I meant MVCC is the proof that you can automate the transform of a schema into a versioned schema. How and if the DBMS exposes that is another concern.
The garbage collection / VACUUM part of an MVCC system is the harder part, saving all versions and querying a point in time is the easy one.
The garbage collection / VACUUM part of an MVCC system is the harder part, saving all versions and querying a point in time is the easy one.