Create a new role (currently only superuser
roles are supported).
edgedb [connection-option...] create-superuser-role [OPTIONS] nameedgedb create-superuser-role is a terminal command equivalent to
CREATE ROLE.
See the Common Connection Options. The
create-superuser-role command runs in the database it is
connected to.
The name of the new role.
Set the password for role (read separately from the terminal).
Set the password for role, read from the stdin.
