sql: 更新时UE数据表删除重建

database/install/ue_event_amf.sql

@@ -9,7 +9,7 @@ CREATE TABLE `ue_event_amf` (
   `ne_name` varchar(64) COLLATE utf8mb4_general_ci DEFAULT NULL,
   `rm_uid` varchar(32) COLLATE utf8mb4_general_ci DEFAULT NULL,
   `timestamp` int DEFAULT NULL,
-  `event_type` varchar(16) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT 'auth-result/detach/cm-state',
+  `event_type` varchar(16) COLLATE utf8mb4_general_ci DEFAULT '' COMMENT 'auth-result/detach/cm-state',
   `event_json` longtext COLLATE utf8mb4_general_ci,
   `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`) USING BTREE,