diff --git a/sql/relationdb_n.sql b/sql/relationdb_n.sql
index 9881526..d14fcc9 100644
--- a/sql/relationdb_n.sql
+++ b/sql/relationdb_n.sql
@@ -92,7 +92,7 @@ CREATE TABLE `guild` (
   `gameid` int(11) NOT NULL DEFAULT '0' COMMENT 'gameid',
   `channel` int(11) NOT NULL DEFAULT '0' COMMENT 'channel',
   `guild_id` bigint NOT NULL COMMENT '公会id',
-  `guild_name` tinyblob COMMENT '公会名字',
+  `guild_name` varchar(128) CHARACTER SET utf8mb4 NOT NULL COMMENT 'guild';
   `guild_lv` int(11) NOT NULL DEFAULT '0' COMMENT '公会等级',
   `guild_exp` double NOT NULL DEFAULT '0' COMMENT '公会经验',
   `guild_badge` int(11) NOT NULL DEFAULT '0' COMMENT '公会徽章',
@@ -117,6 +117,7 @@ CREATE TABLE `guild` (
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
   UNIQUE KEY `guild_id` (`guild_id`),
+  UNIQUE KEY `guild_name` (`guild_name`),
   KEY `owner_id` (`owner_id`),
   KEY `creator_id` (`creator_id`),
   KEY `modifytime` (`modifytime`)