add: mml object type

database/upgvue3/zupgrade.sql

@@ -180,4 +180,7 @@ VALUES (
 ALTER TABLE `omc_db`.`alarm`
 ADD INDEX IF NOT EXISTS `idx_severity_status` (
     `alarm_status`, `orig_severity`
-) USING BTREE; 
+) USING BTREE; 
+
+ALTER TABLE `omc_db`.`mml_system`
+ADD COLUMN IF NOT EXISTS `object_type` varchar(16) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT 'mml' AFTER `mml_display`;