Someone should try it with postgres. Make a raw speed branch that gets rid of the overhead of mvcc: while querying a database each transaction sees a snapsh

Someone should try it with postgres. Make a raw speed branch that gets rid of the overhead of mvcc: while querying a database each transaction sees a snapshot of data (a database version) as it was some time ago, regardless of the current state of the underlying data https://www.postgresql.org/docs/7.1/mvcc.html