>>universes.


>>Dmitry

Then i do not know who can take risk that user1 in one "universe" (product) at present day have e.g. two schemas and user2 have onother schema 

and in the future user2 take decision to create another schema for separation and call it the same as user1 ...

I see separation of one vendor inside one database and where user1 and user2 is the same vendor and know about database as a whole.

regards,

Karol Bieniaszewski