diff --git a/sql/n9e.sql b/sql/n9e.sql
index 63be4eb8..aca23cbd 100644
--- a/sql/n9e.sql
+++ b/sql/n9e.sql
@@ -321,8 +321,6 @@ CREATE TABLE `history_alert_event` (
   `rule_id` bigint unsigned not null,
   `rule_name` varchar(255) not null,
   `rule_note` varchar(512) not null default 'alert rule note',
-  `processor_uid` bigint not null default 0,
-  `event_note` varchar(512) not null default 'alert event note',
   `res_classpaths` varchar(1024) not null default '' COMMENT 'belong classpaths',
   `priority` tinyint(1) not null,
   `status` tinyint(1) not null,