6.0 Schema

Informix people of the world, I might have missed this discussion earlier on the net? With the release of the new OnLine Informix engine ver6.0, giving us the power to perform massive, cascading deletes and updates at our finger tips , a few new questions concerning the database schema come to mind. - Are we assigning the modeling aspects of the PK and FK physically to columns when we build our tables. If not how will they be identified, by name? - Can this cascading traverse databases,platforms,stars..? - Are there guards that could be set against these types of deletions or updates? (besides database,table ownership) If so, are there different levels of guards that could be implemented? - Does informix have any intention of coming out with "any" enhanced modeling tools that could be used along with the engine? The types of examples I'm thinking of are modeling case tools that have been developed by IEF... Thanx for any information, Mikea Boise HP mikea@boi.hp.com