Dolt was built with MySQL in mind, and we're creating DoltgreSQL with PostgreSQL in mind. We've gotten interest in a "Dolt for Postgres", and so we're finally starting development on that exact thing.
The reason that I am asking is because I have a hard time trusting a newcomer to the database competition. And for purposes off discussion, DoltgreSQL will be a newcomer for the first ten years of its existence. Sharing the underlying storage model with Dolt (still a newcomer, sorry) would greatly increase my confidence in it.
Vitess (Handles Wire Protocol)
go-mysql-server (GMS, Implementation of MySQL featureset)
Dolt GMS interface
Storage Engine
DoltgreSQL, right now, shares the storage engine, interface, and a portion of GMS. This is primarily to get something up and running so that we're able to further iterate on a "working" product (i.e. something we can set up testing for). I envision that GMS will split into three, with a MySQL & PostgreSQL core interacting with a base SQL core. Dolt's GMS interface would then adapt to the base SQL core interface. The storage engine is more-or-less set in stone.