diff --git a/sql/relationdb_n.sql b/sql/relationdb_n.sql
index 11be56a..ea353ef 100644
--- a/sql/relationdb_n.sql
+++ b/sql/relationdb_n.sql
@@ -125,7 +125,8 @@ CREATE TABLE `event` (
   `status` int(11) NOT NULL DEFAULT '0' COMMENT '0:未处理 1:已处理',
   `createtime` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   PRIMARY KEY (`idx`),
-  KEY `account_id` (`account_id`)
+  KEY `sender_id` (`sender_id`),
+  KEY `target_id` (`target_id`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
 /*!40101 SET character_set_client = @saved_cs_client */;
 /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;