Adding a backend

[McModknower]

I want to use Owlready2 as a frontend for interacting with the ontologies loaded in knowrob. I have already seen this post from someone else, but i can't find the postgresql database driver in the git history. The triplelite.py driver and the abstract base class don't have much documentation about how it is implemented, so before i go and try to read and understand the code there, i wanted to ask:
Is there any similar project or some documentation about implementing a driver that i overlooked?

[Jiba]

Hello,
Owlready no longer support multiple backends. They were complex to maintain, and the PostgresQL backend offered very low performance compared to SQLite (about 10 times slower), because PostgresQL runs in a separate process while SQLite runs in the Python process.
Jiba