-- The licences a person has said not to use. Models under them are not
-- listed to the person, nor served to their keys or their sessions: a
-- game sold in the EU cannot ship what a licence excluding the EU made.
CREATE TABLE user_excluded_licences (
  user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
  licence TEXT NOT NULL,
  PRIMARY KEY (user_id, licence)
);