diff --git a/sql/bcnftdb.sql b/sql/bcnftdb.sql
index 67546889..608b3d46 100644
--- a/sql/bcnftdb.sql
+++ b/sql/bcnftdb.sql
@@ -29,6 +29,7 @@ DROP TABLE IF EXISTS `t_nft`;
 CREATE TABLE `t_nft` (
   `idx` bigint NOT NULL AUTO_INCREMENT COMMENT '自增id',
   `owner_address` varchar(60) NOT NULL DEFAULT '' COMMENT 'owner_address',
+  `last_owner_address` varchar(60) COMMENT 'last_owner_address',
   `creator_address` varchar(60) NOT NULL DEFAULT '' COMMENT 'creator_address',
   `token_id` varchar(60) NOT NULL DEFAULT '' COMMENT 'token_id',
   `token_type` int(11) NOT NULL DEFAULT '0' COMMENT 'nft类型 1:英雄 2:枪支 3:芯片 6:荣誉 7:徽章',
@@ -46,6 +47,8 @@ CREATE TABLE `t_nft` (
   UNIQUE KEY `unikey` (`net_id`, `contract_address`, `token_id`),
   KEY `owner_address_token_type` (`owner_address`, `token_type`),
   KEY `owner_address_contract_address` (`owner_address`, `contract_address`),
+  KEY `idx_net_id_token_type_owner_address_last_owner_address` (`net_id`, `token_type`, `owner_address`, `last_owner_address`),
+  KEY `idx_last_owner_address` (`last_owner_address`),
   KEY `owner_address` (`owner_address`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10001 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
 /*!40101 SET character_set_client = @saved_cs_client */;