Does any one know if database.schema.table syntax would make it to Release 12?
No. The lack of an entry in the beta release notes (or relevant documentation) and probably the same error when attempting it on version 12 makes this clear.
There is no pending patch or even, IIRC, recent discussion on making this potentially a thing. My understanding is the current architecture of the product makes implementing such a capability prohibitively expensive in terms of both time and risk.
David J.
