ALTER TABLE vn.supplier
    CHANGE companySize companySize enum('small','medium','big') CHARACTER SET utf8mb3
        COLLATE utf8mb3_general_ci DEFAULT NULL NULL AFTER stamp,
    ADD geoFk int(11) DEFAULT NULL NULL AFTER companySize,
    ADD CONSTRAINT supplier_zoneGeo_FK FOREIGN KEY (geoFk)
            REFERENCES vn.zoneGeo(id) ON DELETE RESTRICT ON UPDATE CASCADE;