Add unit test

Src/Asp.Net/SqlServerTest/SqlServerTest.csproj

@@ -94,6 +94,7 @@
     <Compile Include="Models\OrderItem.cs" />
     <Compile Include="Demo\Demo0_SqlSugarClient.cs" />
     <Compile Include="Models\ViewOrder.cs" />
+    <Compile Include="UnitTest\UDelete.cs" />
     <Compile Include="UnitTest\UFastest.cs" />
     <Compile Include="UnitTest\USplit.cs" />
     <Compile Include="UnitTest\Models\TB_AdminUser.cs" />

Src/Asp.Net/SqlServerTest/UnitTest/Main.cs

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            DeleteTest();
             Fastest2();
             SplitTest();
             Filter();

Src/Asp.Net/SqlServerTest/UnitTest/UDelete.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public partial class NewUnitTest
+    {
+
+        public static void DeleteTest() 
+        {
+            Db.CodeFirst.InitTables<UnitDel12311>();
+            var list = new List<UnitDel12311>() {
+              new UnitDel12311(){
+                  Date1=DateTime.Now,
+                   ID=Guid.NewGuid(),Name="a"
+              },
+                new UnitDel12311(){
+                  Date1=DateTime.Now,
+                   ID=Guid.NewGuid(),Name="a"
+              }
+            };
+            var db = Db;
+            //db.CurrentConnectionConfig.MoreSettings = new SqlSugar.ConnMoreSettings()
+            //{
+            //     DisableNvarchar=true
+            //};
+            db.Insertable(list).ExecuteCommand();
+            var r= db.Deleteable(list).ExecuteCommand();
+            if (r == 0) 
+            {
+                throw new Exception("unit test delete");
+            }
+        }
+        public class UnitDel12311 
+        {
+            [SqlSugar.SugarColumn(IsPrimaryKey =true)]
+            public Guid ID { get; set; }
+            [SqlSugar.SugarColumn(IsPrimaryKey = true)]
+            public DateTime Date1 { get; set; }
+            public string Name { get; set; }
+        }
+    }
+}

Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs

@@ -160,6 +160,10 @@ namespace SqlSugar
                         {
                             andString.AppendFormat("\"{0}\"={1} ", primaryField.ToLower(), new PostgreSQLExpressionContext().GetValue(entityValue));
                         }
+                        else if (entityValue != null && UtilMethods.GetUnderType(entityValue.GetType()) == UtilConstants.DateType) 
+                        {
+                            andString.AppendFormat("\"{0}\"={1} ", primaryField,$"'{entityValue.ObjToDate().ToString("yyyy-MM-dd HH:mm:ss.fff")}'");
+                        }
                         else
                         {
                             andString.AppendFormat(tempequals, primaryField, entityValue);