ALTER TABLE Person ADD COLUMN city TEXT NOT NULL DEFAULT '';
ALTER TABLE Person ADD COLUMN addr_state TEXT NOT NULL DEFAULT '';
-ALTER TABLE Person MODIFY COLUMN country INT(11) NOT NULL DEFAULT 0;
-ALTER TABLE Person MODIFY COLUMN city INT(11) NOT NULL DEFAULT 0;
+ALTER TABLE Person DROP COLUMN country;
+ALTER TABLE Person DROP COLUMN city;
+
+ALTER TABLE Person ADD COLUMN country_id INT(11) NOT NULL DEFAULT 0;
+ALTER TABLE Person ADD COLUMN city_id INT(11) NOT NULL DEFAULT 0;
# old mysql