This is very cool! Couple of suggestions:

- Don't use "mysql" in the name, this is a trademark of Oracle corporation and they can very easily sue you personally if they want to, especially since you're using it to develop a competing database product. Other products getting away with it doesn't mean they won't set their sights on you. This is just my suggestion and you can ignore it if you want to.

- Postgres wire/sql compatibility. Postgres is for some reason becoming the relational king so implementing some support sooner rather than later increases your projects relevance.