- 适配 FreeSql.Provider.MySqlConnector，和它对应的266个单元测试；

FreeSql.Tests.Provider.MySqlConnector/FreeSql.Tests.Provider.MySqlConnector.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="xunit" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Extensions\FreeSql.Extensions.LazyLoading\FreeSql.Extensions.LazyLoading.csproj" />
+    <ProjectReference Include="..\FreeSql\FreeSql.csproj" />
+    <ProjectReference Include="..\Providers\FreeSql.Provider.MySqlConnector\FreeSql.Provider.MySqlConnector.csproj" />
+  </ItemGroup>
+
+</Project>

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlDeleteTest.cs

@@ -0,0 +1,87 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlDeleteTest {
+
+		IDelete<Topic> delete => g.mysql.Delete<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+
+		[Fact]
+		public void Dywhere() {
+			Assert.Null(g.mysql.Delete<Topic>().ToSql());
+			var sql = g.mysql.Delete<Topic>(new[] { 1, 2 }).ToSql();
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1 OR `Id` = 2)", sql);
+
+			sql = g.mysql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1)", sql);
+
+			sql = g.mysql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1 OR `Id` = 2)", sql);
+
+			sql = g.mysql.Delete<Topic>(new { id = 1 }).ToSql();
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1)", sql);
+		}
+
+		[Fact]
+		public void Where() {
+			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1)", sql);
+
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (id = @id)", sql);
+
+			var item = new Topic { Id = 1, Title = "newtitle" };
+			sql = delete.Where(item).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			sql = delete.Where(items).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))", sql);
+		}
+		[Fact]
+		public void WhereExists() {
+
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+
+			var id = g.mysql.Insert<Topic>(new Topic { Title = "xxxx" }).ExecuteIdentity();
+			Assert.Equal(1, delete.Where(a => a.Id == id).ExecuteAffrows());
+		}
+		[Fact]
+		public void ExecuteDeleted() {
+
+			//delete.Where(a => a.Id > 0).ExecuteDeleted();
+		}
+
+		[Fact]
+		public void AsTable() {
+			Assert.Null(g.mysql.Delete<Topic>().ToSql());
+			var sql = g.mysql.Delete<Topic>(new[] { 1, 2 }).AsTable(a => "TopicAsTable").ToSql();
+			Assert.Equal("DELETE FROM `TopicAsTable` WHERE (`Id` = 1 OR `Id` = 2)", sql);
+
+			sql = g.mysql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).AsTable(a => "TopicAsTable").ToSql();
+			Assert.Equal("DELETE FROM `TopicAsTable` WHERE (`Id` = 1)", sql);
+
+			sql = g.mysql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).AsTable(a => "TopicAsTable").ToSql();
+			Assert.Equal("DELETE FROM `TopicAsTable` WHERE (`Id` = 1 OR `Id` = 2)", sql);
+
+			sql = g.mysql.Delete<Topic>(new { id = 1 }).AsTable(a => "TopicAsTable").ToSql();
+			Assert.Equal("DELETE FROM `TopicAsTable` WHERE (`Id` = 1)", sql);
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlInsertTest.cs

@@ -0,0 +1,135 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlInsertTest {
+
+		IInsert<Topic> insert => g.mysql.Insert<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestEnumInsertTb {
+			[Column(IsIdentity = true)]
+			public int id { get; set; }
+			public TestEnumInserTbType type { get; set; }
+			public DateTime time { get; set; } = new DateTime();
+		}
+		enum TestEnumInserTbType { str1, biggit, sum211 }
+ 
+		[Fact]
+		public void AppendData() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			var sql = insert.AppendData(items.First()).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`, `Title`, `CreateTime`) VALUES(@Clicks_0, @Title_0, @CreateTime_0)", sql);
+
+			sql = insert.AppendData(items).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`, `Title`, `CreateTime`) VALUES(@Clicks_0, @Title_0, @CreateTime_0), (@Clicks_1, @Title_1, @CreateTime_1), (@Clicks_2, @Title_2, @CreateTime_2), (@Clicks_3, @Title_3, @CreateTime_3), (@Clicks_4, @Title_4, @CreateTime_4), (@Clicks_5, @Title_5, @CreateTime_5), (@Clicks_6, @Title_6, @CreateTime_6), (@Clicks_7, @Title_7, @CreateTime_7), (@Clicks_8, @Title_8, @CreateTime_8), (@Clicks_9, @Title_9, @CreateTime_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Title`) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211, time = DateTime.Now }).ToSql();
+			Assert.Equal("INSERT INTO `TestEnumInsertTb`(`type`, `time`) VALUES(@type_0, @time_0)", sql);
+
+			sql = g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211 }).NoneParameter().ToSql();
+			Assert.Equal("INSERT INTO `TestEnumInsertTb`(`type`, `time`) VALUES('sum211', '0001-01-01 00:00:00.000')", sql);
+		}
+
+		[Fact]
+		public void InsertColumns() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			var sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Title`) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a =>new { a.Title, a.Clicks }).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+		}
+		[Fact]
+		public void IgnoreColumns() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			var sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime }).ToSql();
+			Assert.Equal("INSERT INTO `tb_topic`(`Clicks`) VALUES(@Clicks_0), (@Clicks_1), (@Clicks_2), (@Clicks_3), (@Clicks_4), (@Clicks_5), (@Clicks_6), (@Clicks_7), (@Clicks_8), (@Clicks_9)", sql);
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			Assert.Equal(1, insert.AppendData(items.First()).ExecuteAffrows());
+			Assert.Equal(10, insert.AppendData(items).ExecuteAffrows());
+
+			Assert.Equal(1, g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211 }).ExecuteAffrows());
+			Assert.Equal(1, g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211 }).NoneParameter().ExecuteAffrows());
+		}
+		[Fact]
+		public void ExecuteIdentity() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			Assert.NotEqual(0, insert.AppendData(items.First()).ExecuteIdentity());
+
+			var id = g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211 }).ExecuteIdentity();
+			Assert.Equal(TestEnumInserTbType.sum211, g.mysql.Select< TestEnumInsertTb>().Where(a => a.id == id).First()?.type);
+			id = g.mysql.Insert<TestEnumInsertTb>().AppendData(new TestEnumInsertTb { type = TestEnumInserTbType.sum211 }).NoneParameter().ExecuteIdentity();
+			Assert.Equal(TestEnumInserTbType.sum211, g.mysql.Select<TestEnumInsertTb>().Where(a => a.id == id).First()?.type);
+		}
+		[Fact]
+		public void ExecuteInserted() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			//insert.AppendData(items.First()).ExecuteInserted();
+		}
+
+		[Fact]
+		public void AsTable() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newTitle{a}", Clicks = a * 100 });
+
+			var sql = insert.AppendData(items.First()).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`, `Title`, `CreateTime`) VALUES(@Clicks_0, @Title_0, @CreateTime_0)", sql);
+
+			sql = insert.AppendData(items).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`, `Title`, `CreateTime`) VALUES(@Clicks_0, @Title_0, @CreateTime_0), (@Clicks_1, @Title_1, @CreateTime_1), (@Clicks_2, @Title_2, @CreateTime_2), (@Clicks_3, @Title_3, @CreateTime_3), (@Clicks_4, @Title_4, @CreateTime_4), (@Clicks_5, @Title_5, @CreateTime_5), (@Clicks_6, @Title_6, @CreateTime_6), (@Clicks_7, @Title_7, @CreateTime_7), (@Clicks_8, @Title_8, @CreateTime_8), (@Clicks_9, @Title_9, @CreateTime_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a => a.Title).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Title`) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a => a.Title).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Title`) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`, `Title`) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime }).AsTable(a => "Topic_InsertAsTable").ToSql();
+			Assert.Equal("INSERT INTO `Topic_InsertAsTable`(`Clicks`) VALUES(@Clicks_0), (@Clicks_1), (@Clicks_2), (@Clicks_3), (@Clicks_4), (@Clicks_5), (@Clicks_6), (@Clicks_7), (@Clicks_8), (@Clicks_9)", sql);
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlUpdateTest.cs

@@ -0,0 +1,186 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlUpdateTest {
+		IUpdate<Topic> update => g.mysql.Update<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int? Clicks { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestEnumUpdateTb {
+			[Column(IsIdentity = true)]
+			public int id { get; set; }
+			public TestEnumUpdateTbType type { get; set; }
+			public DateTime time { get; set; } = new DateTime();
+		}
+		enum TestEnumUpdateTbType { str1, biggit, sum211 }
+
+		[Fact]
+		public void Dywhere() {
+			Assert.Null(g.mysql.Update<Topic>().ToSql());
+			Assert.Equal("UPDATE `tb_topic` SET title='test' \r\nWHERE (`Id` = 1 OR `Id` = 2)", g.mysql.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").ToSql());
+			Assert.Equal("UPDATE `tb_topic` SET title='test1' \r\nWHERE (`Id` = 1)", g.mysql.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").ToSql());
+			Assert.Equal("UPDATE `tb_topic` SET title='test1' \r\nWHERE (`Id` = 1 OR `Id` = 2)", g.mysql.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").ToSql());
+			Assert.Equal("UPDATE `tb_topic` SET title='test1' \r\nWHERE (`Id` = 1)", g.mysql.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").ToSql());
+		}
+
+		[Fact]
+		public void SetSource() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = @p_0, `Title` = @p_1, `CreateTime` = @p_2 WHERE (`Id` = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			sql = update.SetSource(items).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = CASE `Id` WHEN 1 THEN @p_0 WHEN 2 THEN @p_1 WHEN 3 THEN @p_2 WHEN 4 THEN @p_3 WHEN 5 THEN @p_4 WHEN 6 THEN @p_5 WHEN 7 THEN @p_6 WHEN 8 THEN @p_7 WHEN 9 THEN @p_8 WHEN 10 THEN @p_9 END, `Title` = CASE `Id` WHEN 1 THEN @p_10 WHEN 2 THEN @p_11 WHEN 3 THEN @p_12 WHEN 4 THEN @p_13 WHEN 5 THEN @p_14 WHEN 6 THEN @p_15 WHEN 7 THEN @p_16 WHEN 8 THEN @p_17 WHEN 9 THEN @p_18 WHEN 10 THEN @p_19 END, `CreateTime` = CASE `Id` WHEN 1 THEN @p_20 WHEN 2 THEN @p_21 WHEN 3 THEN @p_22 WHEN 4 THEN @p_23 WHEN 5 THEN @p_24 WHEN 6 THEN @p_25 WHEN 7 THEN @p_26 WHEN 8 THEN @p_27 WHEN 9 THEN @p_28 WHEN 10 THEN @p_29 END WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = update.SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Title` = CASE `Id` WHEN 1 THEN @p_0 WHEN 2 THEN @p_1 WHEN 3 THEN @p_2 WHEN 4 THEN @p_3 WHEN 5 THEN @p_4 WHEN 6 THEN @p_5 WHEN 7 THEN @p_6 WHEN 8 THEN @p_7 WHEN 9 THEN @p_8 WHEN 10 THEN @p_9 END WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = update.SetSource(items).Set(a => a.CreateTime, new DateTime(2020,1,1)).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `CreateTime` = @p_0 WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = g.mysql.Insert<TestEnumUpdateTb>().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("INSERT INTO `TestEnumUpdateTb`(`type`, `time`) VALUES(@type_0, @time_0)", sql);
+			var id = g.mysql.Insert<TestEnumUpdateTb>().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ExecuteIdentity();
+			Assert.True(id > 0);
+			Assert.Equal(TestEnumUpdateTbType.sum211, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = @p_0, `time` = @p_1 WHERE (`id` = 0)", sql);
+			g.mysql.Update<TestEnumUpdateTb>().SetSource(new TestEnumUpdateTb { id = (int)id, type = TestEnumUpdateTbType.biggit }).ExecuteAffrows();
+			Assert.Equal(TestEnumUpdateTbType.biggit, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+
+			sql = g.mysql.Insert<TestEnumUpdateTb>().NoneParameter().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("INSERT INTO `TestEnumUpdateTb`(`type`, `time`) VALUES('sum211', '0001-01-01 00:00:00.000')", sql);
+			id = g.mysql.Insert<TestEnumUpdateTb>().NoneParameter().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ExecuteIdentity();
+			Assert.True(id > 0);
+			Assert.Equal(TestEnumUpdateTbType.sum211, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = 'sum211', `time` = '0001-01-01 00:00:00.000' WHERE (`id` = 0)", sql);
+			g.mysql.Update<TestEnumUpdateTb>().NoneParameter().SetSource(new TestEnumUpdateTb { id = (int)id, type = TestEnumUpdateTbType.biggit }).ExecuteAffrows();
+			Assert.Equal(TestEnumUpdateTbType.biggit, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+		}
+		[Fact]
+		public void IgnoreColumns() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Title` = @p_0 WHERE (`Id` = 1)", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).IgnoreColumns(a => a.time).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = @p_0 WHERE (`id` = 0)", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).IgnoreColumns(a => a.time).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = 'sum211' WHERE (`id` = 0)", sql);
+		}
+		[Fact]
+		public void UpdateColumns() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).UpdateColumns(a => a.Title).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Title` = @p_0 WHERE (`Id` = 1)", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).UpdateColumns(a => a.type).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = @p_0 WHERE (`id` = 0)", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().SetSource(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).UpdateColumns(a => a.type).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = 'sum211' WHERE (`id` = 0)", sql);
+		}
+		[Fact]
+		public void Set() {
+			var sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Title` = @p_0 WHERE (`Id` = 1)", sql);
+
+			sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Title` = @p_0, `CreateTime` = @p_1 WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = ifnull(`Clicks`, 0) * 10 / 1 WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Id - 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Id` = (`Id` - 10) WHERE (`Id` = 1)", sql);
+
+			int incrv = 10;
+			sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = ifnull(`Clicks`, 0) * 10 / 1 WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Id` = (`Id` - 10) WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = `Clicks` * 10 / 1 WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Id` = 10 WHERE (`Id` = 1)", sql);
+
+			var id = g.mysql.Insert<TestEnumUpdateTb>().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ExecuteIdentity();
+			Assert.True(id > 0);
+			sql = g.mysql.Update<TestEnumUpdateTb>().Where(a => a.id == id).Set(a => a.type, TestEnumUpdateTbType.biggit).ToSql().Replace("\r\n", "");
+			Assert.Equal($"UPDATE `TestEnumUpdateTb` SET `type` = @p_0 WHERE (`id` = {id})", sql);
+			g.mysql.Update<TestEnumUpdateTb>().Where(a => a.id == id).Set(a => a.type, TestEnumUpdateTbType.biggit).ExecuteAffrows();
+			Assert.Equal(TestEnumUpdateTbType.biggit, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().Where(a => a.id == id).Set(a => a.type, TestEnumUpdateTbType.str1).ToSql().Replace("\r\n", "");
+			Assert.Equal($"UPDATE `TestEnumUpdateTb` SET `type` = 'str1' WHERE (`id` = {id})", sql);
+			g.mysql.Update<TestEnumUpdateTb>().NoneParameter().Where(a => a.id == id).Set(a => a.type, TestEnumUpdateTbType.str1).ExecuteAffrows();
+			Assert.Equal(TestEnumUpdateTbType.str1, g.mysql.Select<TestEnumUpdateTb>().Where(a => a.id == id).First()?.type);
+		}
+		[Fact]
+		public void SetRaw() {
+			var sql = update.Where(a => a.Id == 1).SetRaw("clicks = clicks + @incrClick", new { incrClick = 1 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET clicks = clicks + @incrClick WHERE (`Id` = 1)", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().Where(a => a.id == 0).SetRaw("`type` = {0}".FormatMySql(TestEnumUpdateTbType.sum211)).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = 'sum211' WHERE (`id` = 0)", sql);
+		}
+		[Fact]
+		public void Where() {
+			var sql = update.Where(a => a.Id == 1).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET title='newtitle' WHERE (`Id` = 1)", sql);
+
+			sql = update.Where("id = @id", new { id = 1 }).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET title='newtitle' WHERE (id = @id)", sql);
+
+			var item = new Topic { Id = 1, Title = "newtitle" };
+			sql = update.Where(item).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET title='newtitle' WHERE (`Id` = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+			sql = update.Where(items).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET title='newtitle' WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = g.mysql.Update<TestEnumUpdateTb>().NoneParameter().Where(a => a.id == 0 && a.type == TestEnumUpdateTbType.str1)
+				.Set(a => a.type, TestEnumUpdateTbType.sum211).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `TestEnumUpdateTb` SET `type` = 'sum211' WHERE (`id` = 0 AND `type` = 'str1')", sql);
+		}
+		[Fact]
+		public void WhereExists() {
+
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+
+		}
+		[Fact]
+		public void ExecuteUpdated() {
+
+		}
+
+		[Fact]
+		public void AsTable() {
+			Assert.Null(g.mysql.Update<Topic>().ToSql());
+			Assert.Equal("UPDATE `tb_topicAsTable` SET title='test' \r\nWHERE (`Id` = 1 OR `Id` = 2)", g.mysql.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE `tb_topicAsTable` SET title='test1' \r\nWHERE (`Id` = 1)", g.mysql.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE `tb_topicAsTable` SET title='test1' \r\nWHERE (`Id` = 1 OR `Id` = 2)", g.mysql.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE `tb_topicAsTable` SET title='test1' \r\nWHERE (`Id` = 1)", g.mysql.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MapType/EnumTest.cs

@@ -0,0 +1,254 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorMapType {
+	public class EnumTest {
+		class EnumTestMap {
+			public Guid id { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum enum_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum? enumnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(int))]
+			public ToStringMapEnum enum_to_int { get; set; }
+			[Column(MapType = typeof(int?))]
+			public ToStringMapEnum? enumnullable_to_int { get; set; }
+		}
+		public enum ToStringMapEnum { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = g.mysql;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item = new EnumTestMap { enum_to_string = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//update all
+			item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullableToString() {
+			//insert
+			var orm = g.mysql;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			item = new EnumTestMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			item.enumnullable_to_string = null;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void EnumToInt() {
+			//insert
+			var orm = g.mysql;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			item = new EnumTestMap { enum_to_int = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+			//update all
+			item.enum_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullableToInt() {
+			//insert
+			var orm = g.mysql;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Null(find.enumnullable_to_int);
+
+			item = new EnumTestMap { enumnullable_to_int = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+			item.enumnullable_to_int = null;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Null(find.enumnullable_to_int);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_int);
+
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_int);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MapType/ToStringTest.cs

@@ -0,0 +1,557 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorMapType {
+	public class ToStringTest {
+		class ToStringMap {
+			public Guid id { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public TimeSpan timespan_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public TimeSpan? timespannullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public DateTime datetime_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public DateTime? datetimenullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public Guid guid_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public Guid? guidnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum enum_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum? enumnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public BigInteger biginteger_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public BigInteger? bigintegernullable_to_string { get; set; }
+		}
+		public enum ToStringMapEnum { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item = new ToStringMap { enum_to_string = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//update all
+			item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullable() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			item = new ToStringMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			item.enumnullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void BigInteger1() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 0).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(0, find.biginteger_to_string);
+
+			item = new ToStringMap { biginteger_to_string = 100 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 100).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(100, find.biginteger_to_string);
+
+			//update all
+			item.biginteger_to_string = 200;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 200).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(200, find.biginteger_to_string);
+
+			item.biginteger_to_string = 205;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 205).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(205, find.biginteger_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.biginteger_to_string, 522).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 522).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(522, find.biginteger_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.biginteger_to_string, 10005).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 10005).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(10005, find.biginteger_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 522).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 205).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 10005).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void BigIntegerNullable() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			item = new ToStringMap { bigintegernullable_to_string = 101 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 101).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Equal(101, find.bigintegernullable_to_string);
+
+			//update all
+			item.bigintegernullable_to_string = 2004;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Equal(2004, find.bigintegernullable_to_string);
+
+			item.bigintegernullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.bigintegernullable_to_string, 998).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(998, find.bigintegernullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.bigintegernullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void TimeSpan1() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.Zero, find.timespan_to_string);
+
+			item = new ToStringMap { timespan_to_string = TimeSpan.FromDays(1) };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.FromDays(1), find.timespan_to_string);
+
+			//update all
+			item.timespan_to_string = TimeSpan.FromHours(10);
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.FromHours(10), find.timespan_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespan_to_string, TimeSpan.FromHours(11)).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(TimeSpan.FromHours(11), find.timespan_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void TimeSpanNullable() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Null(find.timespannullable_to_string);
+
+			item = new ToStringMap { timespannullable_to_string = TimeSpan.FromDays(1) };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Equal(TimeSpan.FromDays(1), find.timespannullable_to_string);
+
+			//update all
+			item.timespannullable_to_string = TimeSpan.FromHours(10);
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Equal(TimeSpan.FromHours(10), find.timespannullable_to_string);
+
+			item.timespannullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Null(find.timespannullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespannullable_to_string, TimeSpan.FromHours(11)).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(TimeSpan.FromHours(11), find.timespannullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespannullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.timespannullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void DateTime1() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.MinValue, find.datetime_to_string);
+
+			item = new ToStringMap { datetime_to_string = DateTime.Parse("2000-1-1") };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-1"), find.datetime_to_string);
+
+			//update all
+			item.datetime_to_string = DateTime.Parse("2000-1-11");
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-11"), find.datetime_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetime_to_string, DateTime.Parse("2000-1-12")).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(DateTime.Parse("2000-1-12"), find.datetime_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void DateTimeNullable() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Null(find.datetimenullable_to_string);
+
+			item = new ToStringMap { datetimenullable_to_string = DateTime.Parse("2000-1-1") };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-1"), find.datetimenullable_to_string);
+
+			//update all
+			item.datetimenullable_to_string = DateTime.Parse("2000-1-11");
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-11"), find.datetimenullable_to_string);
+
+			item.datetimenullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Null(find.datetimenullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetimenullable_to_string, DateTime.Parse("2000-1-12")).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(DateTime.Parse("2000-1-12"), find.datetimenullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetimenullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.datetimenullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void Guid1() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == Guid.Empty).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(Guid.Empty, find.guid_to_string);
+
+			var newid = Guid.NewGuid();
+			item = new ToStringMap { guid_to_string = newid };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//update all
+			newid = Guid.NewGuid();
+			item.guid_to_string = newid;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//update set
+			newid = Guid.NewGuid();
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guid_to_string, newid).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void GuidNullable() {
+			//insert
+			var orm = g.mysql;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Null(find.guidnullable_to_string);
+
+			var newid = Guid.NewGuid();
+			item = new ToStringMap { guidnullable_to_string = newid };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			//update all
+			newid = Guid.NewGuid();
+			item.guidnullable_to_string = newid;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			item.guidnullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Null(find.guidnullable_to_string);
+
+			//update set
+			newid = Guid.NewGuid();
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guidnullable_to_string, newid).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guidnullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.guidnullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlCodeFirstTest.cs

@@ -0,0 +1,477 @@
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlCodeFirstTest {
+
+		[Fact]
+		public void <EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>_<EFBFBD>ֶ<EFBFBD>() {
+			var sql = g.mysql.CodeFirst.GetComparisonDDLStatements<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2>();
+			g.mysql.CodeFirst.SyncStructure<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2>();
+
+			var item = new <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2 {
+				<EFBFBD><EFBFBD><EFBFBD><EFBFBD> = "<22><><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>",
+				<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> = DateTime.Now
+			};
+			Assert.Equal(1, g.mysql.Insert<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2>().AppendData(item).ExecuteAffrows());
+			Assert.NotEqual(Guid.Empty, item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+			var item2 = g.mysql.Select<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2>().Where(a => a.<EFBFBD><EFBFBD><EFBFBD><EFBFBD> == item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(item2);
+			Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+			Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+		}
+		class <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>2 {
+			[Column(IsPrimary = true)]
+			public Guid <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+			public string <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+			public DateTime <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> { get; set; }
+		}
+
+		[Fact]
+		public void AddUniques() {
+			var sql = g.mysql.CodeFirst.GetComparisonDDLStatements<AddUniquesInfo>();
+			g.mysql.CodeFirst.SyncStructure<AddUniquesInfo>();
+		}
+		[Table(Name = "AddUniquesInfo", OldName = "AddUniquesInfo2")]
+		class AddUniquesInfo {
+			public Guid id { get; set; }
+			[Column(Unique = "uk_phone")]
+			public string phone { get; set; }
+
+			[Column(Unique = "uk_group_index, uk_group_index22")]
+			public string group { get; set; }
+			[Column(Unique = "uk_group_index")]
+			public int index { get; set; }
+			[Column(Unique = "uk_group_index22")]
+			public string index22 { get; set; }
+		}
+
+		[Fact]
+		public void AddField() {
+			var sql = g.mysql.CodeFirst.GetComparisonDDLStatements<TopicAddField>();
+
+			var id = g.mysql.Insert<TopicAddField>().AppendData(new TopicAddField { }).ExecuteIdentity();
+		}
+
+		[Table(Name = "TopicAddField", OldName = "xxxtb.TopicAddField")]
+		public class TopicAddField {
+			[Column(IsIdentity = true)]
+			public int? Id { get; set; }
+
+			public string name { get; set; }
+
+			[Column(DbType = "varchar(200) not null", OldName = "title")]
+			public string title222 { get; set; } = "10";
+
+			[Column(IsIgnore = true)]
+			public DateTime ct { get; set; } = DateTime.Now;
+		}
+
+		[Fact]
+		public void GetComparisonDDLStatements() {
+
+			var sql = g.mysql.CodeFirst.GetComparisonDDLStatements<TableAllType>();
+			if (string.IsNullOrEmpty(sql) == false) {
+				Assert.Equal(@"CREATE TABLE IF NOT EXISTS `cccddd`.`tb_alltype` ( 
+  `Id` INT(11) NOT NULL AUTO_INCREMENT, 
+  `testFieldBool` BIT(1) NOT NULL, 
+  `testFieldSByte` TINYINT(3) NOT NULL, 
+  `testFieldShort` SMALLINT(6) NOT NULL, 
+  `testFieldInt` INT(11) NOT NULL, 
+  `testFieldLong` BIGINT(20) NOT NULL, 
+  `testFieldByte` TINYINT(3) UNSIGNED NOT NULL, 
+  `testFieldUShort` SMALLINT(5) UNSIGNED NOT NULL, 
+  `testFieldUInt` INT(10) UNSIGNED NOT NULL, 
+  `testFieldULong` BIGINT(20) UNSIGNED NOT NULL, 
+  `testFieldDouble` DOUBLE NOT NULL, 
+  `testFieldFloat` FLOAT NOT NULL, 
+  `testFieldDecimal` DECIMAL(10,2) NOT NULL, 
+  `testFieldTimeSpan` TIME NOT NULL, 
+  `testFieldDateTime` DATETIME(3) NOT NULL, 
+  `testFieldBytes` VARBINARY(255), 
+  `testFieldString` VARCHAR(255), 
+  `testFieldGuid` VARCHAR(36), 
+  `testFieldBoolNullable` BIT(1), 
+  `testFieldSByteNullable` TINYINT(3), 
+  `testFieldShortNullable` SMALLINT(6), 
+  `testFieldIntNullable` INT(11), 
+  `testFielLongNullable` BIGINT(20), 
+  `testFieldByteNullable` TINYINT(3) UNSIGNED, 
+  `testFieldUShortNullable` SMALLINT(5) UNSIGNED, 
+  `testFieldUIntNullable` INT(10) UNSIGNED, 
+  `testFieldULongNullable` BIGINT(20) UNSIGNED, 
+  `testFieldDoubleNullable` DOUBLE, 
+  `testFieldFloatNullable` FLOAT, 
+  `testFieldDecimalNullable` DECIMAL(10,2), 
+  `testFieldTimeSpanNullable` TIME, 
+  `testFieldDateTimeNullable` DATETIME(3), 
+  `testFieldGuidNullable` VARCHAR(36), 
+  `testFieldPoint` POINT, 
+  `testFieldLineString` LINESTRING, 
+  `testFieldPolygon` POLYGON, 
+  `testFieldMultiPoint` MULTIPOINT, 
+  `testFieldMultiLineString` MULTILINESTRING, 
+  `testFieldMultiPolygon` MULTIPOLYGON, 
+  `testFieldEnum1` ENUM('E1','E2','E3') NOT NULL, 
+  `testFieldEnum1Nullable` ENUM('E1','E2','E3'), 
+  `testFieldEnum2` SET('F1','F2','F3') NOT NULL, 
+  `testFieldEnum2Nullable` SET('F1','F2','F3'), 
+  PRIMARY KEY (`Id`)
+) Engine=InnoDB;
+", sql);
+			}
+
+			sql = g.mysql.CodeFirst.GetComparisonDDLStatements<Tb_alltype>();
+		}
+
+		IInsert<TableAllType> insert => g.mysql.Insert<TableAllType>();
+		ISelect<TableAllType> select => g.mysql.Select<TableAllType>();
+
+		[Fact]
+		public void CurdAllField() {
+			var item = new TableAllType { };
+			item.Id = (int)insert.AppendData(item).ExecuteIdentity();
+
+			var newitem = select.Where(a => a.Id == item.Id).ToOne();
+
+			var item2 = new TableAllType {
+				testFieldBool = true,
+				testFieldBoolNullable = true,
+				testFieldByte = 255,
+				testFieldByteNullable = 127,
+				testFieldBytes = Encoding.UTF8.GetBytes("<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"),
+				testFieldDateTime = DateTime.Now,
+				testFieldDateTimeNullable = DateTime.Now.AddHours(-1),
+				testFieldDecimal = 99.99M,
+				testFieldDecimalNullable = 99.98M,
+				testFieldDouble = 999.99,
+				testFieldDoubleNullable = 999.98,
+				testFieldEnum1 = TableAllTypeEnumType1.e5,
+				testFieldEnum1Nullable = TableAllTypeEnumType1.e3,
+				testFieldEnum2 = TableAllTypeEnumType2.f2,
+				testFieldEnum2Nullable = TableAllTypeEnumType2.f3,
+				testFieldFloat = 19.99F,
+				testFieldFloatNullable = 19.98F,
+				testFieldGuid = Guid.NewGuid(),
+				testFieldGuidNullable = Guid.NewGuid(),
+				testFieldInt = int.MaxValue,
+				testFieldIntNullable = int.MinValue,
+				testFieldLineString = new MygisLineString(new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10) }),
+				testFieldLong = long.MaxValue,
+				testFieldMultiLineString = new MygisMultiLineString(new[] {
+					new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10) },
+					new[] { new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 100) } }),
+				testFieldMultiPoint = new MygisMultiPoint(new[] { new MygisCoordinate2D(11, 11), new MygisCoordinate2D(51, 11) }),
+				testFieldMultiPolygon = new MygisMultiPolygon(new[] {
+					new MygisPolygon(new[] {
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) } }),
+					new MygisPolygon(new[] {
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) } }) }),
+				testFieldPoint = new MygisPoint(99, 99),
+				testFieldPolygon = new MygisPolygon(new[] {
+					new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) },
+						new[] { new MygisCoordinate2D(10, 10), new MygisCoordinate2D(50, 10), new MygisCoordinate2D(10, 50), new MygisCoordinate2D(10, 10) } }),
+				testFieldSByte = 100,
+				testFieldSByteNullable = 99,
+				testFieldShort = short.MaxValue,
+				testFieldShortNullable = short.MinValue,
+				testFieldString = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>string",
+				testFieldTimeSpan = TimeSpan.FromSeconds(999),
+				testFieldTimeSpanNullable = TimeSpan.FromSeconds(60),
+				testFieldUInt = uint.MaxValue,
+				testFieldUIntNullable = uint.MinValue,
+				testFieldULong = ulong.MaxValue,
+				testFieldULongNullable = ulong.MinValue,
+				testFieldUShort = ushort.MaxValue,
+				testFieldUShortNullable = ushort.MinValue,
+				testFielLongNullable = long.MinValue
+			};
+			item2.Id = (int)insert.AppendData(item2).ExecuteIdentity();
+			var newitem2 = select.Where(a => a.Id == item2.Id).ToOne();
+
+			var items = select.ToList();
+		}
+
+
+		[JsonObject(MemberSerialization.OptIn), Table(Name = "tb_alltype")]
+		public partial class Tb_alltype {
+
+			[JsonProperty, Column(Name = "Id", DbType = "int(11)", IsPrimary = true, IsIdentity = true)]
+			public int Id { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBool", DbType = "bit(1)")]
+			public bool TestFieldBool { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBoolNullable", DbType = "bit(1)", IsNullable = true)]
+			public bool? TestFieldBoolNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldByte", DbType = "tinyint(3) unsigned")]
+			public byte TestFieldByte { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldByteNullable", DbType = "tinyint(3) unsigned", IsNullable = true)]
+			public byte? TestFieldByteNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBytes", DbType = "varbinary(255)", IsNullable = true)]
+			public byte[] TestFieldBytes { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTime", DbType = "datetime")]
+			public DateTime TestFieldDateTime { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTimeNullable", DbType = "datetime", IsNullable = true)]
+			public DateTime? TestFieldDateTimeNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDecimal", DbType = "decimal(10,2)")]
+			public decimal TestFieldDecimal { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDecimalNullable", DbType = "decimal(10,2)", IsNullable = true)]
+			public decimal? TestFieldDecimalNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDouble", DbType = "double")]
+			public double TestFieldDouble { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDoubleNullable", DbType = "double", IsNullable = true)]
+			public double? TestFieldDoubleNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum1", DbType = "enum('E1','E2','E3','E5')")]
+			public Tb_alltypeTESTFIELDENUM1 TestFieldEnum1 { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum1Nullable", DbType = "enum('E1','E2','E3','E5')", IsNullable = true)]
+			public Tb_alltypeTESTFIELDENUM1NULLABLE? TestFieldEnum1Nullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum2", DbType = "set('F1','F2','F3')")]
+			public Tb_alltypeTESTFIELDENUM2 TestFieldEnum2 { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum2Nullable", DbType = "set('F1','F2','F3')", IsNullable = true)]
+			public Tb_alltypeTESTFIELDENUM2NULLABLE? TestFieldEnum2Nullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldFloat", DbType = "float")]
+			public float TestFieldFloat { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldFloatNullable", DbType = "float", IsNullable = true)]
+			public float? TestFieldFloatNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldGuid", DbType = "char(36)")]
+			public Guid TestFieldGuid { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldGuidNullable", DbType = "char(36)", IsNullable = true)]
+			public Guid? TestFieldGuidNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldInt", DbType = "int(11)")]
+			public int TestFieldInt { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldIntNullable", DbType = "int(11)", IsNullable = true)]
+			public int? TestFieldIntNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldLineString", DbType = "linestring", IsNullable = true)]
+			public MygisGeometry TestFieldLineString { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldLong", DbType = "bigint(20)")]
+			public long TestFieldLong { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldMultiLineString", DbType = "multilinestring", IsNullable = true)]
+			public MygisGeometry TestFieldMultiLineString { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldMultiPoint", DbType = "multipoint", IsNullable = true)]
+			public MygisGeometry TestFieldMultiPoint { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldMultiPolygon", DbType = "multipolygon", IsNullable = true)]
+			public MygisGeometry TestFieldMultiPolygon { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldPoint", DbType = "point", IsNullable = true)]
+			public MygisGeometry TestFieldPoint { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldPolygon", DbType = "polygon", IsNullable = true)]
+			public MygisGeometry TestFieldPolygon { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldSByte", DbType = "tinyint(3)")]
+			public sbyte TestFieldSByte { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldSByteNullable", DbType = "tinyint(3)", IsNullable = true)]
+			public sbyte? TestFieldSByteNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldShort", DbType = "smallint(6)")]
+			public short TestFieldShort { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldShortNullable", DbType = "smallint(6)", IsNullable = true)]
+			public short? TestFieldShortNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldString", DbType = "varchar(255)", IsNullable = true)]
+			public string TestFieldString { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldTimeSpan", DbType = "time")]
+			public TimeSpan TestFieldTimeSpan { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldTimeSpanNullable", DbType = "time", IsNullable = true)]
+			public TimeSpan? TestFieldTimeSpanNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUInt", DbType = "int(10) unsigned")]
+			public uint TestFieldUInt { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUIntNullable", DbType = "int(10) unsigned", IsNullable = true)]
+			public uint? TestFieldUIntNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldULong", DbType = "bigint(20) unsigned")]
+			public ulong TestFieldULong { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldULongNullable", DbType = "bigint(20) unsigned", IsNullable = true)]
+			public ulong? TestFieldULongNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUShort", DbType = "smallint(5) unsigned")]
+			public ushort TestFieldUShort { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUShortNullable", DbType = "smallint(5) unsigned", IsNullable = true)]
+			public ushort? TestFieldUShortNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFielLongNullable", DbType = "bigint(20)", IsNullable = true)]
+			public long? TestFielLongNullable { get; set; }
+
+			internal static IFreeSql mysql => null;
+			public static FreeSql.ISelect<Tb_alltype> Select => mysql.Select<Tb_alltype>();
+
+			public static long Delete(int Id) {
+				var affrows = mysql.Delete<Tb_alltype>().Where(a => a.Id == Id).ExecuteAffrows();
+				return affrows;
+			}
+
+			/// <summary>
+			/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Update<74><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Insert
+			/// </summary>
+			public void Save() {
+				if (this.Id != default(int)) {
+					var affrows = mysql.Update<Tb_alltype>().Where(a => a.Id == Id).ExecuteAffrows();
+					if (affrows > 0) return;
+				}
+				this.Id = (int)mysql.Insert<Tb_alltype>().AppendData(this).ExecuteIdentity();
+			}
+
+		}
+
+		public enum Tb_alltypeTESTFIELDENUM1 {
+			E1 = 1, E2, E3, E5
+		}
+		public enum Tb_alltypeTESTFIELDENUM1NULLABLE {
+			E1 = 1, E2, E3, E5
+		}
+		[Flags]
+		public enum Tb_alltypeTESTFIELDENUM2 : long {
+			F1 = 1, F2 = 2, F3 = 4
+		}
+		[Flags]
+		public enum Tb_alltypeTESTFIELDENUM2NULLABLE : long {
+			F1 = 1, F2 = 2, F3 = 4
+		}
+
+
+		[Table(Name = "tb_alltype")]
+		class TableAllType {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+
+			public bool testFieldBool { get; set; }
+			public sbyte testFieldSByte { get; set; }
+			public short testFieldShort { get; set; }
+			public int testFieldInt { get; set; }
+			public long testFieldLong { get; set; }
+			public byte testFieldByte { get; set; }
+			public ushort testFieldUShort { get; set; }
+			public uint testFieldUInt { get; set; }
+			public ulong testFieldULong { get; set; }
+			public double testFieldDouble { get; set; }
+			public float testFieldFloat { get; set; }
+			public decimal testFieldDecimal { get; set; }
+			public TimeSpan testFieldTimeSpan { get; set; }
+			public DateTime testFieldDateTime { get; set; }
+			public byte[] testFieldBytes { get; set; }
+			public string testFieldString { get; set; }
+			public Guid testFieldGuid { get; set; }
+
+			public bool? testFieldBoolNullable { get; set; }
+			public sbyte? testFieldSByteNullable { get; set; }
+			public short? testFieldShortNullable { get; set; }
+			public int? testFieldIntNullable { get; set; }
+			public long? testFielLongNullable { get; set; }
+			public byte? testFieldByteNullable { get; set; }
+			public ushort? testFieldUShortNullable { get; set; }
+			public uint? testFieldUIntNullable { get; set; }
+			public ulong? testFieldULongNullable { get; set; }
+			public double? testFieldDoubleNullable { get; set; }
+			public float? testFieldFloatNullable { get; set; }
+			public decimal? testFieldDecimalNullable { get; set; }
+			public TimeSpan? testFieldTimeSpanNullable { get; set; }
+			public DateTime? testFieldDateTimeNullable { get; set; }
+			public Guid? testFieldGuidNullable { get; set; }
+
+			public MygisPoint testFieldPoint { get; set; }
+			public MygisLineString testFieldLineString { get; set; }
+			public MygisPolygon testFieldPolygon { get; set; }
+			public MygisMultiPoint testFieldMultiPoint { get; set; }
+			public MygisMultiLineString testFieldMultiLineString { get; set; }
+			public MygisMultiPolygon testFieldMultiPolygon { get; set; }
+
+			public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+			public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+			public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+			public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+		}
+
+		public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+		[Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorAdo/MySqlAdoTest.cs

@@ -0,0 +1,54 @@
+using FreeSql.DataAnnotations;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlAdoTest {
+		[Fact]
+		public void Pool() {
+			var t1 = g.mysql.Ado.MasterPool.StatisticsFullily;
+		}
+
+		[Fact]
+		public void SlavePools() {
+			var t2 = g.mysql.Ado.SlavePools.Count;
+		}
+
+		[Fact]
+		public void ExecuteReader() {
+			
+		}
+		[Fact]
+		public void ExecuteArray() {
+			
+		}
+		[Fact]
+		public void ExecuteNonQuery() {
+			
+		}
+		[Fact]
+		public void ExecuteScalar() {
+			
+		}
+
+		[Fact]
+		public void Query() {
+			var t3 = g.mysql.Ado.Query<xxx>("select * from song");
+
+			var t4 = g.mysql.Ado.Query<(int, string, string)>("select * from song");
+
+			var t5 = g.mysql.Ado.Query<dynamic>("select * from song");
+		}
+
+		[Fact]
+		public void QueryMultipline() {
+			var t3 = g.mysql.Ado.Query<xxx, (int, string, string), dynamic>("select * from song; select * from song; select * from song");
+		}
+
+		class xxx {
+			public int Id { get; set; }
+			public string Path { get; set; }
+			public string Title2 { get; set; }
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/ConvertTest.cs

@@ -0,0 +1,146 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class ConvertTest {
+
+		ISelect<Topic> select => g.mysql.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+
+		[Fact]
+		public void ToBoolean() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (Convert.ToBoolean(a.Clicks) ? 1 : 0) > 0).ToList());
+			data.Add(select.Where(a => (bool.Parse(a.Clicks.ToString()) ? 1 : 0) > 0).ToList());
+		}
+		[Fact]
+		public void ToByte() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToByte(a.Clicks % 255) > 0).ToList());
+			data.Add(select.Where(a => byte.Parse((a.Clicks % 255).ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToChar() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToChar(a.Clicks) == '1').ToList());
+			data.Add(select.Where(a => char.Parse(a.Clicks.ToString()) == '1').ToList());
+		}
+		[Fact]
+		public void ToDateTime() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDateTime(a.CreateTime.ToString()).Year > 0).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()).Year > 0).ToList());
+		}
+		[Fact]
+		public void ToDecimal() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDecimal(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => decimal.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToDouble() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDouble(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => double.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt16() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToInt16(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => short.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt32() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (int)a.Clicks > 0).ToList());
+			data.Add(select.Where(a => Convert.ToInt32(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => int.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt64() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToInt64(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => long.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToSByte() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToSByte(a.Clicks % 128) > 0).ToList());
+			data.Add(select.Where(a => sbyte.Parse((a.Clicks % 128).ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToSingle() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToSingle(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => float.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToString(a.Clicks).Equals("")).ToList());
+			data.Add(select.Where(a => a.Clicks.ToString().Equals("")).ToList());
+		}
+		[Fact]
+		public void ToUInt16() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt16(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => ushort.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToUInt32() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt32(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => uint.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToUInt64() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt64(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => ulong.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+
+		[Fact]
+		public void Guid_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Guid.Parse(Guid.Empty.ToString()) == Guid.Empty).ToList());
+		}
+
+		[Fact]
+		public void Guid_NewGuid() {
+			var data = new List<object>();
+			//data.Add(select.OrderBy(a => Guid.NewGuid()).Limit(10).ToList());
+		}
+
+		[Fact]
+		public void Random() {
+			var data = new List<object>();
+			data.Add(select.Where(a => new Random().Next() > a.Clicks).Limit(10).ToList());
+			data.Add(select.Where(a => new Random().NextDouble() > a.Clicks).Limit(10).ToList());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/DateTimeTest.cs

@@ -0,0 +1,623 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class DateTimeTest {
+
+		ISelect<Topic> select => g.mysql.Select<Topic>();
+
+		[Table(Name = "tb_topic111333")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		[Table(Name = "TestTypeInfo333")]
+		class TestTypeInfo {
+			[Column(IsIdentity = true)]
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+			public DateTime Time { get; set; }
+		}
+		[Table(Name = "TestTypeParentInfo23123")]
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+			public DateTime Time2 { get; set; }
+		}
+		[Fact]
+		public void Now() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(now(), '%Y-%m-%d') as datetime))
+		}
+		[Fact]
+		public void UtcNow() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.UtcNow.Date).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(utc_timestamp(), '%Y-%m-%d') as datetime))
+		}
+		[Fact]
+		public void MinValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.MinValue.Date).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(cast('0001/1/1 0:00:00' as datetime), '%Y-%m-%d') as datetime))
+		}
+		[Fact]
+		public void MaxValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.MaxValue.Date).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(cast('9999/12/31 23:59:59' as datetime), '%Y-%m-%d') as datetime))
+		}
+		[Fact]
+		public void Date() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+			data.Add(select.Where(a => a.Type.Time.Date > DateTime.Now.Date).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Date > DateTime.Now.Date).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(now(), '%Y-%m-%d') as datetime));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (cast(date_format(a__Type.`Time`, '%Y-%m-%d') as datetime) > cast(date_format(now(), '%Y-%m-%d') as datetime));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (cast(date_format(a__Type__Parent.`Time2`, '%Y-%m-%d') as datetime) > cast(date_format(now(), '%Y-%m-%d') as datetime));
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.CreateTime.Date).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Time.Date).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Parent.Time2.Date).TotalSeconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (((timestampdiff(microsecond, cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (((timestampdiff(microsecond, cast(date_format(a__Type.`Time`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (((timestampdiff(microsecond, cast(date_format(a__Type__Parent.`Time2`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0)
+		}
+		[Fact]
+		public void TimeOfDay() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay == DateTime.Now.TimeOfDay).ToList());
+			data.Add(select.Where(a => a.Type.Time.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((timestampdiff(microsecond, date_format(a__Type.`Time`, '1970-1-1 %H:%i:%s.%f'), a__Type.`Time`) + 62135596800000000) > (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((timestampdiff(microsecond, date_format(a__Type__Parent.`Time2`, '1970-1-1 %H:%i:%s.%f'), a__Type__Parent.`Time2`) + 62135596800000000) > (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000))
+		}
+		[Fact]
+		public void DayOfWeek() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+			data.Add(select.Where(a => a.Type.Time.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((dayofweek(a.`CreateTime`) - 1) > (dayofweek(now()) - 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((dayofweek(a__Type.`Time`) - 1) > (dayofweek(now()) - 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((dayofweek(a__Type__Parent.`Time2`) - 1) > (dayofweek(now()) - 1))
+		}
+		[Fact]
+		public void Day() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Day > DateTime.Now.Day).ToList());
+			data.Add(select.Where(a => a.Type.Time.Day > DateTime.Now.Day).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Day > DateTime.Now.Day).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (dayofmonth(a.`CreateTime`) > dayofmonth(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (dayofmonth(a__Type.`Time`) > dayofmonth(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (dayofmonth(a__Type__Parent.`Time2`) > dayofmonth(now()))
+		}
+		[Fact]
+		public void DayOfYear() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.DayOfYear > DateTime.Now.DayOfYear).ToList());
+			data.Add(select.Where(a => a.Type.Time.DayOfYear > DateTime.Now.DayOfYear).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.DayOfYear > DateTime.Now.DayOfYear).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (dayofyear(a.`CreateTime`) > dayofyear(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (dayofyear(a__Type.`Time`) > dayofyear(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (dayofyear(a__Type__Parent.`Time2`) > dayofyear(now()))
+		}
+		[Fact]
+		public void Month() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Month > DateTime.Now.Month).ToList());
+			data.Add(select.Where(a => a.Type.Time.Month > DateTime.Now.Month).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Month > DateTime.Now.Month).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (month(a.`CreateTime`) > month(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (month(a__Type.`Time`) > month(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (month(a__Type__Parent.`Time2`) > month(now()))
+		}
+		[Fact]
+		public void Year() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Year > DateTime.Now.Year).ToList());
+			data.Add(select.Where(a => a.Type.Time.Year > DateTime.Now.Year).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Year > DateTime.Now.Year).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (year(a.`CreateTime`) > year(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (year(a__Type.`Time`) > year(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (year(a__Type__Parent.`Time2`) > year(now()))
+		}
+		[Fact]
+		public void Hour() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Hour > DateTime.Now.Hour).ToList());
+			data.Add(select.Where(a => a.Type.Time.Hour > DateTime.Now.Hour).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Hour > DateTime.Now.Hour).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (hour(a.`CreateTime`) > hour(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (hour(a__Type.`Time`) > hour(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (hour(a__Type__Parent.`Time2`) > hour(now()))
+		}
+		[Fact]
+		public void Minute() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Minute > DateTime.Now.Minute).ToList());
+			data.Add(select.Where(a => a.Type.Time.Minute > DateTime.Now.Minute).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Minute > DateTime.Now.Minute).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (minute(a.`CreateTime`) > minute(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (minute(a__Type.`Time`) > minute(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (minute(a__Type__Parent.`Time2`) > minute(now()))
+		}
+		[Fact]
+		public void Second() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Second > DateTime.Now.Second).ToList());
+			data.Add(select.Where(a => a.Type.Time.Second > DateTime.Now.Second).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Second > DateTime.Now.Second).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (second(a.`CreateTime`) > second(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (second(a__Type.`Time`) > second(now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (second(a__Type__Parent.`Time2`) > second(now()))
+		}
+		[Fact]
+		public void Millisecond() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Millisecond > DateTime.Now.Millisecond).ToList());
+			data.Add(select.Where(a => a.Type.Time.Millisecond > DateTime.Now.Millisecond).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Millisecond > DateTime.Now.Millisecond).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (floor(microsecond(a.`CreateTime`) / 1000) > floor(microsecond(now()) / 1000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (floor(microsecond(a__Type.`Time`) / 1000) > floor(microsecond(now()) / 1000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (floor(microsecond(a__Type__Parent.`Time2`) / 1000) > floor(microsecond(now()) / 1000))
+		}
+		[Fact]
+		public void Ticks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Ticks > DateTime.Now.Ticks).ToList());
+			data.Add(select.Where(a => a.Type.Time.Ticks > DateTime.Now.Ticks).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Ticks > DateTime.Now.Ticks).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((timestampdiff(microsecond, '1970-1-1', a.`CreateTime`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((timestampdiff(microsecond, '1970-1-1', a__Type.`Time`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((timestampdiff(microsecond, '1970-1-1', a__Type__Parent.`Time2`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000))
+		}
+		[Fact]
+		public void Add() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval ((1 * 86400000000)) microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval ((1 * 86400000000)) microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval ((1 * 86400000000)) microsecond) > now())
+		}
+		[Fact]
+		public void AddDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddDays(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddDays(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddDays(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) day) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) day) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) day) > now())
+		}
+		[Fact]
+		public void AddHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddHours(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddHours(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddHours(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) hour) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) hour) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) hour) > now())
+		}
+		[Fact]
+		public void AddMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMilliseconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMilliseconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMilliseconds(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) * 1000 microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) * 1000 microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) * 1000 microsecond) > now())
+		}
+		[Fact]
+		public void AddMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMinutes(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMinutes(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMinutes(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) minute) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) minute) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) minute) > now())
+		}
+		[Fact]
+		public void AddMonths() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMonths(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMonths(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMonths(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) month) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) month) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) month) > now())
+		}
+		[Fact]
+		public void AddSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddSeconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddSeconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddSeconds(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) second) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) second) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) second) > now())
+		}
+		[Fact]
+		public void AddTicks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddTicks(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddTicks(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddTicks(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) / 10 microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) / 10 microsecond) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) / 10 microsecond) > now())
+		}
+		[Fact]
+		public void AddYears() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddYears(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_add(a.`CreateTime`, interval (1) year) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_add(a__Type.`Time`, interval (1) year) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_add(a__Type__Parent.`Time2`, interval (1) year) > now())
+		}
+		[Fact]
+		public void Subtract() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => a.Type.Time.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (((timestampdiff(microsecond, now(), a.`CreateTime`)) / 1000000) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (((timestampdiff(microsecond, now(), a__Type.`Time`)) / 1000000) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (((timestampdiff(microsecond, now(), a__Type__Parent.`Time2`)) / 1000000) > 0);
+			data.Add(select.Where(a => a.CreateTime.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => a.Type.Time.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (date_sub(a.`CreateTime`, interval ((1 * 86400000000)) microsecond) > a.`CreateTime`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (date_sub(a__Type.`Time`, interval ((1 * 86400000000)) microsecond) > a.`CreateTime`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (date_sub(a__Type__Parent.`Time2`, interval ((1 * 86400000000)) microsecond) > a.`CreateTime`)
+		}
+		[Fact]
+		public void this_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddYears(1).Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).Equals(DateTime.Now)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((date_add(a.`CreateTime`, interval (1) year) = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((date_add(a__Type.`Time`, interval (1) year) = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((date_add(a__Type__Parent.`Time2`, interval (1) year) = now()))
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.ToString().Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((date_format(a.`CreateTime`, '%Y-%m-%d %H:%i:%s.%f') = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((date_format(date_add(a__Type.`Time`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((date_format(date_add(a__Type__Parent.`Time2`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') = now()))
+		}
+
+		[Fact]
+		public void DateTime_Compare() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.CompareTo(DateTime.Now) == 0).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (((a.`CreateTime`) - (now())) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (((date_add(a__Type.`Time`, interval (1) year)) - (now())) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (((date_add(a__Type__Parent.`Time2`, interval (1) year)) - (now())) = 0)
+		}
+		[Fact]
+		public void DateTime_DaysInMonth() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.CreateTime.Year, a.CreateTime.Month) > 30).ToList());
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Time.Year, a.Type.Time.Month) > 30).ToList());
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Parent.Time2.Year, a.Type.Parent.Time2.Month) > 30).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (dayofmonth(last_day(concat(year(a.`CreateTime`), month(a.`CreateTime`), '-01'))) > 30);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (dayofmonth(last_day(concat(year(a__Type.`Time`), month(a__Type.`Time`), '-01'))) > 30);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (dayofmonth(last_day(concat(year(a__Type__Parent.`Time2`), month(a__Type__Parent.`Time2`), '-01'))) > 30)
+		}
+		[Fact]
+		public void DateTime_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.Equals(a.CreateTime.AddYears(1), DateTime.Now)).ToList());
+			data.Add(select.Where(a => DateTime.Equals(a.Type.Time.AddYears(1), DateTime.Now)).ToList());
+			data.Add(select.Where(a => DateTime.Equals(a.Type.Parent.Time2.AddYears(1), DateTime.Now)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE ((date_add(a.`CreateTime`, interval (1) year) = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE ((date_add(a__Type.`Time`, interval (1) year) = now()));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE ((date_add(a__Type__Parent.`Time2`, interval (1) year) = now()))
+		}
+		[Fact]
+		public void DateTime_IsLeapYear() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.CreateTime.Year)).ToList());
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Time.AddYears(1).Year)).ToList());
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Parent.Time2.AddYears(1).Year)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (((year(a.`CreateTime`)) % 4 = 0 AND (year(a.`CreateTime`)) % 100 <> 0 OR (year(a.`CreateTime`)) % 400 = 0));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (((year(date_add(a__Type.`Time`, interval (1) year))) % 4 = 0 AND (year(date_add(a__Type.`Time`, interval (1) year))) % 100 <> 0 OR (year(date_add(a__Type.`Time`, interval (1) year))) % 400 = 0));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (((year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 4 = 0 AND (year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 100 <> 0 OR (year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 400 = 0))
+		}
+		[Fact]
+		public void DateTime_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()) > DateTime.Now).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.Type.Time.AddYears(1).ToString()) > DateTime.Now).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.Type.Parent.Time2.AddYears(1).ToString()) > DateTime.Now).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic111333` a 
+			//WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d %H:%i:%s.%f') as datetime) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+			//WHERE (cast(date_format(date_add(a__Type.`Time`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') as datetime) > now());
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+			//FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+			//WHERE (cast(date_format(date_add(a__Type__Parent.`Time2`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') as datetime) > now())
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/MathTest.cs

@@ -0,0 +1,132 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class MathTest {
+
+		ISelect<Topic> select => g.mysql.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+
+		[Fact]
+		public void PI() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.PI + a.Clicks > 0).ToList());
+		}
+		[Fact]
+		public void Abs() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Abs(-a.Clicks) > 0).ToList());
+		}
+		[Fact]
+		public void Sign() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Sign(-a.Clicks) > 0).ToList());
+		}
+		[Fact]
+		public void Floor() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Floor(a.Clicks + 0.5) == a.Clicks).ToList());
+		}
+		[Fact]
+		public void Ceiling() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Ceiling(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Round() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Round(a.Clicks + 0.5) == a.Clicks).ToList());
+			data.Add(select.Where(a => Math.Round(a.Clicks + 0.5, 1) > a.Clicks).ToList());
+		}
+		[Fact]
+		public void Exp() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Exp(1) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Log() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Log(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Log10() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Log10(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Pow() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Pow(2, a.Clicks) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Sqrt() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Sqrt(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Cos() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Cos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Sin() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Sin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Tan() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Tan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Acos() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Acos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Asin() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Asin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Atan() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Atan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Atan2() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Atan2(2, a.Clicks) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Truncate() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Truncate(a.Clicks * 1.0 / 3) == a.Clicks + 1).ToList());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/OtherTest.cs

@@ -0,0 +1,121 @@
+using FreeSql.DataAnnotations;
+using MySql.Data.MySqlClient;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class OtherTest {
+
+		ISelect<TableAllType> select => g.mysql.Select<TableAllType>();
+
+		public OtherTest() {
+			
+		}
+
+		[Fact]
+		public void Boolean() {
+			var t1 = select.Where(a => a.testFieldBool == true).ToList();
+			var t2 = select.Where(a => a.testFieldBool != true).ToList();
+			var t3 = select.Where(a => a.testFieldBool == false).ToList();
+			var t4 = select.Where(a => !a.testFieldBool).ToList();
+			var t5 = select.Where(a => a.testFieldBool).ToList();
+
+			var t11 = select.Where(a => a.testFieldBoolNullable == true).ToList();
+			var t22 = select.Where(a => a.testFieldBoolNullable != true).ToList();
+			var t33 = select.Where(a => a.testFieldBoolNullable == false).ToList();
+			var t44 = select.Where(a => !a.testFieldBoolNullable.Value).ToList();
+			var t55 = select.Where(a => a.testFieldBoolNullable.Value).ToList();
+		}
+
+		[Fact]
+		public void Array() {
+			int[] nullarr = null;
+			Assert.Throws<MySqlException>(() => { select.Where(a => nullarr.Contains(a.testFieldInt)).ToList(); });
+			Assert.Throws<MySqlException>(() => { select.Where(a => new int[0].Contains(a.testFieldInt)).ToList(); });
+
+			IEnumerable<int> testlinqlist = new List<int>(new[] { 1, 2, 3 });
+			var testlinq = select.Where(a => testlinqlist.Contains(a.testFieldInt)).ToList();
+
+			//in not in
+			var sql111 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+			var sql112 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+			var sql113 = select.Where(a => !new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+			var inarray = new[] { 1, 2, 3 };
+			var sql1111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+			var sql1122 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+			var sql1133 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+
+			//in not in
+			var sql11111 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+			var sql11222 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+			var sql11333 = select.Where(a => !new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+			var sql11111a = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+			var sql11222b = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt) == false).ToList();
+			var sql11333c = select.Where(a => !new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+
+			var inarray2 = new List<int>() { 1, 2, 3 };
+			var sql111111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+			var sql112222 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+			var sql113333 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+		}
+
+		[Table(Name = "tb_alltype")]
+		class TableAllType {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+
+			public bool testFieldBool { get; set; }
+			public sbyte testFieldSByte { get; set; }
+			public short testFieldShort { get; set; }
+			public int testFieldInt { get; set; }
+			public long testFieldLong { get; set; }
+			public byte testFieldByte { get; set; }
+			public ushort testFieldUShort { get; set; }
+			public uint testFieldUInt { get; set; }
+			public ulong testFieldULong { get; set; }
+			public double testFieldDouble { get; set; }
+			public float testFieldFloat { get; set; }
+			public decimal testFieldDecimal { get; set; }
+			public TimeSpan testFieldTimeSpan { get; set; }
+			public DateTime testFieldDateTime { get; set; }
+			public byte[] testFieldBytes { get; set; }
+			public string testFieldString { get; set; }
+			public Guid testFieldGuid { get; set; }
+
+			public bool? testFieldBoolNullable { get; set; }
+			public sbyte? testFieldSByteNullable { get; set; }
+			public short? testFieldShortNullable { get; set; }
+			public int? testFieldIntNullable { get; set; }
+			public long? testFielLongNullable { get; set; }
+			public byte? testFieldByteNullable { get; set; }
+			public ushort? testFieldUShortNullable { get; set; }
+			public uint? testFieldUIntNullable { get; set; }
+			public ulong? testFieldULongNullable { get; set; }
+			public double? testFieldDoubleNullable { get; set; }
+			public float? testFieldFloatNullable { get; set; }
+			public decimal? testFieldDecimalNullable { get; set; }
+			public TimeSpan? testFieldTimeSpanNullable { get; set; }
+			public DateTime? testFieldDateTimeNullable { get; set; }
+			public Guid? testFieldGuidNullable { get; set; }
+
+			public MygisPoint testFieldPoint { get; set; }
+			public MygisLineString testFieldLineString { get; set; }
+			public MygisPolygon testFieldPolygon { get; set; }
+			public MygisMultiPoint testFieldMultiPoint { get; set; }
+			public MygisMultiLineString testFieldMultiLineString { get; set; }
+			public MygisMultiPolygon testFieldMultiPolygon { get; set; }
+
+			public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+			public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+			public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+			public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+		}
+
+		public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+		[Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs

@@ -0,0 +1,696 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class StringTest {
+
+		ISelect<Topic> select => g.mysql.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			[Column(IsIdentity = true)]
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+		class TestEqualsGuid {
+			public Guid id { get; set; }
+			public bool IsDeleted { get; set; }
+		}
+
+		[Fact]
+		public void Equals__() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.Equals("aaa")).ToList());
+			list.Add(g.mysql.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
+			list.Add(g.mysql.Select<TestEqualsGuid>().Where(a => a.IsDeleted.Equals(false)).ToList());
+		}
+
+		[Fact]
+		public void Empty() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (a.Title ?? "") == string.Empty).ToSql());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (ifnull(a.`Title`, '') = '')
+		}
+
+		[Fact]
+		public void StartsWith() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.StartsWith("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE '%aaa')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat('%', a.`Title`))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat('%', concat(a.`Title`, 1)))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((a.`Title`) LIKE concat('%', a__Type.`Name`))
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE '%aaa')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a.`Title`))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', concat(a.`Title`, 1)))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`))
+		}
+		[Fact]
+		public void EndsWith() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.EndsWith("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE 'aaa%')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat(a.`Title`, '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat(concat(a.`Title`, 1), '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((a.`Title`) LIKE concat(a__Type.`Name`, '%'))
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE 'aaa%')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat(a.`Title`, '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat(concat(a.`Title`, 1), '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat(a__Type.`Name`, '%'))
+		}
+		[Fact]
+		public void Contains() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.Contains("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE '%aaa%')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat('%', a.`Title`, '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((a.`Title`) LIKE concat('%', a.`Title` +1, '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((a.`Title`) LIKE concat('%', a__Type.`Name`, '%'))
+			list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name)).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE '%aaa%')
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a.`Title`, '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', concat(a.`Title`, 1), '%'))
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+		}
+		[Fact]
+		public void ToLower() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.ToLower() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(a.`Title`) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(a.`Title`) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(a.`Title`) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE(lower(a.`Title`) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(concat(lower(a.`Title`), 'aaa')) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(concat(lower(a.`Title`), 'aaa')) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+			//FROM `tb_topic` a
+			//WHERE(lower(concat(lower(a.`Title`), 'aaa')) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type
+			//WHERE(lower(concat(lower(a.`Title`), 'aaa')) = a__Type.`Name`)
+		}
+		[Fact]
+		public void ToUpper() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.ToUpper() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(a.`Title`) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(a.`Title`) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(a.`Title`) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (upper(a.`Title`) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(concat(upper(a.`Title`), 'aaa')) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(concat(upper(a.`Title`), 'aaa')) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (upper(concat(upper(a.`Title`), 'aaa')) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (upper(concat(upper(a.`Title`), 'aaa')) = a__Type.`Name`)
+		}
+		[Fact]
+		public void Substring() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Substring(0) == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(a.`Title`, 1) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(a.`Title`, 1) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(a.`Title`, 1) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (substr(a.`Title`, 1) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(a.Title.Length) == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, a.Title.Length) == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, 3) == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(1, 2) == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), char_length(a.`Title`) + 1) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 1, char_length(a.`Title`)) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 1, 3) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 2, 2) = a__Type.`Name`)
+		}
+		[Fact]
+		public void Length() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Length == 0).ToList());
+			data.Add(select.Where(a => a.Title.Length == 1).ToList());
+			data.Add(select.Where(a => a.Title.Length == a.Title.Length + 1).ToList());
+			data.Add(select.Where(a => a.Title.Length == a.Type.Name.Length).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(a.`Title`) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(a.`Title`) = 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(a.`Title`) = char_length(a.`Title`) + 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (char_length(a.`Title`) = char_length(a__Type.`Name`));
+			data.Add(select.Where(a => (a.Title + "aaa").Length == 0).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == 1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == a.Title.Length + 1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == a.Type.Name.Length).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(concat(a.`Title`, 'aaa')) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(concat(a.`Title`, 'aaa')) = 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (char_length(concat(a.`Title`, 'aaa')) = char_length(a.`Title`) + 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (char_length(concat(a.`Title`, 'aaa')) = char_length(a__Type.`Name`))
+		}
+		[Fact]
+		public void IndexOf() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.IndexOf("aaa") == -1).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == -1).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(a.`Title`, 'aaa') - 1) = -1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = -1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = char_length(a.`Title`) + 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = char_length(a__Type.`Name`) + 1);
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa") == -1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == -1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa') - 1) = -1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = -1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = char_length(a.`Title`) + 1);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = char_length(a__Type.`Name`) + 1)
+		}
+		[Fact]
+		public void PadLeft() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(a.`Title`, 10, 'a') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(a.`Title`, 10, 'a') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(a.`Title`, 10, 'a') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (lpad(a.`Title`, 10, 'a') = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a__Type.`Name`)
+		}
+		[Fact]
+		public void PadRight() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.PadRight(10, 'a') == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.PadRight(10, 'a') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(a.`Title`, 10, 'a') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(a.`Title`, 10, 'a') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(a.`Title`, 10, 'a') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (rpad(a.`Title`, 10, 'a') = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a__Type.`Name`)
+		}
+		[Fact]
+		public void Trim() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Trim() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Trim('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Trim('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Trim('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(a.`Title`) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim('a' from a.`Title`) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim('b' from trim('a' from a.`Title`)) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim('c' from trim('b' from trim('a' from a.`Title`))) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.Trim() + "aaa").Trim() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a') + "aaa").Trim('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a', 'b') + "aaa").Trim('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a', 'b', 'c') + "aaa").Trim('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(concat(trim(a.`Title`), 'aaa')) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim('a' from concat(trim('a' from a.`Title`), 'aaa')) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim('b' from trim('a' from concat(trim('b' from trim('a' from a.`Title`)), 'aaa'))) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim('c' from trim('b' from trim('a' from concat(trim('c' from trim('b' from trim('a' from a.`Title`))), 'aaa')))) = a__Type.`Name`)
+		}
+		[Fact]
+		public void TrimStart() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.TrimStart() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (ltrim(a.`Title`) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'a' from trim(leading 'a' from a.`Title`)) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))))) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.TrimStart() + "aaa").TrimStart() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a') + "aaa").TrimStart('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a', 'b') + "aaa").TrimStart('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a', 'b', 'c') + "aaa").TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (ltrim(concat(ltrim(a.`Title`), 'aaa')) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'a' from trim(leading 'a' from a.`Title`)), 'aaa'))) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))), 'aaa'))))) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))))), 'aaa'))))))) = a__Type.`Name`)
+		}
+		[Fact]
+		public void TrimEnd() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rtrim(a.`Title`) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'a' from a.`Title`) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'b' from trim(trailing 'a' from a.`Title`)) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from a.`Title`))) = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.TrimEnd() + "aaa").TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a') + "aaa").TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b') + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b', 'c') + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (rtrim(concat(rtrim(a.`Title`), 'aaa')) = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'a' from concat(trim(trailing 'a' from a.`Title`), 'aaa')) = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (trim(trailing 'b' from trim(trailing 'a' from concat(trim(trailing 'b' from trim(trailing 'a' from a.`Title`)), 'aaa'))) = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from concat(trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from a.`Title`))), 'aaa')))) = a__Type.`Name`)
+		}
+		[Fact]
+		public void Replace() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Replace("a", "b") == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c") == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (replace(a.`Title`, 'a', 'b') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (replace(replace(a.`Title`, 'a', 'b'), 'b', 'c') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'c', 'a') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), a__Type.`Name`, 'a') = a__Type.`Name`);
+			data.Add(select.Where(a => (a.Title.Replace("a", "b") + "aaa").TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c") + "aaa").TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (concat(replace(a.`Title`, 'a', 'b'), 'aaa') = 'aaa');
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (concat(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'aaa') = a.`Title`);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (concat(replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'c', 'a'), 'aaa') = concat(a.`Title`, 1));
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (concat(replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), a__Type.`Name`, 'a'), 'aaa') = a__Type.`Name`)
+		}
+		[Fact]
+		public void CompareTo() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.CompareTo(a.Title) == 0).ToList());
+			data.Add(select.Where(a => a.Title.CompareTo(a.Title) > 0).ToList());
+			data.Add(select.Where(a => a.Title.CompareTo(a.Title + 1) == 0).ToList());
+			data.Add(select.Where(a => a.Title.CompareTo(a.Title + a.Type.Name) == 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(a.`Title`, a.`Title`) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(a.`Title`, a.`Title`) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(a.`Title`, concat(a.`Title`, 1)) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (strcmp(a.`Title`, concat(a.`Title`, a__Type.`Name`)) = 0);
+			data.Add(select.Where(a => (a.Title + "aaa").CompareTo("aaa") == 0).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title) > 0).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title + 1) == 0).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Type.Name) == 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(concat(a.`Title`, 'aaa'), 'aaa') = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(concat(a.`Title`, 'aaa'), a.`Title`) > 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (strcmp(concat(a.`Title`, 'aaa'), concat(a.`Title`, 1)) = 0);
+
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+			//FROM `tb_topic` a, `TestTypeInfo` a__Type 
+			//WHERE (strcmp(concat(a.`Title`, 'aaa'), a__Type.`Name`) = 0)
+		}
+
+		[Fact]
+		public void string_IsNullOrEmpty() {
+			var data = new List<object>();
+			data.Add(select.Where(a => string.IsNullOrEmpty(a.Title)).ToList());
+			data.Add(select.Where(a => string.IsNullOrEmpty(a.Title) == false).ToList());
+			data.Add(select.Where(a => !string.IsNullOrEmpty(a.Title)).ToList());
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/TimeSpanTest.cs

@@ -0,0 +1,260 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnectorExpression {
+	public class TimeSpanTest {
+
+		ISelect<Topic> select => g.mysql.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+		[Fact]
+		public void Zero() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.Zero).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) > 0)
+		}
+		[Fact]
+		public void MinValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.MinValue).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) > -922337203685477580)
+		}
+		[Fact]
+		public void MaxValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay < TimeSpan.MaxValue).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) < 922337203685477580)
+		}
+		[Fact]
+		public void Days() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Days == 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 86400000000) = 0)
+		}
+		[Fact]
+		public void Hours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Hours > 0).ToSql());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 3600000000) mod 24 > 0)
+		}
+		[Fact]
+		public void Milliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Milliseconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 1000 mod 1000) > 0)
+		}
+		[Fact]
+		public void Minutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Minutes > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 60000000 mod 60) > 0)
+		}
+		[Fact]
+		public void Seconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Seconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 1000000 mod 60) > 0)
+		}
+		[Fact]
+		public void Ticks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Ticks > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) * 10) > 0)
+		}
+		[Fact]
+		public void TotalDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalDays > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 86400000000) > 0)
+		}
+		[Fact]
+		public void TotalHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalHours > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 3600000000) > 0)
+		}
+		[Fact]
+		public void TotalMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMilliseconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 1000) > 0)
+		}
+		[Fact]
+		public void TotalMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMinutes > 0).ToSql());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 60000000) > 0)
+		}
+		[Fact]
+		public void TotalSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalSeconds > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 1000000) > 0)
+		}
+		[Fact]
+		public void Add() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Add(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) + (1 * 86400000000)) > 0)
+		}
+		[Fact]
+		public void Subtract() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Subtract(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) - (1 * 86400000000)) > 0)
+		}
+		[Fact]
+		public void CompareTo() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.CompareTo(TimeSpan.FromDays(1)) > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) - ((1 * 86400000000))) > 0)
+		}
+		[Fact]
+		public void this_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Equals(TimeSpan.FromDays(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.ToString() == "ssss").ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (date_format(date_add(cast('0001/1/1 0:00:00' as datetime), interval (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) microsecond), '%Y-%m-%d %H:%i:%s.%f') = 'ssss')
+		}
+
+		[Fact]
+		public void TimeSpan_Compare() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Compare(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1)) > 0).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) - ((1 * 86400000000))) > 0)
+		}
+		[Fact]
+		public void TimeSpan_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+		}
+		[Fact]
+		public void TimeSpan_FromDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+		}
+		[Fact]
+		public void TimeSpan_FromHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromHours(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 3600000000)))
+		}
+		[Fact]
+		public void TimeSpan_FromMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMilliseconds(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 1000)))
+		}
+		[Fact]
+		public void TimeSpan_FromMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMinutes(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 60000000)))
+		}
+		[Fact]
+		public void TimeSpan_FromSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromSeconds(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 1000000)))
+		}
+		[Fact]
+		public void TimeSpan_FromTicks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromTicks(1))).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 / 10)))
+		}
+		[Fact]
+		public void TimeSpan_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Parse(a.CreateTime.TimeOfDay.ToString()) > TimeSpan.Zero).ToList());
+			//SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+			//FROM `tb_topic` a 
+			//WHERE (cast(date_format(date_add(cast('0001/1/1 0:00:00' as datetime), interval (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) microsecond), '%Y-%m-%d %H:%i:%s.%f') as signed) > 0)
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlDbFirstTest.cs

@@ -0,0 +1,21 @@
+using FreeSql.DataAnnotations;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.MySqlConnector {
+	public class MySqlDbFirstTest {
+		[Fact]
+		public void GetDatabases() {
+
+			var t1 = g.mysql.DbFirst.GetDatabases();
+
+		}
+
+		[Fact]
+		public void GetTablesByDatabase() {
+
+			var t2 = g.mysql.DbFirst.GetTablesByDatabase(g.mysql.DbFirst.GetDatabases()[0]);
+
+		}
+	}
+}

FreeSql.Tests.Provider.MySqlConnector/g.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Text;
+
+
+public class g {
+
+	static Lazy<IFreeSql> mysqlLazy = new Lazy<IFreeSql>(() => new FreeSql.FreeSqlBuilder()
+		.UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd_mysqlconnector;Charset=utf8;SslMode=none;Max pool size=10")
+		.UseAutoSyncStructure(true)
+		.UseMonitorCommand(
+			cmd => {
+				Trace.WriteLine(cmd.CommandText);
+			}, //监听SQL命令对象，在执行前
+			(cmd, traceLog) => {
+				Console.WriteLine(traceLog);
+			}) //监听SQL命令对象，在执行后
+		.UseLazyLoading(true)
+		.Build());
+	public static IFreeSql mysql => mysqlLazy.Value;
+}

FreeSql.Tests/MySql/Curd/MySqlDeleteTest.cs

@@ -40,8 +40,8 @@ namespace FreeSql.Tests.MySql {
 			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("DELETE FROM `tb_topic` WHERE (`Id` = 1)", sql);
 
-			sql = delete.Where("id = ?id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
-			Assert.Equal("DELETE FROM `tb_topic` WHERE (id = ?id)", sql);
+			Assert.Equal("DELETE FROM `tb_topic` WHERE (id = @id)", sql);
 
 			var item = new Topic { Id = 1, Title = "newtitle" };
 			sql = delete.Where(item).ToSql().Replace("\r\n", "");

FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs

@@ -279,7 +279,7 @@ namespace FreeSql.Tests.MySql {
 			var sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id &&
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any(c => c.Id == a.Id + 10)
 			);
@@ -697,7 +697,7 @@ namespace FreeSql.Tests.MySql {
 			sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id && select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
 
-				.Offset(a.Id)
+				//.Offset(a.Id)
 
 				.Any()
 				).Any()

FreeSql.Tests/MySql/MySqlExpression/StringTest.cs

@@ -41,8 +41,8 @@ namespace FreeSql.Tests.MySqlExpression {
 		public void Equals__() {
 			var list = new List<object>();
 			list.Add(select.Where(a => a.Title.Equals("aaa")).ToList());
-			list.Add(g.sqlite.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
+			list.Add(g.mysql.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
-			list.Add(g.sqlite.Select<TestEqualsGuid>().Where(a => a.IsDeleted.Equals(false)).ToList());
+			list.Add(g.mysql.Select<TestEqualsGuid>().Where(a => a.IsDeleted.Equals(false)).ToList());
 		}
 
 		[Fact]

FreeSql.Tests/Oracle/Curd/OracleDeleteTest.cs

@@ -40,8 +40,8 @@ namespace FreeSql.Tests.Oracle {
 			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("DELETE FROM \"TB_TOPIC22211\" WHERE (\"ID\" = 1)", sql);
 
-			sql = delete.Where("id = ?id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			sql = delete.Where("id = :id", new { id = 1 }).ToSql().Replace("\r\n", "");
-			Assert.Equal("DELETE FROM \"TB_TOPIC22211\" WHERE (id = ?id)", sql);
+			Assert.Equal("DELETE FROM \"TB_TOPIC22211\" WHERE (id = :id)", sql);
 
 			var item = new Topic { Id = 1, Title = "newtitle" };
 			sql = delete.Where(item).ToSql().Replace("\r\n", "");

FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs

@@ -174,7 +174,7 @@ namespace FreeSql.Tests.Oracle {
 			var sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id &&
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any(c => c.Id == a.Id + 10)
 			);
@@ -591,7 +591,7 @@ namespace FreeSql.Tests.Oracle {
 			sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id && select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
 
-				.Offset(a.Id)
+				//.Offset(a.Id)
 
 				.Any()
 				).Any()

FreeSql.Tests/PostgreSQL/Curd/PostgreSQLDeleteTest.cs

@@ -40,8 +40,8 @@ namespace FreeSql.Tests.PostgreSQL {
 			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
 
-			sql = delete.Where("id = ?id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
-			Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (id = ?id)", sql);
+			Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (id = @id)", sql);
 
 			var item = new Topic { Id = 1, Title = "newtitle" };
 			sql = delete.Where(item).ToSql().Replace("\r\n", "");

FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs

@@ -244,7 +244,7 @@ namespace FreeSql.Tests.PostgreSQL {
 			var sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id &&
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any(c => c.Id == a.Id + 10)
 			);
@@ -663,7 +663,7 @@ namespace FreeSql.Tests.PostgreSQL {
 			sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id && select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
 
-				.Offset(a.Id)
+				//.Offset(a.Id)
 
 				.Any()
 				).Any()

FreeSql.Tests/SqlServer/Curd/SqlServerDeleteTest.cs

@@ -49,8 +49,8 @@ namespace FreeSql.Tests.SqlServer {
 			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
 
-			sql = delete.Where("id = ?id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
-			Assert.Equal("DELETE FROM [tb_topic22211] WHERE (id = ?id)", sql);
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE (id = @id)", sql);
 
 			var item = new Topic { Id = 1, Title = "newtitle" };
 			sql = delete.Where(item).ToSql().Replace("\r\n", "");

FreeSql.Tests/SqlServer/Curd/SqlServerSelectTest.cs

@@ -176,7 +176,7 @@ namespace FreeSql.Tests.SqlServer {
 			var sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id &&
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any(c => c.Id == a.Id + 10)
 			);
@@ -594,7 +594,7 @@ namespace FreeSql.Tests.SqlServer {
 			sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id && select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
 
-				.Offset(a.Id)
+				//.Offset(a.Id)
 
 				.Any()
 				).Any()

FreeSql.Tests/Sqlite/Curd/SqliteDeleteTest.cs

@@ -40,8 +40,8 @@ namespace FreeSql.Tests.Sqlite {
 			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("DELETE FROM \"tb_topic22211\" WHERE (\"Id\" = 1)", sql);
 
-			sql = delete.Where("id = ?id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
-			Assert.Equal("DELETE FROM \"tb_topic22211\" WHERE (id = ?id)", sql);
+			Assert.Equal("DELETE FROM \"tb_topic22211\" WHERE (id = @id)", sql);
 
 			var item = new Topic { Id = 1, Title = "newtitle" };
 			sql = delete.Where(item).ToSql().Replace("\r\n", "");

FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs

@@ -185,7 +185,7 @@ namespace FreeSql.Tests.Sqlite {
 			var sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id &&
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any(c => c.Id == a.Id + 10)
 			);
@@ -537,7 +537,7 @@ namespace FreeSql.Tests.Sqlite {
 			sql2222 = select.Where(a =>
 				select.Where(b => b.Id == a.Id && select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
 
-				.Offset(a.Id)
+				//.Offset(a.Id)
 
 				.Any()
 				).Any()

FreeSql.Tests/UnitTest1.cs

@@ -568,7 +568,7 @@ namespace FreeSql.Tests {
 			var sql2222 = select.Where(a => 
 				select.Where(b => b.Id == a.Id && 
 					select.Where(c => c.Id == b.Id).Where(d => d.Id == a.Id).Where(e => e.Id == b.Id)
-					.Offset(a.Id)
+					//.Offset(a.Id)
 					.Any()
 				).Any()
 			).ToList();

FreeSql.sln

@@ -42,6 +42,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Extensions.LazyLoad
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Provider.MySqlConnector", "Providers\FreeSql.Provider.MySqlConnector\FreeSql.Provider.MySqlConnector.csproj", "{D2A41321-5E84-410B-B25C-3AA122D4CA27}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FreeSql.Tests.Provider.MySqlConnector", "FreeSql.Tests.Provider.MySqlConnector\FreeSql.Tests.Provider.MySqlConnector.csproj", "{D113CDFB-FB97-482B-8A00-058E715B624A}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -220,6 +222,18 @@ Global
 		{D2A41321-5E84-410B-B25C-3AA122D4CA27}.Release|x64.Build.0 = Release|Any CPU
 		{D2A41321-5E84-410B-B25C-3AA122D4CA27}.Release|x86.ActiveCfg = Release|Any CPU
 		{D2A41321-5E84-410B-B25C-3AA122D4CA27}.Release|x86.Build.0 = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|x64.Build.0 = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Debug|x86.Build.0 = Debug|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|x64.ActiveCfg = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|x64.Build.0 = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|x86.ActiveCfg = Release|Any CPU
+		{D113CDFB-FB97-482B-8A00-058E715B624A}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

FreeSql/FreeSql.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql is the most convenient ORM in dotnet. It supports Mysql, Postgresql, SqlServer, Oracle and Sqlite.</Description>

Providers/FreeSql.Provider.MySql/FreeSql.Provider.MySql.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 MySql 5.6</Description>

Providers/FreeSql.Provider.MySqlConnector/Class1.cs

@@ -1,6 +0,0 @@
-using System;
-
-namespace FreeSql.Provider.MySqlConnector {
-	public class Class1 {
-	}
-}

Providers/FreeSql.Provider.MySqlConnector/FreeSql.Provider.MySqlConnector.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 MySql 5.6</Description>
@@ -23,6 +23,11 @@
 
 	<ItemGroup>
 		<Compile Include="../FreeSql.Provider.MySql/**/*.cs" Exclude="../FreeSql.Provider.MySql/obj/**/*" />
+		<None Include="../FreeSql.Provider.MySql/MySqlUtils.cs" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <Compile Remove="..\FreeSql.Provider.MySql\MySqlUtils.cs" />
 	</ItemGroup>
 	
 	<ItemGroup>

Providers/FreeSql.Provider.MySqlConnector/MySqlConnectorUtils.cs

@@ -0,0 +1,111 @@
+using FreeSql.Internal;
+using FreeSql.Internal.Model;
+using MySql.Data.MySqlClient;
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Reflection;
+using System.Text;
+
+namespace FreeSql.MySql {
+
+	class MySqlUtils : CommonUtils {
+		public MySqlUtils(IFreeSql orm) : base(orm) {
+		}
+
+		public override DbParameter AppendParamter(List<DbParameter> _params, string parameterName, Type type, object value) {
+			if (string.IsNullOrEmpty(parameterName)) parameterName = $"p_{_params?.Count}";
+			var ret = new MySqlParameter { ParameterName = QuoteParamterName(parameterName), Value = value };
+			var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
+			if (tp != null) {
+				if ((MySqlDbType)tp.Value == MySqlDbType.Geometry) {
+					ret.MySqlDbType = MySqlDbType.Text;
+					if (value != null) ret.Value = (value as MygisGeometry).AsText();
+				} else {
+					ret.MySqlDbType = (MySqlDbType)tp.Value;
+					if (ret.MySqlDbType == MySqlDbType.Enum && value != null)
+						ret.Value = (long)Convert.ChangeType(value, typeof(long)) + 1;
+				}
+			}
+			_params?.Add(ret);
+			return ret;
+		}
+
+		public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
+			Utils.GetDbParamtersByObject<MySqlParameter>(sql, obj, "@", (name, type, value) => {
+				var ret = new MySqlParameter { ParameterName = $"@{name}", Value = value };
+				var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
+				if (tp != null) {
+					if ((MySqlDbType)tp.Value == MySqlDbType.Geometry) {
+						ret.MySqlDbType = MySqlDbType.Text;
+						if (value != null) ret.Value = (value as MygisGeometry).AsText();
+					} else {
+						ret.MySqlDbType = (MySqlDbType)tp.Value;
+						if (ret.MySqlDbType == MySqlDbType.Enum && value != null)
+							ret.Value = (long)Convert.ChangeType(value, typeof(long)) + 1;
+					}
+				}
+				return ret;
+			});
+
+		public override string FormatSql(string sql, params object[] args) => sql?.FormatMySql(args);
+		public override string QuoteSqlName(string name) {
+			var nametrim = name.Trim();
+			if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
+				return nametrim; //原生SQL
+			return $"`{nametrim.Trim('`').Replace(".", "`.`")}`";
+		}
+		public override string TrimQuoteSqlName(string name) {
+			var nametrim = name.Trim();
+			if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
+				return nametrim; //原生SQL
+			return $"{nametrim.Trim('`').Replace("`.`", ".").Replace(".`", ".")}";
+		}
+		public override string QuoteParamterName(string name) => $"@{(_orm.CodeFirst.IsSyncStructureToLower ? name.ToLower() : name)}";
+		public override string IsNull(string sql, object value) => $"ifnull({sql}, {value})";
+		public override string StringConcat(string[] objs, Type[] types) => $"concat({string.Join(", ", objs)})";
+		public override string Mod(string left, string right, Type leftType, Type rightType) => $"{left} % {right}";
+		public override string QuoteWriteParamter(Type type, string paramterName) {
+			switch (type.FullName) {
+				case "MygisPoint":
+				case "MygisLineString": 
+				case "MygisPolygon": 
+				case "MygisMultiPoint": 
+				case "MygisMultiLineString":
+				case "MygisMultiPolygon": return $"ST_GeomFromText({paramterName})";
+			}
+			return paramterName;
+		}
+
+		public override string QuoteReadColumn(Type type, string columnName) {
+			switch (type.FullName) {
+				case "MygisPoint":
+				case "MygisLineString":
+				case "MygisPolygon":
+				case "MygisMultiPoint":
+				case "MygisMultiLineString":
+				case "MygisMultiPolygon": return $"AsText({columnName})";
+			}
+			return columnName;
+		}
+
+		public override string GetNoneParamaterSqlValue(List<DbParameter> specialParams, Type type, object value) {
+			if (value == null) return "NULL";
+			if (type == typeof(byte[])) {
+				var bytes = value as byte[];
+				var sb = new StringBuilder().Append("0x");
+				foreach (var vc in bytes) {
+					if (vc < 10) sb.Append("0");
+					sb.Append(vc.ToString("X"));
+				}
+				return sb.ToString(); //val = Encoding.UTF8.GetString(val as byte[]);
+			} else if (type == typeof(TimeSpan) || type == typeof(TimeSpan?)) {
+				var ts = (TimeSpan)value;
+				value = $"{Math.Floor(ts.TotalHours)}:{ts.Minutes}:{ts.Seconds}";
+			}
+			return FormatSql("{0}", value, 1);
+		}
+	}
+}

Providers/FreeSql.Provider.Oracle/FreeSql.Provider.Oracle.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 Oracle 11</Description>

Providers/FreeSql.Provider.PostgreSQL/FreeSql.Provider.PostgreSQL.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 PostgreSQL 9.5</Description>

Providers/FreeSql.Provider.SqlServer/FreeSql.Provider.SqlServer.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net451</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 SqlServer 2005+，并根据版本适配分页方法：row_number 或 offset fetch next</Description>

Providers/FreeSql.Provider.Sqlite/FreeSql.Provider.Sqlite.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
-		<Version>0.6.5</Version>
+		<Version>0.6.6</Version>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<Authors>YeXiangQin</Authors>
 		<Description>FreeSql 数据库实现，基于 Sqlite 3.0</Description>