Durumdara <durumdara@gmail.com> writes:
> We have a ROLE_MAIN.
> This gave default privileges to all next objects in DB_X to ROLE_X.
> Somebody dropped DB_X, and later he tried to drop ROLE_X.
> But he got errors in PGAdmin.
> ERROR: role "role_x" cannot be dropped because some objects depend on it
> DETAIL: privileges for default privileges on new types belonging to role
> role_main
See DROP OWNED BY.
https://www.postgresql.org/docs/9.6/static/role-removal.html
regards, tom lane