pluggable database support (ex.: supporting SQLite3)

[TheBojda]

It would be good feature, if the engine doesn't depend on the database backend. As I've seen, your architecture is well layered, and won't be a big development, to make the database engine pluggable, and support other backends, like SQLlite.

[mstdokumaci]

My first choice was Postgre to implement, i don't know why :)