Update 001-table-tidb_block_browser.sql

mysql/init/001-table-tidb_block_browser.sql

@@ -193,6 +193,7 @@ CREATE TABLE `tb_block` (
   `update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
   PRIMARY KEY (`id`),
   KEY `block_id` (`block_id`),
+  KEY `block_hash` (`block_hash`),
   KEY `validated_hash_index` (`validated_hash`),
   KEY `block_time_index` (`block_time`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin COMMENT='区块信息表';