> you may for example go from Postgres to a KV store. If its easy to do this then you are using a tiny fraction of Postgres. If you want it to be easy to swit

> you may for example go from Postgres to a KV store. If its easy to do this then you are using a tiny fraction of Postgres. If you want it to be easy to switch your database then you need to code to the lowest common denominator. I would rather use my databases to their fullest potential, rather than purposefully handicap myself because I might have to change it in the future.