Interesting list. I think the items related to schema migrations are probably bad ideas, as the logic and process around even simple schema migrations can be ex

Interesting list. I think the items related to schema migrations are probably bad ideas, as the logic and process around even simple schema migrations can be extremely complex and varied. It seems much better to keep this as an external component than to build features into the db engine around a narrow set of approaches. I like several of the other ideas, though. Branching is at least partially implemented in other RDBMSes. MS SQL Server has been able to do instant read-only database snapshots (which capture a point in time and can be queried just like the original DB) for decades.