diff --git a/Src/Asp.Net/PgSqlTest/PgSqlTest.csproj b/Src/Asp.Net/PgSqlTest/PgSqlTest.csproj
index 303b3bf3a..3d4e04b5a 100644
--- a/Src/Asp.Net/PgSqlTest/PgSqlTest.csproj
+++ b/Src/Asp.Net/PgSqlTest/PgSqlTest.csproj
@@ -104,6 +104,7 @@
     <Compile Include="Models\ViewOrder.cs" />
     <Compile Include="Config.cs" />
     <Compile Include="UnitTest\UInsert3.cs" />
+    <Compile Include="UnitTest\ULock.cs" />
     <Compile Include="UnitTest\Unit001.cs" />
     <Compile Include="UnitTest\UnitByteArray.cs" />
     <Compile Include="UnitTest\UnitPgSplit.cs" />
diff --git a/Src/Asp.Net/PgSqlTest/UnitTest/Main.cs b/Src/Asp.Net/PgSqlTest/UnitTest/Main.cs
index 840d3cc37..b7fc3bb8a 100644
--- a/Src/Asp.Net/PgSqlTest/UnitTest/Main.cs
+++ b/Src/Asp.Net/PgSqlTest/UnitTest/Main.cs
@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            ULock.Init();
             UInsert3.Init();
             UnitSubToList.Init();
             UnitByteArray.Init();
diff --git a/Src/Asp.Net/PgSqlTest/UnitTest/ULock.cs b/Src/Asp.Net/PgSqlTest/UnitTest/ULock.cs
new file mode 100644
index 000000000..c7bd2cf09
--- /dev/null
+++ b/Src/Asp.Net/PgSqlTest/UnitTest/ULock.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest 
+{
+    public class ULock
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            db.CodeFirst.InitTables<ULockEntity>();
+            db.DbMaintenance.TruncateTable<ULockEntity>();
+            var dt= DateTime.Now;
+            var id=db.Insertable(new ULockEntity()
+            {
+                Name = "oldName",
+                Ver= dt
+            }).ExecuteReturnIdentity();
+
+            var data = db.Updateable(new ULockEntity()
+            {
+                Id = id,
+                Ver= DateTime.Now,
+                Name = "newname",
+           
+            }).ExecuteCommandWithOptLock();
+            if (data != 1) { throw new Exception("unit error"); };
+            var data2 = db.Updateable(new ULockEntity()
+            {
+                Id = id,
+                Name = "newname2",
+ 
+            }).ExecuteCommandWithOptLock();
+            if (data2 != 0) { throw new Exception("unit error"); };
+
+            var data3 = db.Updateable(new ULockEntity()
+            {
+                Id = id,
+                Name = "newname2",
+           
+            })
+            .UpdateColumns(z=>z.Name).ExecuteCommandWithOptLock();
+            if (data3 != 0) { throw new Exception("unit error"); }
+            var ver = db.Queryable<ULockEntity>().InSingle(id);
+            var data4 = db.Updateable(new ULockEntity()
+            {
+                Id = id,
+                Name = "newname2",
+                Ver = ver.Ver
+            })
+            .UpdateColumns(z => z.Name).ExecuteCommandWithOptLock();
+            if (data4 != 1) { throw new Exception("unit error"); }
+        }
+
+        public class ULockEntity
+        {
+            [SqlSugar.SugarColumn(IsPrimaryKey =true,IsIdentity =true)]
+            public int Id { get; set; }
+            public string Name { get; set; }
+            [SqlSugar.SugarColumn(IsEnableUpdateVersionValidation  = true, ColumnDataType ="timestamp" )]
+            public DateTime Ver { get; set; }
+        }
+    }
+}