diff --git a/sql/gamedb.sql b/sql/gamedb.sql
index 7824589..ee536e5 100644
--- a/sql/gamedb.sql
+++ b/sql/gamedb.sql
@@ -292,8 +292,9 @@ CREATE TABLE `buy_his` (
   `itemid` int(11) NOT NULL DEFAULT '0' COMMENT 'itemid',
   `sum_times` int(11) NOT NULL DEFAULT '0' COMMENT '累计充值次数',
   `today_times` int(11) NOT NULL DEFAULT '0' COMMENT '今日充值次数',
-  `create_time`   int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
-  `modify_time`   int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
+  `last_buy_time` int(11) NOT NULL DEFAULT '0' COMMENT '最后购买时间',
+  `create_time` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
+  `modify_time` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
   KEY `accountid` (`accountid`),
   UNIQUE KEY `accountid_itemid` (`accountid`, `itemid`)
@@ -313,8 +314,9 @@ CREATE TABLE `orderinfo` (
   `create_time`   int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',
   `modify_time`   int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   PRIMARY KEY (`idx`),
+  UNIQUE KEY `orderid` (`orderid`),
   KEY `accountid` (`accountid`),
-  UNIQUE KEY `orderid` (`orderid`)
+  KEY `accountid_itemid` (`accountid`, `itemid`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10001 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
 
 DROP TABLE IF EXISTS `vipinfo`;