-- Close the world road loop: last town connects back to the first (and reverse).
-- Town ids: 1 Willowdale .. 7 Starfall (see 000006 / 000015). Distance is approximate; runtime recomputes from waypoints.

INSERT INTO roads (from_town_id, to_town_id, distance) VALUES
    (7, 1, 4000.0),
    (1, 7, 4000.0)
ON CONFLICT (from_town_id, to_town_id) DO NOTHING;