diff --git a/更新日志.md b/更新日志.md
index a060963..ec6a592 100644
--- a/更新日志.md
+++ b/更新日志.md
@@ -4,6 +4,13 @@
 ## v0.11.23
 
 - 增加 ExpressionCallAttribute 特性，实现表达式函数自定义解析；[wiki](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0#%E8%87%AA%E5%AE%9A%E4%B9%89%E8%A1%A8%E8%BE%BE%E5%BC%8F%E5%87%BD%E6%95%B0v01123)
+- 优化 Contains 表达式解析为 where in 自动拆分，防止大于 1000 的 SQL 错误，如下：
+```csharp
+var arr = Enumerable.Range(1, 1333).ToArray();
+var sql = fsql.Select<T>().Where(a => arr.Contains(a.Int)).ToList();
+//原来：where id in (1..1333)
+//现在：where id in (1..500) or id in (501..1000) or id in (1001..1333)
+```
 
 ## v0.11.22
 
diff --git a/表达式函数.md b/表达式函数.md
index 288e180..7edc49a 100644
--- a/表达式函数.md
+++ b/表达式函数.md
@@ -27,6 +27,12 @@ var t1 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToSql();
 //WHERE (a.`Id` in (1,2,3))
 ```
 
+> 已优化，防止 where in 元素多过的 SQL 错误
+
+原来：where id in (1..1333)
+
+现在：where id in (1..500) or id in (501..1000) or id in (1001..1333)
+
 ## 查找今天创建的数据
 
 ```csharp