How can i drop a user as SUPERUSER (!) with all privileges?
According to the docs: http://www.postgresql.org/docs/current/interactive/sql-droprole.html
> A role cannot be removed if it is still referenced in any database of the cluster;
> an error will be raised if so. Before dropping the role, you must drop all the objects
> it owns (or reassign their ownership) and revoke any privileges the role has been
Victor Y. Yegorov
