Thanks for the feedback. Good points, we'll improve the README.
Regarding your questions:
1. It's currently only for SQL statements, but we'll work on function bodies and PL/pgSQL soon. 2. Exactly, we follow the the PostgreSQL dialect (we use Postgres's parser) 3. You can give it a database connection and it will query some pg_catalog tables. If you don't provide connection details, we'll bypass features requiring that.
> You can give it a database connection and it will query some pg_catalog tables. If you don't provide connection details, we'll bypass features requiring that.
It'd be nice if users could manually obtain and provided that information.