diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index deba7e3e9..213e7351f 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -79,6 +79,7 @@
     <Compile Include="Models\ViewOrder.cs" />
     <Compile Include="UnitTest\UQueue.cs" />
     <Compile Include="_OldTest\BugTest\Bug2.cs" />
+    <Compile Include="_OldTest\BugTest\Bug4.cs" />
     <Compile Include="_OldTest\BugTest\BugModels\AccountsModel.cs" />
     <Compile Include="_OldTest\BugTest\BugModels\ClientsModel.cs" />
     <Compile Include="_OldTest\BugTest\BugModels\ExposureModel.cs" />
diff --git a/Src/Asp.Net/SqlServerTest/_OldTest/BugTest/Bug4.cs b/Src/Asp.Net/SqlServerTest/_OldTest/BugTest/Bug4.cs
new file mode 100644
index 000000000..f6cd7b7c3
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/_OldTest/BugTest/Bug4.cs
@@ -0,0 +1,46 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Test
+{
+    public class BugTest4
+    {
+        public static void Init()
+        {
+            SqlSugarClient Db = new SqlSugarClient(new ConnectionConfig()
+            {
+                ConnectionString = Config.ConnectionString,
+                DbType = DbType.SqlServer,
+                IsAutoCloseConnection = true,
+                //MoreSettings = new ConnMoreSettings()
+                //{
+                //    PgSqlIsAutoToLower = true //我们这里需要设置为false
+                //},
+                InitKeyType = InitKeyType.Attribute,
+            });
+            //调式代码 用来打印SQL 
+            Db.Aop.OnLogExecuting = (sql, pars) =>
+            {
+                Console.WriteLine(sql);
+            };
+
+            Db.CodeFirst.InitTables(typeof(Testmmm));
+            Db.Insertable(new Testmmm() { b = "a" }).InsertColumns(it => new { it.b}).ExecuteCommand();
+            var list = Db.Queryable<Testmmm>().ToList();
+        }
+        public class Testmmm {
+            [SugarColumn(IsIdentity =true,IsPrimaryKey =true)]
+            public int id { get; set; }
+            [SugarColumn(ColumnDataType ="nvarchar",Length =8, DefaultValue ="222", ColumnDescription ="aa")]
+             public string a { get; set; }
+             public string b { get; set; }
+        }
+    }
+   
+
+}