- 补充 MapType，Column.MapType 类型映射，可将 enum 映射为 int/string 等 #19 #42；

- 优化 PostgreSQL jsonb 类型使用习惯；

FreeSql.Tests/MySql/MapType/BoolNullableTest.cs

@@ -2,7 +2,7 @@ using FreeSql.DataAnnotations;
 using System;
 using Xunit;
 
-namespace FreeSql.Tests.MySql.MapType {
+namespace FreeSql.Tests.MySqlMapType {
 	public class BoolNullableTest {
 		class BoolNullableMap {
 			public Guid id { get; set; }

FreeSql.Tests/MySql/MapType/BoolTest.cs

@@ -2,7 +2,7 @@ using FreeSql.DataAnnotations;
 using System;
 using Xunit;
 
-namespace FreeSql.Tests.MySql.MapType {
+namespace FreeSql.Tests.MySqlMapType {
 	public class BoolTest {
 
 		class BoolMap {

FreeSql.Tests/MySql/MapType/EnumTest.cs

@@ -3,7 +3,7 @@ using System;
 using System.Numerics;
 using Xunit;
 
-namespace FreeSql.Tests.MySql.MapType {
+namespace FreeSql.Tests.MySqlMapType {
 	public class EnumTest {
 		class EnumTestMap {
 			public Guid id { get; set; }

FreeSql.Tests/MySql/MapType/ToStringTest.cs

@@ -3,7 +3,7 @@ using System;
 using System.Numerics;
 using Xunit;
 
-namespace FreeSql.Tests.MySql.MapType {
+namespace FreeSql.Tests.MySqlMapType {
 	public class ToStringTest {
 		class ToStringMap {
 			public Guid id { get; set; }

FreeSql.Tests/Oracle/MapType/EnumTest.cs

@@ -0,0 +1,254 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.OracleMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = g.oracle;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.oracle;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.oracle;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).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.oracle;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).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/Oracle/MapType/ToStringTest.cs

@@ -0,0 +1,557 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.OracleMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = g.oracle;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.oracle;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.oracle;
+			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.oracle;
+			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.oracle;
+			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.oracle;
+			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.oracle;
+			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.oracle;
+			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.oracle;
+			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.oracle;
+			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/PostgreSQL/MapType/EnumTest.cs

@@ -0,0 +1,254 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.PostgreSQLMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = g.pgsql;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.pgsql;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.pgsql;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).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.pgsql;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).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/PostgreSQL/MapType/JTokenTest.cs

@@ -0,0 +1,424 @@
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.PostgreSQLMapType {
+	public class JTokenTest {
+		class JTokenTestMap {
+			public Guid id { get; set; }
+
+			[Column(MapType = typeof(JToken))]
+			public string string_to_jtoken { get; set; }
+			[Column(MapType = typeof(JArray))]
+			public string string_to_jarray { get; set; }
+			[Column(MapType = typeof(JObject))]
+			public string string_to_jobject { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public JToken jtoken_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public JArray jarray_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public JObject jobject_to_string { get; set; }
+		}
+		[Fact]
+		public void JTokenWithObjectToString() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			var json = JToken.FromObject(new { test1 = 1, test2 = "222" });
+			item = new JTokenTestMap { jtoken_to_string = json };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			//update
+			json = JToken.FromObject(new { test2 = 33, test3 = "333" });
+			item.jtoken_to_string = json;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			item.jtoken_to_string = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			//update set
+			json = JToken.FromObject(new { testa = 455, test31 = "666" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jtoken_to_string, json).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jtoken_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void JTokenWithArrayToString() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			var json = JArray.FromObject(new[] { "a", "b" });
+			item = new JTokenTestMap { jtoken_to_string = json };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			//update
+			json = JArray.FromObject(new[] { "333", "zzz" });
+			item.jtoken_to_string = json;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			item.jtoken_to_string = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			//update set
+			json = JArray.FromObject(new[] { "zxzz", "sdfsdf" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jtoken_to_string, json).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jtoken_to_string);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jtoken_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jtoken_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == json).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jtoken_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void JArrayToString() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jarray_to_string);
+
+			var json = JArray.FromObject(new[] { "a", "b" });
+			item = new JTokenTestMap { jarray_to_string = json };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jarray_to_string);
+
+			//update
+			json = JArray.FromObject(new[] { "333", "zzz" });
+			item.jarray_to_string = json;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jarray_to_string);
+
+			item.jarray_to_string = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jarray_to_string);
+
+			//update set
+			json = JArray.FromObject(new[] { "zxzz", "sdfsdf" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jarray_to_string, json).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jarray_to_string);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jarray_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jarray_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == json).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jarray_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void JObjectToString() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jobject_to_string);
+
+			var json = JObject.FromObject(new { test1 = 1, test2 = "222" });
+			item = new JTokenTestMap { jobject_to_string = json };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jobject_to_string);
+
+			//update
+			json = JObject.FromObject(new { test2 = 33, test3 = "333" });
+			item.jobject_to_string = json;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jobject_to_string);
+
+			item.jobject_to_string = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jobject_to_string);
+
+			//update set
+			json = JObject.FromObject(new { testa = 455, test31 = "666" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jobject_to_string, json).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json, find.jobject_to_string);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.jobject_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == json).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.jobject_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == json).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.jobject_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void StringToJToken() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jtoken);
+
+			var json = JToken.FromObject(new { test1 = 1, test2 = "222" });
+			var whereJson = JToken.FromObject(new { test2 = "222" });
+			item = new JTokenTestMap { string_to_jtoken = json.ToString() };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test2"], JToken.Parse(find.string_to_jtoken)["test2"]);
+
+			//update
+			json = JToken.FromObject(new { test2 = 33, test3 = "333" });
+			whereJson = JToken.FromObject(new { test3 = "333" });
+			item.string_to_jtoken = json.ToString();
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test3"], JToken.Parse(find.string_to_jtoken)["test3"]);
+
+			item.string_to_jtoken = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jtoken == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jtoken);
+
+			//update set
+			json = JToken.FromObject(new { testa = 455, test31 = "666" });
+			whereJson = JToken.FromObject(new { test31 = "666" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jtoken, json.ToString()).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test31"], JToken.Parse(find.string_to_jtoken)["test31"]);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jtoken, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jtoken == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jtoken);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && JToken.Parse(a.string_to_jtoken).Contains(whereJson)).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jtoken == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void StringToJObject() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jobject);
+
+			var json = JObject.FromObject(new { test1 = 1, test2 = "222" });
+			item = new JTokenTestMap { string_to_jobject = json.ToString() };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test1")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test2"], JObject.Parse(find.string_to_jobject)["test2"]);
+
+			//update
+			json = JObject.FromObject(new { test2 = 33, test3 = "333" });
+			item.string_to_jobject = json.ToString();
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test3")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test3"], JObject.Parse(find.string_to_jobject)["test3"]);
+
+			item.string_to_jobject = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test3")).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jobject == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jobject);
+
+			//update set
+			json = JObject.FromObject(new { testa = 455, test31 = "666" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jobject, json.ToString()).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test31")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json["test31"], JObject.Parse(find.string_to_jobject)["test31"]);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jobject, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test31")).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jobject == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jobject);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && JObject.Parse(a.string_to_jobject).ContainsKey("test31")).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jobject == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void StringToJArray() {
+			//insert
+			var orm = g.pgsql;
+			var item = new JTokenTestMap { };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jarray);
+
+			var json = JArray.FromObject(new[] { "aa", "bb" });
+			item = new JTokenTestMap { string_to_jarray = json.ToString() };
+			Assert.Equal(1, orm.Insert<JTokenTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("bb")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json[1], JArray.Parse(find.string_to_jarray)[1]);
+
+			//update
+			json = JArray.FromObject(new[] { "aa", "dddd" });
+			item.string_to_jarray = json.ToString();
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("dddd")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json[1], JArray.Parse(find.string_to_jarray)[1]);
+
+			item.string_to_jarray = null;
+			Assert.Equal(1, orm.Update<JTokenTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("dddd")).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jarray == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jarray);
+
+			//update set
+			json = JArray.FromObject(new[] { "aa", "bdfdfb" });
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jarray, json.ToString()).ExecuteAffrows());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("bdfdfb")).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(json[1], JArray.Parse(find.string_to_jarray)[1]);
+
+			Assert.Equal(1, orm.Update<JTokenTestMap>().Where(a => a.id == item.id).Set(a => a.string_to_jarray, null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("bdfdfb")).First());
+			find = orm.Select<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jarray == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.string_to_jarray);
+
+			//delete
+			Assert.Equal(0, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && JArray.Parse(a.string_to_jarray).Contains("bdfdfb")).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<JTokenTestMap>().Where(a => a.id == item.id && a.string_to_jarray == null).ExecuteAffrows());
+			Assert.Null(orm.Select<JTokenTestMap>().Where(a => a.id == item.id).First());
+		}
+	}
+}

FreeSql.Tests/PostgreSQL/MapType/ToStringTest.cs

@@ -0,0 +1,557 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.PostgreSQLMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = g.pgsql;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.pgsql;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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.pgsql;
+			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/PostgreSQL/PostgreSQLExpression/OtherTest.cs

@@ -79,10 +79,10 @@ namespace FreeSql.Tests.PostgreSQLExpression {
 			var sql3 = select.Where(a => a.testFieldJObject.ContainsKey("a")).ToList();
 			var sql4 = select.Where(a => a.testFieldJObject.ContainsKey("a") == false).ToList();
 
-			var sql5 = select.Where(a => a.testFieldJArray.Contains(JToken.Parse("{a:1}"))).ToList();
+			var sql5 = select.Where(a => a.testFieldJArray.Contains(1)).ToList();
-			var sql6 = select.Where(a => a.testFieldJArray.Contains(JToken.Parse("{a:1}")) == false).ToList();
+			var sql6 = select.Where(a => a.testFieldJArray.Contains(1) == false).ToList();
-			var sql555 = select.Where(a => a.testFieldJArray.Contains("{a:1}")).ToList();
+			var sql555 = select.Where(a => a.testFieldJArray.Contains(1)).ToList();
-			var sql666 = select.Where(a => a.testFieldJArray.Contains("{a:1}") == false).ToList();
+			var sql666 = select.Where(a => a.testFieldJArray.Contains(1) == false).ToList();
 
 			//var sql7 = select.Where(a => a.testFieldJToken.Any()).ToList();
 			//var sql8 = select.Where(a => a.testFieldJToken.Any() == false).ToList();

FreeSql.Tests/SqlServer/MapType/EnumTest.cs

@@ -0,0 +1,263 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerMapType {
+	[Collection("SqlServerCollection")]
+	public class EnumTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public EnumTest(SqlServerFixture sqlserverFixture) {
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		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 { 中国人, abc, 香港 }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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 = _sqlserverFixture.SqlServer;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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 = _sqlserverFixture.SqlServer;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).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 = _sqlserverFixture.SqlServer;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).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/SqlServer/MapType/ToStringTest.cs

@@ -0,0 +1,565 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerMapType {
+	[Collection("SqlServerCollection")]
+	public class ToStringTest {
+		SqlServerFixture _sqlserverFixture;
+
+		public ToStringTest(SqlServerFixture sqlserverFixture) {
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		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 { 中国人, abc, 香港 }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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 = _sqlserverFixture.SqlServer;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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 = _sqlserverFixture.SqlServer;
+			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/Sqlite/MapType/EnumTest.cs

@@ -0,0 +1,254 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqliteMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = g.sqlite;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.sqlite;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.sqlite;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.香港).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.sqlite;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.香港).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/Sqlite/MapType/ToStringTest.cs

@@ -0,0 +1,557 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqliteMapType {
+	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 { 中国人, abc, 香港 }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = g.sqlite;
+			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.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.香港, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.中国人;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, 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.香港).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.香港, 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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.香港).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.sqlite;
+			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.中国人 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.中国人).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.中国人, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.香港;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.香港, 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.香港).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.中国人).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.香港).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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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.sqlite;
+			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/FreeSql.csproj

@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<TargetFramework>netstandard2.0</TargetFramework>
-		<Version>0.5.4.1</Version>
+		<Version>0.5.5</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>

FreeSql/Internal/CommonProvider/UpdateProvider.cs

@@ -299,12 +299,15 @@ namespace FreeSql.Internal.CommonProvider {
 			_commonExpression.ExpressionSelectColumn_MemberAccess(null, cols, SelectTableInfoType.From, column?.Body, true, null);
 			if (cols.Count != 1) return this;
 			var col = cols.First();
+			object paramVal = null;
+			if (col.Column.Attribute.MapType == typeof(TMember)) paramVal = value;
+			else paramVal = Utils.GetDataReaderValue(col.Column.Attribute.MapType, value);
 			_set.Append(", ").Append(_commonUtils.QuoteSqlName(col.Column.Attribute.Name)).Append(" = ");
 			if (_noneParameter) {
-				_set.Append(_commonUtils.GetNoneParamaterSqlValue(_params, col.Column.Attribute.MapType, value));
+				_set.Append(_commonUtils.GetNoneParamaterSqlValue(_params, col.Column.Attribute.MapType, paramVal));
 			} else {
 				_set.Append(_commonUtils.QuoteWriteParamter(col.Column.Attribute.MapType, $"{_commonUtils.QuoteParamterName("p_")}{_params.Count}"));
-				_commonUtils.AppendParamter(_params, null, col.Column.Attribute.MapType, value);
+				_commonUtils.AppendParamter(_params, null, col.Column.Attribute.MapType, paramVal);
 			}
 			//foreach (var t in _source) Utils.FillPropertyValue(t, tryf.CsName, value);
 			return this;

FreeSql/PostgreSQL/PostgreSQLExpression.cs

@@ -105,7 +105,10 @@ namespace FreeSql.PostgreSQL {
 									case "Any": return $"(jsonb_array_length(coalesce({left},'[]')) > 0)";
 									case "Contains":
 										var json = getExp(callExp.Arguments[argIndex]);
-										if (json.StartsWith("'") && json.EndsWith("'")) return $"(coalesce({left},'{{}}') @> {_common.FormatSql("{0}", JToken.Parse(json.Trim('\'')))})";
+										if (objType == typeof(JArray))
+											return $"(coalesce({left},'[]') ? ({json})::varchar)";
+										if (json.StartsWith("'") && json.EndsWith("'"))
+											return $"(coalesce({left},'{{}}') @> {_common.FormatSql("{0}", JToken.Parse(json.Trim('\'')))})";
 										return $"(coalesce({left},'{{}}') @> ({json})::jsonb)";
 									case "ContainsKey": return $"(coalesce({left},'{{}}') ? {getExp(callExp.Arguments[argIndex])})";
 									case "Concat":

FreeSql/Sqlite/SqliteCodeFirst.cs

@@ -213,7 +213,7 @@ namespace FreeSql.Sqlite {
 				if (isIndent == false && tb.Primarys.Any()) {
 					sb.Append(" \r\n  PRIMARY KEY (");
 					foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
-					sb.Remove(sb.Length - 2, 2).Append(")");
+					sb.Remove(sb.Length - 2, 2).Append("),");
 				}
 				foreach (var uk in tb.Uniques) {
 					sb.Append(" \r\n  CONSTRAINT ").Append(_commonUtils.QuoteSqlName(uk.Key)).Append(" UNIQUE(");