diff --git a/staging-diff.sql b/staging-diff.sql
index 4eba322..f2786a1 100644
--- a/staging-diff.sql
+++ b/staging-diff.sql
@@ -1 +1,20 @@
-UPDATE user SET is_admin=true WHERE name IN ('Sandra Sollberger', 'Thomas Hoffelner', 'Manfred Meindl', 'Bernhard Heinemann');
+ALTER TABLE logbook ADD COLUMN "steering_person" INTEGER NOT NULL DEFAULT 0 REFERENCES user(id);
+UPDATE logbook SET steering_person = shipmaster;
+CREATE TABLE "logbook_temp" (
+	"id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+	"boat_id" INTEGER NOT NULL REFERENCES boat(id),
+	"shipmaster" INTEGER NOT NULL REFERENCES user(id),
+	"steering_person" INTEGER NOT NULL DEFAULT 1 REFERENCES user(id),
+	"shipmaster_only_steering" boolean not null,
+	"departure" datetime not null,
+	"arrival" datetime,
+	"destination" text,
+	"distance_in_km" integer,
+	"comments" text,
+	"logtype" INTEGER REFERENCES logbook_type(id)
+);
+INSERT INTO logbook_temp(id, boat_id, shipmaster, shipmaster_only_steering, departure, arrival, destination, distance_in_km, comments, logtype) SELECT id, boat_id, shipmaster, shipmaster_only_steering, COALESCE(departure, '2000-01-01 00:00:00'), arrival, destination, distance_in_km, comments, logtype FROM logbook;
+DROP TABLE logbook;
+ALTER TABLE logbook_temp RENAME TO logbook;
+
+INSERT INTO rower(rower_id, logbook_id) SELECT shipmaster, id FROM logbook;