FWIW there are several horizontally scaleable relational databases out there (Cockroach, Yugabyte) compatible with pg wire protocol. So you can mostly keep your

FWIW there are several horizontally scaleable relational databases out there (Cockroach, Yugabyte) compatible with pg wire protocol. So you can mostly keep your application queries / driver the same and move to a horizontal solution easier than if you were on Oracle. I don't think Oracle has a horizontally scaling solution. Might be wrong though.