diff --git a/README.md b/README.md
index 49bc8f2..fcf304c 100644
--- a/README.md
+++ b/README.md
@@ -264,8 +264,7 @@ public class ChangeLogContext {
 
 ```mysql
 DROP TABLE IF EXISTS `your_table_name`;
-CREATE TABLE `your_table_name`
-(
+CREATE TABLE `your_table_name` (
     `guid`         bigint(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT 'GUID',
     -- ----------------------------
     -- add your table other table field
@@ -277,16 +276,35 @@ CREATE TABLE `your_table_name`
     `create_time`  datetime(0)        NOT NULL DEFAULT CURRENT_TIMESTAMP(0) COMMENT '创建时间',
     `update_time`  datetime(0)        NOT NULL DEFAULT CURRENT_TIMESTAMP(0) COMMENT '更新时间',
     PRIMARY KEY (`guid`) USING BTREE,
-    -- UNIQUE KEY `idx_unique_key` (`you unique key`,`delete_token`) USING BTREE,
+    KEY `idx_common_query` (`is_hidden`, `is_delete`, `create_time` desc, `guid`) USING BTREE
+) ENGINE = InnoDB COMMENT = '你的表格备注'
+  ROW_FORMAT = Dynamic;
+```
+
+### 索引优化指南
+
+唯一键索引：
+
+```
+UNIQUE KEY `idx_unique_key` (`you unique key`,`delete_token`) USING BTREE,
     -- KEY `idx_common_query` (
     -- 等值查询字段,
     -- `is_hidden`,`is_delete`,
     -- 其他参与排序字段,
     -- `create_time` desc,
     -- `guid`) USING BTREE
-    KEY `idx_common_query` (`is_hidden`, `is_delete`, `create_time` desc, `guid`) USING BTREE
-) ENGINE = InnoDB COMMENT = '你的表格备注'
-  ROW_FORMAT = Dynamic;
+```
+
+查询索引：
+
+```
+KEY `idx_common_query` (
+    -- 等值查询字段,
+    `is_hidden`,`is_delete`,
+    -- 其他参与排序字段,
+    `create_time` desc,
+    `guid`
+) USING BTREE
 ```
 
 **必需字段说明**：