The MVCC implementation inside Postgres is probably not the greatest, in terms of overall performance. This is a good read https://db.cs.cmu.edu/papers/2017/p7

The MVCC implementation inside Postgres is probably not the greatest, in terms of overall performance. This is a good read https://db.cs.cmu.edu/papers/2017/p781-wu.pdf https://db.cs.cmu.edu/papers/2017/p781-wu.pdf "Postgres ... configurations lead to the worst performance, and the major reason is that the use of append-only storage with O2N ordering severely restricts the scalability of the system.... "