase someone else said "Ack! ... yes that is a big oversight in the API that will cause problems with X, Y, Z." -Hoss