" CHANGE COLUMN pop_switch_port device_interface_id VARCHAR(64) NULL AFTER device_id, " \
" CHANGE COLUMN wan_service_endpoint_id service_endpoint_id VARCHAR(256) NOT NULL AFTER device_interface_id, " \
" CHANGE COLUMN wan_service_mapping_info service_mapping_info TEXT NULL AFTER service_endpoint_id, " \
" CHANGE COLUMN pop_switch_port device_interface_id VARCHAR(64) NULL AFTER device_id, " \
" CHANGE COLUMN wan_service_endpoint_id service_endpoint_id VARCHAR(256) NOT NULL AFTER device_interface_id, " \
" CHANGE COLUMN wan_service_mapping_info service_mapping_info TEXT NULL AFTER service_endpoint_id, " \