## v0.9.18

- 增加 PostgreSQL 的 Odbc 访问提供，相比 FreeSql.Provider.PostgreSQL 支持的类型更少；
- 增加 通用的 Odbc 访问提供，不能迁移实体到数据库，不能 Skip 这样来分页，理论上能 crud 所有 odbc 数据库；

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcDeleteTest.cs

@@ -0,0 +1,90 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+    public class OdbcDeleteTest
+    {
+        IDelete<Topic> delete => g.odbc.Delete<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+        [Table(Name = "tb_topic22211")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int? Clicks { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void Dywhere()
+        {
+            Assert.Null(g.odbc.Delete<Topic>().ToSql());
+            var sql = g.odbc.Delete<Topic>(new[] { 1, 2 }).ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+            sql = g.odbc.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+            sql = g.odbc.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+            sql = g.odbc.Delete<Topic>(new { id = 1 }).ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+        }
+
+        [Fact]
+        public void Where()
+        {
+            var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+            sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE (id = @id)", sql);
+
+            var item = new Topic { Id = 1, Title = "newtitle" };
+            sql = delete.Where(item).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            sql = delete.Where(items).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void WhereExists()
+        {
+
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+
+            var id = g.odbc.Insert<Topic>(new Topic { Title = "xxxx", CreateTime = DateTime.Now }).ExecuteIdentity();
+            Assert.Equal(1, delete.Where(a => a.Id == id).ExecuteAffrows());
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            Assert.Null(g.odbc.Delete<Topic>().ToSql());
+            var sql = g.odbc.Delete<Topic>(new[] { 1, 2 }).AsTable(a => "tb_topic22211AsTable").ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+            sql = g.odbc.Delete<Topic>(new Topic { Id = 1, Title = "test" }).AsTable(a => "tb_topic22211AsTable").ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1)", sql);
+
+            sql = g.odbc.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).AsTable(a => "tb_topic22211AsTable").ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+            sql = g.odbc.Delete<Topic>(new { id = 1 }).AsTable(a => "tb_topic22211AsTable").ToSql();
+            Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1)", sql);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcInsertTest.cs

@@ -0,0 +1,141 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+    public class OdbcInsertTest
+    {
+        IInsert<Topic> insert => g.odbc.Insert<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int? Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void AppendData()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Parse("2019-09-19 20:09:37") });
+
+            var sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items.First()).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title], [CreateTime]) VALUES(0, N'newtitle0', '2019-09-19 20:09:37')", sql);
+
+            sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title], [CreateTime]) VALUES(0, N'newtitle0', '2019-09-19 20:09:37'), (100, N'newtitle1', '2019-09-19 20:09:37'), (200, N'newtitle2', '2019-09-19 20:09:37'), (300, N'newtitle3', '2019-09-19 20:09:37'), (400, N'newtitle4', '2019-09-19 20:09:37'), (500, N'newtitle5', '2019-09-19 20:09:37'), (600, N'newtitle6', '2019-09-19 20:09:37'), (700, N'newtitle7', '2019-09-19 20:09:37'), (800, N'newtitle8', '2019-09-19 20:09:37'), (900, N'newtitle9', '2019-09-19 20:09:37')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Title]) VALUES(N'newtitle0'), (N'newtitle1'), (N'newtitle2'), (N'newtitle3'), (N'newtitle4'), (N'newtitle5'), (N'newtitle6'), (N'newtitle7'), (N'newtitle8'), (N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+        }
+
+        [Fact]
+        public void InsertColumns()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+            var sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Title]) VALUES(N'newtitle0'), (N'newtitle1'), (N'newtitle2'), (N'newtitle3'), (N'newtitle4'), (N'newtitle5'), (N'newtitle6'), (N'newtitle7'), (N'newtitle8'), (N'newtitle9')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+        }
+        [Fact]
+        public void IgnoreColumns()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+            var sql = insert.AppendData(items).IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime, a.TypeGuid }).ToSql();
+            Assert.Equal("INSERT INTO [tb_topic]([Clicks]) VALUES(0), (100), (200), (300), (400), (500), (600), (700), (800), (900)", sql);
+
+            g.odbc.Delete<TopicIgnore>().Where("1=1").ExecuteAffrows();
+            var itemsIgnore = new List<TopicIgnore>();
+            for (var a = 0; a < 2072; a++) itemsIgnore.Add(new TopicIgnore { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+            g.odbc.Insert<TopicIgnore>().AppendData(itemsIgnore).IgnoreColumns(a => new { a.Title }).ExecuteAffrows();
+            Assert.Equal(2072, itemsIgnore.Count);
+            Assert.Equal(2072, g.odbc.Select<TopicIgnore>().Where(a => a.Title == null).Count());
+        }
+        [Table(Name = "tb_topicIgnoreColumns")]
+        class TopicIgnore
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+            Assert.Equal(1, insert.AppendData(items.First()).ExecuteAffrows());
+            Assert.Equal(10, insert.AppendData(items).ExecuteAffrows());
+
+            //items = Enumerable.Range(0, 9989).Select(a => new Topic { Title = "newtitle" + a, CreateTime = DateTime.Now }).ToList();
+            //Assert.Equal(9989, g.odbc.Insert<Topic>(items).ExecuteAffrows());
+        }
+        [Fact]
+        public void ExecuteIdentity()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+            Assert.NotEqual(0, insert.AppendData(items.First()).ExecuteIdentity());
+
+
+            //items = Enumerable.Range(0, 9999).Select(a => new Topic { Title = "newtitle" + a, CreateTime = DateTime.Now }).ToList();
+            //var lastId = g.sqlite.Select<Topic>().Max(a => a.Id);
+            //Assert.NotEqual(lastId, g.odbc.Insert<Topic>(items).ExecuteIdentity());
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Parse("2019-09-19 20:01:51") });
+
+            var sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items.First()).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title], [CreateTime]) VALUES(0, N'newtitle0', '2019-09-19 20:01:51')", sql);
+
+            sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title], [CreateTime]) VALUES(0, N'newtitle0', '2019-09-19 20:01:51'), (100, N'newtitle1', '2019-09-19 20:01:51'), (200, N'newtitle2', '2019-09-19 20:01:51'), (300, N'newtitle3', '2019-09-19 20:01:51'), (400, N'newtitle4', '2019-09-19 20:01:51'), (500, N'newtitle5', '2019-09-19 20:01:51'), (600, N'newtitle6', '2019-09-19 20:01:51'), (700, N'newtitle7', '2019-09-19 20:01:51'), (800, N'newtitle8', '2019-09-19 20:01:51'), (900, N'newtitle9', '2019-09-19 20:01:51')", sql);
+
+            sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).InsertColumns(a => a.Title).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Title]) VALUES(N'newtitle0'), (N'newtitle1'), (N'newtitle2'), (N'newtitle3'), (N'newtitle4'), (N'newtitle5'), (N'newtitle6'), (N'newtitle7'), (N'newtitle8'), (N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => new { a.Title, a.TypeGuid }).InsertColumns(a => a.Title).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Title]) VALUES(N'newtitle0'), (N'newtitle1'), (N'newtitle2'), (N'newtitle3'), (N'newtitle4'), (N'newtitle5'), (N'newtitle6'), (N'newtitle7'), (N'newtitle8'), (N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(0, N'newtitle0'), (100, N'newtitle1'), (200, N'newtitle2'), (300, N'newtitle3'), (400, N'newtitle4'), (500, N'newtitle5'), (600, N'newtitle6'), (700, N'newtitle7'), (800, N'newtitle8'), (900, N'newtitle9')", sql);
+
+            sql = insert.IgnoreColumns(a => new { a.CreateTime, a.Title, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+            Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks]) VALUES(0), (100), (200), (300), (400), (500), (600), (700), (800), (900)", sql);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcUpdateTest.cs

@@ -0,0 +1,146 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+    public class OdbcUpdateTest
+    {
+        IUpdate<Topic> update => g.odbc.Update<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int? Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void Dywhere()
+        {
+            Assert.Null(g.odbc.Update<Topic>().ToSql());
+            Assert.Equal("UPDATE [tb_topic] SET title='test' \r\nWHERE ([Id] = 1 OR [Id] = 2)", g.odbc.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").ToSql());
+            Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1)", g.odbc.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").ToSql());
+            Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1 OR [Id] = 2)", g.odbc.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").ToSql());
+            Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1)", g.odbc.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").ToSql());
+        }
+
+        [Fact]
+        public void SetSource()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => a.TypeGuid).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Clicks] = NULL, [Title] = N'newtitle', [CreateTime] = '1970-01-01 00:00:00' WHERE ([Id] = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+            items[0].Clicks = null;
+
+            sql = update.SetSource(items).IgnoreColumns(a => a.TypeGuid).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Clicks] = CASE [Id] WHEN 1 THEN NULL WHEN 2 THEN 100 WHEN 3 THEN 200 WHEN 4 THEN 300 WHEN 5 THEN 400 WHEN 6 THEN 500 WHEN 7 THEN 600 WHEN 8 THEN 700 WHEN 9 THEN 800 WHEN 10 THEN 900 END, [Title] = CASE [Id] WHEN 1 THEN N'newtitle0' WHEN 2 THEN N'newtitle1' WHEN 3 THEN N'newtitle2' WHEN 4 THEN N'newtitle3' WHEN 5 THEN N'newtitle4' WHEN 6 THEN N'newtitle5' WHEN 7 THEN N'newtitle6' WHEN 8 THEN N'newtitle7' WHEN 9 THEN N'newtitle8' WHEN 10 THEN N'newtitle9' END, [CreateTime] = CASE [Id] WHEN 1 THEN '1970-01-01 00:00:00' WHEN 2 THEN '1970-01-01 00:00:00' WHEN 3 THEN '1970-01-01 00:00:00' WHEN 4 THEN '1970-01-01 00:00:00' WHEN 5 THEN '1970-01-01 00:00:00' WHEN 6 THEN '1970-01-01 00:00:00' WHEN 7 THEN '1970-01-01 00:00:00' WHEN 8 THEN '1970-01-01 00:00:00' WHEN 9 THEN '1970-01-01 00:00:00' WHEN 10 THEN '1970-01-01 00:00:00' END WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+            sql = update.SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime, a.TypeGuid }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Title] = CASE [Id] WHEN 1 THEN N'newtitle0' WHEN 2 THEN N'newtitle1' WHEN 3 THEN N'newtitle2' WHEN 4 THEN N'newtitle3' WHEN 5 THEN N'newtitle4' WHEN 6 THEN N'newtitle5' WHEN 7 THEN N'newtitle6' WHEN 8 THEN N'newtitle7' WHEN 9 THEN N'newtitle8' WHEN 10 THEN N'newtitle9' END WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+            sql = update.SetSource(items).IgnoreColumns(a => a.TypeGuid).Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [CreateTime] = '2020-01-01 00:00:00' WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void IgnoreColumns()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => new { a.Clicks, a.CreateTime, a.TypeGuid }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Title] = N'newtitle' WHERE ([Id] = 1)", sql);
+        }
+        [Fact]
+        public void UpdateColumns()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).UpdateColumns(a => a.Title).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Title] = N'newtitle' WHERE ([Id] = 1)", sql);
+        }
+        [Fact]
+        public void Set()
+        {
+            var sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Title] = N'newtitle' WHERE ([Id] = 1)", sql);
+
+            sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Title] = N'newtitle', [CreateTime] = '2020-01-01 00:00:00' WHERE ([Id] = 1)", sql);
+
+            sql = update.Set(a => a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Clicks] = isnull([Clicks], 0) * 10 / 1 WHERE ([Id] = 1)", sql);
+
+            sql = update.Set(a => a.Id - 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Id] = ([Id] - 10) WHERE ([Id] = 1)", sql);
+
+            int incrv = 10;
+            sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Clicks] = isnull([Clicks], 0) * 10 / 1 WHERE ([Id] = 1)", sql);
+
+            sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Id] = ([Id] - 10) WHERE ([Id] = 1)", sql);
+
+            sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Clicks] = [Clicks] * 10 / 1 WHERE ([Id] = 1)", sql);
+
+            sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET [Id] = 10 WHERE ([Id] = 1)", sql);
+        }
+        [Fact]
+        public void SetRaw()
+        {
+            var sql = update.Where(a => a.Id == 1).SetRaw("clicks = clicks + ?", new { incrClick = 1 }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET clicks = clicks + ? WHERE ([Id] = 1)", sql);
+        }
+        [Fact]
+        public void Where()
+        {
+            var sql = update.Where(a => a.Id == 1).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] = 1)", sql);
+
+            sql = update.Where("id = ?", new { id = 1 }).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE (id = ?)", sql);
+
+            var item = new Topic { Id = 1, Title = "newtitle" };
+            sql = update.Where(item).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+            sql = update.Where(items).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void WhereExists()
+        {
+
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            var time = DateTime.Now;
+            var items222 = g.odbc.Select<Topic>().Where(a => a.CreateTime > time).Limit(10).ToList();
+
+            update.SetSource(items.First()).NoneParameter().ExecuteAffrows();
+            update.SetSource(items).NoneParameter().ExecuteAffrows();
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            Assert.Null(g.odbc.Update<Topic>().ToSql());
+            Assert.Equal("UPDATE [tb_topicAsTable] SET title='test' \r\nWHERE ([Id] = 1 OR [Id] = 2)", g.odbc.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1)", g.odbc.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1 OR [Id] = 2)", g.odbc.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1)", g.odbc.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/MapType/EnumTest.cs

@@ -0,0 +1,263 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultMapType
+{
+    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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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/FreeSql.Tests.Provider.Odbc/Default/MapType/ToStringTest.cs

@@ -0,0 +1,570 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultMapType
+{
+    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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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.odbc;
+            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/FreeSql.Tests.Provider.Odbc/Default/OdbcAdo/OdbcAdoTest.cs

@@ -0,0 +1,93 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Data.Odbc;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+    public class OdbcAdoTest
+    {
+        [Fact]
+        public void Pool()
+        {
+            var t1 = g.odbc.Ado.MasterPool.StatisticsFullily;
+        }
+
+        [Fact]
+        public void SlavePools()
+        {
+            var t2 = g.odbc.Ado.SlavePools.Count;
+        }
+
+        [Fact]
+        public void ExecuteReader()
+        {
+
+        }
+        [Fact]
+        public void ExecuteArray()
+        {
+
+        }
+        [Fact]
+        public void ExecuteNonQuery()
+        {
+
+        }
+        [Fact]
+        public void ExecuteScalar()
+        {
+
+        }
+
+        [Fact]
+        public void Query()
+        {
+
+            //var tt1 = g.odbc.Select<xxx>()
+            //	.LeftJoin(a => a.ParentId == a.Parent.Id)
+            //	.ToSql(a => new { a.Id, a.Title });
+
+            //var tt2result = g.odbc.Select<xxx>()
+            //	.LeftJoin(a => a.ParentId == a.Parent.Id)
+            //	.ToList(a => new { a.Id, a.Title });
+
+            //var tt = g.odbc.Select<xxx>()
+            //	.LeftJoin<xxx>((a, b) => b.Id == a.Id)
+            //	.ToSql(a => new { a.Id, a.Title });
+
+            //var ttresult = g.odbc.Select<xxx>()
+            //	.LeftJoin<xxx>((a, b) => b.Id == a.Id)
+            //	.ToList(a => new { a.Id, a.Title });
+
+            var tnsql1 = g.odbc.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToSql(a => a.Id);
+
+            var tn1 = g.odbc.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToList(a => a.Id);
+
+            var t3 = g.odbc.Ado.Query<xxx>("select * from xxx");
+
+            var t4 = g.odbc.Ado.Query<(int, int, string, string DateTime)>("select * from xxx");
+
+            var t5 = g.odbc.Ado.Query<dynamic>(System.Data.CommandType.Text, "select * from xxx where Id = ?",
+                new OdbcParameter("@Id", 1));
+        }
+
+        [Fact]
+        public void QueryMultipline()
+        {
+            var tnsql1 = g.odbc.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToSql(a => a.Id);
+
+            var t3 = g.odbc.Ado.Query<xxx, (int, string, string), dynamic>("select * from xxx; select * from xxx; select * from xxx");
+        }
+
+        class xxx
+        {
+            public int Id { get; set; }
+            public int ParentId { get; set; }
+            public xxx Parent { get; set; }
+            public string Title { get; set; }
+            public string Url { get; set; }
+            public DateTime Create_time { get; set; }
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcAopTest.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+    public class OdbcAopTest
+    {
+
+        class TestAuditValue
+        {
+            public Guid id { get; set; }
+            [Now]
+            public DateTime createtime { get; set; }
+        }
+        class NowAttribute: Attribute { }
+
+        [Fact]
+        public void AuditValue()
+        {
+            var date = DateTime.Now.Date;
+            var item = new TestAuditValue();
+
+            EventHandler<Aop.AuditValueEventArgs> audit = (s, e) =>
+             {
+                 if (e.Property.GetCustomAttribute<NowAttribute>(false) != null)
+                     e.Value = DateTime.Now.Date;
+             };
+            g.odbc.Aop.AuditValue += audit;
+
+            g.odbc.Insert(item).ExecuteAffrows();
+
+            g.odbc.Aop.AuditValue -= audit;
+
+            Assert.Equal(item.createtime, date);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcCodeFirstTest.cs

@@ -0,0 +1,148 @@
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.Default
+{
+
+    public class OdbcCodeFirstTest
+    {
+        [Fact]
+        public void 中文表_字段()
+        {
+            var item = new 测试中文表
+            {
+                标题 = "测试标题",
+                创建时间 = DateTime.Now
+            };
+            Assert.Equal(1, g.odbc.Insert<测试中文表>().AppendData(item).ExecuteAffrows());
+            Assert.NotEqual(Guid.Empty, item.编号);
+            var item2 = g.odbc.Select<测试中文表>().Where(a => a.编号 == item.编号).First();
+            Assert.NotNull(item2);
+            Assert.Equal(item.编号, item2.编号);
+            Assert.Equal(item.标题, item2.标题);
+        }
+        class 测试中文表
+        {
+            [Column(IsPrimary = true)]
+            public Guid 编号 { get; set; }
+
+            public string 标题 { get; set; }
+
+            public DateTime 创建时间 { get; set; }
+        }
+
+        IInsert<tb_alltype_notime> insert => g.odbc.Insert<tb_alltype_notime>();
+        ISelect<tb_alltype_notime> select => g.odbc.Select<tb_alltype_notime>();
+
+        [Fact]
+        public void CurdAllField()
+        {
+            var item = new tb_alltype_notime { };
+            item.Id = (int)insert.AppendData(item).ExecuteIdentity();
+
+            var newitem = select.Where(a => a.Id == item.Id).ToOne();
+
+            var item2 = new tb_alltype_notime
+            {
+                testFieldBool = true,
+                testFieldBoolNullable = true,
+                testFieldByte = byte.MaxValue,
+                testFieldByteNullable = byte.MinValue,
+                testFieldBytes = Encoding.UTF8.GetBytes("我是中国人"),
+                testFieldDateTime = DateTime.Now,
+                testFieldDateTimeNullable = DateTime.Now.AddHours(1),
+                testFieldDecimal = 998.99M,
+                testFieldDecimalNullable = 999.12M,
+                testFieldDouble = 99.199,
+                testFieldDoubleNullable = 99.211,
+                testFieldEnum1 = TableAllTypeEnumType1.e2,
+                testFieldEnum1Nullable = TableAllTypeEnumType1.e3,
+                testFieldEnum2 = TableAllTypeEnumType2.f3,
+                testFieldEnum2Nullable = TableAllTypeEnumType2.f2,
+                testFieldFloat = 0.99F,
+                testFieldFloatNullable = 0.11F,
+                testFieldGuid = Guid.NewGuid(),
+                testFieldGuidNullable = Guid.NewGuid(),
+                testFieldInt = int.MaxValue,
+                testFieldIntNullable = int.MinValue,
+                testFieldLong = long.MaxValue,
+                testFieldSByte = sbyte.MaxValue,
+                testFieldSByteNullable = sbyte.MinValue,
+                testFieldShort = short.MaxValue,
+                testFieldShortNullable = short.MinValue,
+                testFieldString = "我是中国人string",
+                testFieldUInt = uint.MaxValue,
+                testFieldUIntNullable = uint.MinValue,
+                testFieldULong = ulong.MaxValue,
+                testFieldULongNullable = ulong.MinValue,
+                testFieldUShort = ushort.MaxValue,
+                testFieldUShortNullable = ushort.MinValue,
+                testFielLongNullable = long.MinValue
+            };
+
+            var sqlPar = insert.AppendData(item2).ToSql();
+            var sqlText = insert.AppendData(item2).NoneParameter().ToSql();
+            item2.Id = (int)insert.AppendData(item2).NoneParameter().ExecuteIdentity();
+
+            var sqlTestUpdate = g.odbc.Update<tb_alltype_notime>().SetSource(item2).NoneParameter().ToSql();
+
+            var item3 = insert.AppendData(item2).ExecuteIdentity();
+            var newitem2 = select.Where(a => a.Id == item2.Id).ToOne();
+
+            var items = select.ToList();
+        }
+
+        [Table(Name = "tb_alltype_notime")]
+        class tb_alltype_notime
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+
+            [Column(Name = "testFieldBool1111")]
+            public bool testFieldBool { get; set; }
+            public sbyte testFieldSByte { get; set; }
+            public short testFieldShort { get; set; }
+            public int testFieldInt { get; set; }
+            public long testFieldLong { get; set; }
+            public byte testFieldByte { get; set; }
+            public ushort testFieldUShort { get; set; }
+            public uint testFieldUInt { get; set; }
+            public ulong testFieldULong { get; set; }
+            public double testFieldDouble { get; set; }
+            public float testFieldFloat { get; set; }
+            public decimal testFieldDecimal { get; set; }
+            public DateTime testFieldDateTime { get; set; }
+            public byte[] testFieldBytes { get; set; }
+            public string testFieldString { get; set; }
+            public Guid testFieldGuid { get; set; }
+
+            public bool? testFieldBoolNullable { get; set; }
+            public sbyte? testFieldSByteNullable { get; set; }
+            public short? testFieldShortNullable { get; set; }
+            public int? testFieldIntNullable { get; set; }
+            public long? testFielLongNullable { get; set; }
+            public byte? testFieldByteNullable { get; set; }
+            public ushort? testFieldUShortNullable { get; set; }
+            public uint? testFieldUIntNullable { get; set; }
+            public ulong? testFieldULongNullable { get; set; }
+            public double? testFieldDoubleNullable { get; set; }
+            public float? testFieldFloatNullable { get; set; }
+            public decimal? testFieldDecimalNullable { get; set; }
+            public DateTime? testFieldDateTimeNullable { get; set; }
+            public Guid? testFieldGuidNullable { get; set; }
+
+            public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+            public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+            public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+            public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+        }
+
+        public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+        [Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/ConvertTest.cs

@@ -0,0 +1,168 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class ConvertTest
+    {
+        ISelect<Topic> select => g.odbc.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+
+        [Fact]
+        public void ToBoolean()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (Convert.ToBoolean(a.Clicks) ? 1 : 0) > 0).ToList());
+            data.Add(select.Where(a => (bool.Parse(a.Clicks.ToString()) ? 1 : 0) > 0).ToList());
+        }
+        [Fact]
+        public void ToByte()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToByte(a.Clicks % 255) > 0).ToList());
+            data.Add(select.Where(a => byte.Parse((a.Clicks % 255).ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToChar()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToChar(a.Clicks) == '1').ToList());
+            data.Add(select.Where(a => char.Parse(a.Clicks.ToString()) == '1').ToList());
+        }
+        [Fact]
+        public void ToDateTime()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDateTime(a.CreateTime.ToString()).Year > 0).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()).Year > 0).ToList());
+        }
+        [Fact]
+        public void ToDecimal()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDecimal(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => decimal.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToDouble()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDouble(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => double.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt16()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Convert.ToInt16(a.Clicks) > 0).ToList());
+            //data.Add(select.Where(a => short.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt32()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (int)a.Clicks > 0).ToList());
+            data.Add(select.Where(a => Convert.ToInt32(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => int.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt64()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToInt64(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => long.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToSByte()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToSByte(a.Clicks % 128) > 0).ToList());
+            data.Add(select.Where(a => sbyte.Parse((a.Clicks % 128).ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToSingle()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToSingle(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => float.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToString(a.Clicks).Equals("")).ToList());
+            data.Add(select.Where(a => a.Clicks.ToString().Equals("")).ToList());
+        }
+        [Fact]
+        public void ToUInt16()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Convert.ToUInt16(a.Clicks) > 0).ToList());
+            //data.Add(select.Where(a => ushort.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToUInt32()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToUInt32(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => uint.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToUInt64()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToUInt64(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => ulong.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+
+        [Fact]
+        public void Guid_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Guid.Parse(Guid.NewGuid().ToString()) == Guid.Empty).ToList());
+        }
+
+        [Fact]
+        public void Guid_NewGuid()
+        {
+            var data = new List<object>();
+            data.Add(select.OrderBy(a => Guid.NewGuid()).Limit(10).ToList());
+        }
+
+        [Fact]
+        public void Random()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => new Random().Next() > a.Clicks).Limit(10).ToList());
+            data.Add(select.Where(a => new Random().NextDouble() > a.Clicks).Limit(10).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/DateTimeTest.cs

@@ -0,0 +1,321 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class DateTimeTest
+    {
+        ISelect<Topic> select => g.odbc.Select<Topic>();
+
+        [Table(Name = "tb_topic111333")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        [Table(Name = "TestTypeInfo333")]
+        class TestTypeInfo
+        {
+            [Column(IsIdentity = true)]
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+            public DateTime Time { get; set; }
+        }
+        [Table(Name = "TestTypeParentInfo23123")]
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+            public DateTime Time2 { get; set; }
+        }
+        [Fact]
+        public void Now()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+        }
+        [Fact]
+        public void UtcNow()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.UtcNow.Date).ToList());
+        }
+        [Fact]
+        public void MinValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.MinValue.Date).ToList());
+        }
+        [Fact]
+        public void MaxValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.MaxValue.Date).ToList());
+        }
+        [Fact]
+        public void Date()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+            data.Add(select.Where(a => a.Type.Time.Date > DateTime.Now.Date).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Date > DateTime.Now.Date).ToList());
+
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.CreateTime.Date).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Time.Date).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Parent.Time2.Date).TotalSeconds > 0).ToList());
+        }
+        [Fact]
+        public void TimeOfDay()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay == DateTime.Now.TimeOfDay).ToList());
+            data.Add(select.Where(a => a.Type.Time.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+        }
+        [Fact]
+        public void DayOfWeek()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+            data.Add(select.Where(a => a.Type.Time.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+        }
+        [Fact]
+        public void Day()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Day > DateTime.Now.Day).ToList());
+            data.Add(select.Where(a => a.Type.Time.Day > DateTime.Now.Day).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Day > DateTime.Now.Day).ToList());
+        }
+        [Fact]
+        public void DayOfYear()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.DayOfYear > DateTime.Now.DayOfYear).ToList());
+            data.Add(select.Where(a => a.Type.Time.DayOfYear > DateTime.Now.DayOfYear).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.DayOfYear > DateTime.Now.DayOfYear).ToList());
+        }
+        [Fact]
+        public void Month()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Month > DateTime.Now.Month).ToList());
+            data.Add(select.Where(a => a.Type.Time.Month > DateTime.Now.Month).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Month > DateTime.Now.Month).ToList());
+        }
+        [Fact]
+        public void Year()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Year > DateTime.Now.Year).ToList());
+            data.Add(select.Where(a => a.Type.Time.Year > DateTime.Now.Year).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Year > DateTime.Now.Year).ToList());
+        }
+        [Fact]
+        public void Hour()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Hour > DateTime.Now.Hour).ToList());
+            data.Add(select.Where(a => a.Type.Time.Hour > DateTime.Now.Hour).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Hour > DateTime.Now.Hour).ToList());
+        }
+        [Fact]
+        public void Minute()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Minute > DateTime.Now.Minute).ToList());
+            data.Add(select.Where(a => a.Type.Time.Minute > DateTime.Now.Minute).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Minute > DateTime.Now.Minute).ToList());
+        }
+        [Fact]
+        public void Second()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Second > DateTime.Now.Second).ToList());
+            data.Add(select.Where(a => a.Type.Time.Second > DateTime.Now.Second).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Second > DateTime.Now.Second).ToList());
+        }
+        [Fact]
+        public void Millisecond()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Millisecond > DateTime.Now.Millisecond).ToList());
+            data.Add(select.Where(a => a.Type.Time.Millisecond > DateTime.Now.Millisecond).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Millisecond > DateTime.Now.Millisecond).ToList());
+        }
+        [Fact]
+        public void Ticks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Ticks > DateTime.Now.Ticks).ToList());
+            data.Add(select.Where(a => a.Type.Time.Ticks > DateTime.Now.Ticks).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Ticks > DateTime.Now.Ticks).ToList());
+        }
+        [Fact]
+        public void Add()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddDays(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddDays(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddDays(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddHours(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddHours(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddHours(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMilliseconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMilliseconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMilliseconds(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMinutes(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMinutes(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMinutes(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddMonths()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMonths(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMonths(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMonths(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddSeconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddSeconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddSeconds(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddTicks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddTicks(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddTicks(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddTicks(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void AddYears()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddYears(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1) > DateTime.Now).ToList());
+        }
+        [Fact]
+        public void Subtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => a.Type.Time.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+
+            data.Add(select.Where(a => a.CreateTime.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => a.Type.Time.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+        }
+        [Fact]
+        public void 两个日期相减_效果同Subtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (a.CreateTime - DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => (a.Type.Time - DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => (a.Type.Parent.Time2 - DateTime.Now).TotalSeconds > 0).ToList());
+
+            data.Add(select.Where(a => (a.CreateTime - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => (a.Type.Time - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => (a.Type.Parent.Time2 - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+        }
+        [Fact]
+        public void this_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddYears(1).Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).Equals(DateTime.Now)).ToList());
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.ToString().Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+        }
+
+        [Fact]
+        public void DateTime_Compare()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.CompareTo(DateTime.Now) == 0).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+        }
+        [Fact]
+        public void DateTime_DaysInMonth()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.CreateTime.Year, a.CreateTime.Month) > 30).ToList());
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Time.Year, a.Type.Time.Month) > 30).ToList());
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Parent.Time2.Year, a.Type.Parent.Time2.Month) > 30).ToList());
+        }
+        [Fact]
+        public void DateTime_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.Equals(a.CreateTime.AddYears(1), DateTime.Now)).ToList());
+            data.Add(select.Where(a => DateTime.Equals(a.Type.Time.AddYears(1), DateTime.Now)).ToList());
+            data.Add(select.Where(a => DateTime.Equals(a.Type.Parent.Time2.AddYears(1), DateTime.Now)).ToList());
+        }
+        [Fact]
+        public void DateTime_IsLeapYear()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.CreateTime.Year)).ToList());
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Time.AddYears(1).Year)).ToList());
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Parent.Time2.AddYears(1).Year)).ToList());
+        }
+        [Fact]
+        public void DateTime_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()) > DateTime.Now).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.Type.Time.AddYears(1).ToString()) > DateTime.Now).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.Type.Parent.Time2.AddYears(1).ToString()) > DateTime.Now).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/MathTest.cs

@@ -0,0 +1,155 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class MathTest
+    {
+        ISelect<Topic> select => g.odbc.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+
+        [Fact]
+        public void PI()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.PI + a.Clicks > 0).ToList());
+        }
+        [Fact]
+        public void Abs()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Abs(-a.Clicks) > 0).ToList());
+        }
+        [Fact]
+        public void Sign()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Sign(-a.Clicks) > 0).ToList());
+        }
+        [Fact]
+        public void Floor()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Floor(a.Clicks + 0.5) == a.Clicks).ToList());
+        }
+        [Fact]
+        public void Ceiling()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Ceiling(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Round()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Round(a.Clicks + 0.5) == a.Clicks).ToList());
+            data.Add(select.Where(a => Math.Round(a.Clicks + 0.5, 1) > a.Clicks).ToList());
+        }
+        [Fact]
+        public void Exp()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Exp(1) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Log()
+        {
+            //var data = new List<object>();
+            //data.Add(select.Where(a => Math.Log(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Log10()
+        {
+            //var data = new List<object>();
+            //data.Add(select.Where(a => Math.Log10(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Pow()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Pow(2, a.Clicks) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Sqrt()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Sqrt(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Cos()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Cos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Sin()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Sin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Tan()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Tan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Acos()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Acos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Asin()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Asin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Atan()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Atan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Atan2()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Atan2(2, a.Clicks) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Truncate()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Truncate(a.Clicks * 1.0 / 3) == a.Clicks + 1).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/OtherTest.cs

@@ -0,0 +1,129 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class OtherTest
+    {
+
+        ISelect<TableAllType> select => g.odbc.Select<TableAllType>();
+
+        [Fact]
+        public void Div()
+        {
+            var t1 = select.Where(a => a.testFieldInt / 3 > 3).Limit(10).ToList();
+            var t2 = select.Where(a => a.testFieldLong / 3 > 3).Limit(10).ToList();
+            var t3 = select.Where(a => a.testFieldShort / 3 > 3).Limit(10).ToList();
+
+            var t4 = select.Where(a => a.testFieldInt / 3.0 > 3).Limit(10).ToList();
+            var t5 = select.Where(a => a.testFieldLong / 3.0 > 3).Limit(10).ToList();
+            var t6 = select.Where(a => a.testFieldShort / 3.0 > 3).Limit(10).ToList();
+
+            var t7 = select.Where(a => a.testFieldDouble / 3 > 3).Limit(10).ToList();
+            var t8 = select.Where(a => a.testFieldDecimal / 3 > 3).Limit(10).ToList();
+            var t9 = select.Where(a => a.testFieldFloat / 3 > 3).Limit(10).ToList();
+        }
+
+        [Fact]
+        public void Boolean()
+        {
+            var t1 = select.Where(a => a.testFieldBool == true).ToList();
+            var t2 = select.Where(a => a.testFieldBool != true).ToList();
+            var t3 = select.Where(a => a.testFieldBool == false).ToList();
+            var t4 = select.Where(a => !a.testFieldBool).ToList();
+            var t5 = select.Where(a => a.testFieldBool).ToList();
+
+            var t11 = select.Where(a => a.testFieldBoolNullable == true).ToList();
+            var t22 = select.Where(a => a.testFieldBoolNullable != true).ToList();
+            var t33 = select.Where(a => a.testFieldBoolNullable == false).ToList();
+            var t44 = select.Where(a => !a.testFieldBoolNullable.Value).ToList();
+            var t55 = select.Where(a => a.testFieldBoolNullable.Value).ToList();
+        }
+
+        [Fact]
+        public void Array()
+        {
+            IEnumerable<int> testlinqlist = new List<int>(new[] { 1, 2, 3 });
+            var testlinq = select.Where(a => testlinqlist.Contains(a.testFieldInt)).ToList();
+
+            //in not in
+            var sql111 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+            var sql112 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+            var sql113 = select.Where(a => !new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+            var inarray = new[] { 1, 2, 3 };
+            var sql1111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+            var sql1122 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+            var sql1133 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+
+            //in not in
+            var sql11111 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+            var sql11222 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+            var sql11333 = select.Where(a => !new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+            var sql11111a = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+            var sql11222b = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt) == false).ToList();
+            var sql11333c = select.Where(a => !new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+
+            var inarray2 = new List<int>() { 1, 2, 3 };
+            var sql111111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+            var sql112222 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+            var sql113333 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+        }
+
+        [Table(Name = "tb_alltype")]
+        class TableAllType
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+
+            [Column(Name = "testFieldBool1111")]
+            public bool testFieldBool { get; set; }
+            public sbyte testFieldSByte { get; set; }
+            public short testFieldShort { get; set; }
+            public int testFieldInt { get; set; }
+            public long testFieldLong { get; set; }
+            public byte testFieldByte { get; set; }
+            public ushort testFieldUShort { get; set; }
+            public uint testFieldUInt { get; set; }
+            public ulong testFieldULong { get; set; }
+            public double testFieldDouble { get; set; }
+            public float testFieldFloat { get; set; }
+            public decimal testFieldDecimal { get; set; }
+            public TimeSpan testFieldTimeSpan { get; set; }
+            public DateTime testFieldDateTime { get; set; }
+            public DateTimeOffset testFieldDateTimeOffset { get; set; }
+            public byte[] testFieldBytes { get; set; }
+            public string testFieldString { get; set; }
+            public Guid testFieldGuid { get; set; }
+
+            public bool? testFieldBoolNullable { get; set; }
+            public sbyte? testFieldSByteNullable { get; set; }
+            public short? testFieldShortNullable { get; set; }
+            public int? testFieldIntNullable { get; set; }
+            public long? testFielLongNullable { get; set; }
+            public byte? testFieldByteNullable { get; set; }
+            public ushort? testFieldUShortNullable { get; set; }
+            public uint? testFieldUIntNullable { get; set; }
+            public ulong? testFieldULongNullable { get; set; }
+            public double? testFieldDoubleNullable { get; set; }
+            public float? testFieldFloatNullable { get; set; }
+            public decimal? testFieldDecimalNullable { get; set; }
+            public TimeSpan? testFieldTimeSpanNullable { get; set; }
+            public DateTime? testFieldDateTimeNullable { get; set; }
+            public DateTimeOffset? testFieldDateTimeNullableOffset { get; set; }
+            public Guid? testFieldGuidNullable { get; set; }
+
+            public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+            public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+            public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+            public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+        }
+
+        public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+        [Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/StringTest.cs

@@ -0,0 +1,289 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class StringTest
+    {
+
+        ISelect<Topic> select => g.odbc.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            [Column(IsIdentity = true)]
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+        class TestEqualsGuid
+        {
+            public Guid id { get; set; }
+        }
+
+        [Fact]
+        public void Equals__()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.Equals("aaa")).ToList());
+            list.Add(g.odbc.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
+        }
+
+        [Fact]
+        public void Empty()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (a.Title ?? "") == string.Empty).ToSql());
+        }
+
+        [Fact]
+        public void StartsWith()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.StartsWith("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Type.Name)).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Type.Name)).ToList());
+        }
+        [Fact]
+        public void EndsWith()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.EndsWith("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Type.Name)).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Type.Name)).ToList());
+        }
+        [Fact]
+        public void Contains()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.Contains("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name)).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name)).ToList());
+        }
+        [Fact]
+        public void ToLower()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.ToLower() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void ToUpper()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.ToUpper() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void Substring()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Substring(0) == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(a.Title.Length) == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, a.Title.Length) == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, 3) == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(1, 2) == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void Length()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Length == 0).ToList());
+            data.Add(select.Where(a => a.Title.Length == 1).ToList());
+            data.Add(select.Where(a => a.Title.Length == a.Title.Length + 1).ToList());
+            data.Add(select.Where(a => a.Title.Length == a.Type.Name.Length).ToList());
+
+            data.Add(select.Where(a => (a.Title + "aaa").Length == 0).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == 1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == a.Title.Length + 1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == a.Type.Name.Length).ToList());
+        }
+        [Fact]
+        public void IndexOf()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.IndexOf("aaa") == -1).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == -1).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa") == -1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == -1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+        }
+        [Fact]
+        public void PadLeft()
+        {
+            //var data = new List<object>();
+            //data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == "aaa").ToList());
+            //data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Title).ToList());
+            //data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == (a.Title + 1)).ToList());
+            //data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Type.Name).ToList());
+
+            //data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == "aaa").ToList());
+            //data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Title).ToList());
+            //data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == (a.Title + 1)).ToList());
+            //data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void PadRight()
+        {
+            //var data = new List<object>();
+            //data.Add(select.Where(a => a.Title.PadRight(10, 'a') == "aaa").ToList());
+            //data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Title).ToList());
+            //data.Add(select.Where(a => a.Title.PadRight(10, 'a') == (a.Title + 1)).ToList());
+            //data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Type.Name).ToList());
+
+            //data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == "aaa").ToList());
+            //data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Title).ToList());
+            //data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == (a.Title + 1)).ToList());
+            //data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void Trim()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Trim() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Trim('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Trim('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Trim('a', 'b', 'c') == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.Trim() + "aaa").Trim() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a') + "aaa").Trim('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a', 'b') + "aaa").Trim('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a', 'b', 'c') + "aaa").Trim('a', 'b', 'c') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void TrimStart()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.TrimStart() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.TrimStart() + "aaa").TrimStart() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a') + "aaa").TrimStart('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a', 'b') + "aaa").TrimStart('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a', 'b', 'c') + "aaa").TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void TrimEnd()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.TrimEnd() + "aaa").TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a') + "aaa").TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b') + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b', 'c') + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void Replace()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Replace("a", "b") == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c") == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") == a.Type.Name).ToList());
+
+            data.Add(select.Where(a => (a.Title.Replace("a", "b") + "aaa").TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c") + "aaa").TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+        }
+        [Fact]
+        public void CompareTo()
+        {
+            //var data = new List<object>();
+            //data.Add(select.Where(a => a.Title.CompareTo(a.Title) == 0).ToList());
+            //data.Add(select.Where(a => a.Title.CompareTo(a.Title) > 0).ToList());
+            //data.Add(select.Where(a => a.Title.CompareTo(a.Title + 1) == 0).ToList());
+            //data.Add(select.Where(a => a.Title.CompareTo(a.Title + a.Type.Name) == 0).ToList());
+
+            //data.Add(select.Where(a => (a.Title + "aaa").CompareTo("aaa") == 0).ToList());
+            //data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title) > 0).ToList());
+            //data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title + 1) == 0).ToList());
+            //data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Type.Name) == 0).ToList());
+        }
+
+        [Fact]
+        public void string_IsNullOrEmpty()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => string.IsNullOrEmpty(a.Title)).ToList());
+            //data.Add(select.Where(a => string.IsNullOrEmpty(a.Title) == false).ToList());
+            data.Add(select.Where(a => !string.IsNullOrEmpty(a.Title)).ToList());
+        }
+
+        [Fact]
+        public void string_IsNullOrWhiteSpace()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => string.IsNullOrWhiteSpace(a.Title)).ToList());
+            data.Add(select.Where(a => string.IsNullOrWhiteSpace(a.Title) == false).ToList());
+            data.Add(select.Where(a => !string.IsNullOrWhiteSpace(a.Title)).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/TimeSpanTest.cs

@@ -0,0 +1,209 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.DefaultExpression
+{
+    public class TimeSpanTest
+    {
+
+        ISelect<Topic> select => g.odbc.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+        [Fact]
+        public void Zero()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.Zero).ToList());
+        }
+        [Fact]
+        public void MinValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.MinValue).ToList());
+        }
+        [Fact]
+        public void MaxValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay < TimeSpan.MaxValue).ToList());
+        }
+        [Fact]
+        public void Days()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Days == 0).ToList());
+        }
+        [Fact]
+        public void Hours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Hours > 0).ToSql());
+        }
+        [Fact]
+        public void Milliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Milliseconds > 0).ToList());
+        }
+        [Fact]
+        public void Minutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Minutes > 0).ToList());
+        }
+        [Fact]
+        public void Seconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Seconds > 0).ToList());
+        }
+        [Fact]
+        public void Ticks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Ticks > 0).ToList());
+        }
+        [Fact]
+        public void TotalDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalDays > 0).ToList());
+        }
+        [Fact]
+        public void TotalHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalHours > 0).ToList());
+        }
+        [Fact]
+        public void TotalMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMilliseconds > 0).ToList());
+        }
+        [Fact]
+        public void TotalMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMinutes > 0).ToSql());
+        }
+        [Fact]
+        public void TotalSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalSeconds > 0).ToList());
+        }
+        [Fact]
+        public void Add()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Add(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+        }
+        [Fact]
+        public void Subtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Subtract(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+        }
+        [Fact]
+        public void CompareTo()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.CompareTo(TimeSpan.FromDays(1)) > 0).ToList());
+        }
+        [Fact]
+        public void this_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Equals(TimeSpan.FromDays(1))).ToList());
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.ToString() == "ssss").ToList());
+        }
+
+        [Fact]
+        public void TimeSpan_Compare()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Compare(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1)) > 0).ToList());
+        }
+        [Fact]
+        public void TimeSpan_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromHours(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMilliseconds(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMinutes(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromSeconds(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_FromTicks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromTicks(1))).ToList());
+        }
+        [Fact]
+        public void TimeSpan_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Parse(a.CreateTime.TimeOfDay.ToString()) > TimeSpan.Zero).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLDeleteTest.cs

@@ -0,0 +1,97 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLDeleteTest
+    {
+
+        IDelete<Topic> delete => g.pgsql.Delete<Topic>();
+
+        [Table(Name = "tb_topic_del")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void Dywhere()
+        {
+            Assert.Null(g.pgsql.Delete<Topic>().ToSql());
+            var sql = g.pgsql.Delete<Topic>(new[] { 1, 2 }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new { id = 1 }).ToSql();
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+        }
+
+        [Fact]
+        public void Where()
+        {
+            var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (id = @id)", sql);
+
+            var item = new Topic { Id = 1, Title = "newtitle" };
+            sql = delete.Where(item).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            sql = delete.Where(items).ToSql().Replace("\r\n", "");
+            Assert.Equal("DELETE FROM \"tb_topic_del\" WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void WhereExists()
+        {
+
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+
+            var id = g.pgsql.Insert<Topic>(new Topic { Title = "xxxx" }).ExecuteIdentity();
+            Assert.Equal(1, delete.Where(a => a.Id == id).ExecuteAffrows());
+        }
+        [Fact]
+        public void ExecuteDeleted()
+        {
+
+            delete.Where(a => a.Id > 0).ExecuteDeleted();
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            Assert.Null(g.pgsql.Delete<Topic>().ToSql());
+            var sql = g.pgsql.Delete<Topic>(new[] { 1, 2 }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1 OR \"id\" = 2)", sql);
+
+            sql = g.pgsql.Delete<Topic>(new { id = 1 }).AsTable(a => "TopicAsTable").ToSql();
+            Assert.Equal("DELETE FROM \"topicastable\" WHERE (\"id\" = 1)", sql);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLInsertTest.cs

@@ -0,0 +1,141 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLInsertTest
+    {
+
+        IInsert<Topic> insert => g.pgsql.Insert<Topic>();
+
+        [Table(Name = "tb_topic_insert")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void AppendData()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            var sql = insert.AppendData(items.First()).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\", \"title\", \"createtime\") VALUES(0, 'newtitle0', '0001-01-01 00:00:00.000000')", sql);
+
+            sql = insert.AppendData(items).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\", \"title\", \"createtime\") VALUES(0, 'newtitle0', '0001-01-01 00:00:00.000000'), (100, 'newtitle1', '0001-01-01 00:00:00.000000'), (200, 'newtitle2', '0001-01-01 00:00:00.000000'), (300, 'newtitle3', '0001-01-01 00:00:00.000000'), (400, 'newtitle4', '0001-01-01 00:00:00.000000'), (500, 'newtitle5', '0001-01-01 00:00:00.000000'), (600, 'newtitle6', '0001-01-01 00:00:00.000000'), (700, 'newtitle7', '0001-01-01 00:00:00.000000'), (800, 'newtitle8', '0001-01-01 00:00:00.000000'), (900, 'newtitle9', '0001-01-01 00:00:00.000000')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"title\") VALUES('newtitle0'), ('newtitle1'), ('newtitle2'), ('newtitle3'), ('newtitle4'), ('newtitle5'), ('newtitle6'), ('newtitle7'), ('newtitle8'), ('newtitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\", \"title\") VALUES(0, 'newtitle0'), (100, 'newtitle1'), (200, 'newtitle2'), (300, 'newtitle3'), (400, 'newtitle4'), (500, 'newtitle5'), (600, 'newtitle6'), (700, 'newtitle7'), (800, 'newtitle8'), (900, 'newtitle9')", sql);
+        }
+
+        [Fact]
+        public void InsertColumns()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            var sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"title\") VALUES('newtitle0'), ('newtitle1'), ('newtitle2'), ('newtitle3'), ('newtitle4'), ('newtitle5'), ('newtitle6'), ('newtitle7'), ('newtitle8'), ('newtitle9')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\", \"title\") VALUES(0, 'newtitle0'), (100, 'newtitle1'), (200, 'newtitle2'), (300, 'newtitle3'), (400, 'newtitle4'), (500, 'newtitle5'), (600, 'newtitle6'), (700, 'newtitle7'), (800, 'newtitle8'), (900, 'newtitle9')", sql);
+        }
+        [Fact]
+        public void IgnoreColumns()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            var sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\", \"title\") VALUES(0, 'newtitle0'), (100, 'newtitle1'), (200, 'newtitle2'), (300, 'newtitle3'), (400, 'newtitle4'), (500, 'newtitle5'), (600, 'newtitle6'), (700, 'newtitle7'), (800, 'newtitle8'), (900, 'newtitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime }).ToSql();
+            Assert.Equal("INSERT INTO \"tb_topic_insert\"(\"clicks\") VALUES(0), (100), (200), (300), (400), (500), (600), (700), (800), (900)", sql);
+
+            g.pgsql.Delete<TopicIgnore>().Where("1=1").ExecuteAffrows();
+            var itemsIgnore = new List<TopicIgnore>();
+            for (var a = 0; a < 2072; a++) itemsIgnore.Add(new TopicIgnore { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+            g.pgsql.Insert<TopicIgnore>().AppendData(itemsIgnore).IgnoreColumns(a => new { a.Title }).ExecuteAffrows();
+            Assert.Equal(2072, itemsIgnore.Count);
+            Assert.Equal(2072, g.pgsql.Select<TopicIgnore>().Where(a => a.Title == null).Count());
+        }
+        [Table(Name = "tb_topicIgnoreColumns")]
+        class TopicIgnore
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            Assert.Equal(1, insert.AppendData(items.First()).ExecuteAffrows());
+            Assert.Equal(10, insert.AppendData(items).ExecuteAffrows());
+        }
+        [Fact]
+        public void ExecuteIdentity()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            Assert.NotEqual(0, insert.AppendData(items.First()).ExecuteIdentity());
+        }
+        [Fact]
+        public void ExecuteInserted()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            insert.AppendData(items.First()).ExecuteInserted();
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newTitle{a}", Clicks = a * 100 });
+
+            var sql = insert.AppendData(items.First()).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\", \"title\", \"createtime\") VALUES(0, 'newTitle0', '0001-01-01 00:00:00.000000')", sql);
+
+            sql = insert.AppendData(items).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\", \"title\", \"createtime\") VALUES(0, 'newTitle0', '0001-01-01 00:00:00.000000'), (100, 'newTitle1', '0001-01-01 00:00:00.000000'), (200, 'newTitle2', '0001-01-01 00:00:00.000000'), (300, 'newTitle3', '0001-01-01 00:00:00.000000'), (400, 'newTitle4', '0001-01-01 00:00:00.000000'), (500, 'newTitle5', '0001-01-01 00:00:00.000000'), (600, 'newTitle6', '0001-01-01 00:00:00.000000'), (700, 'newTitle7', '0001-01-01 00:00:00.000000'), (800, 'newTitle8', '0001-01-01 00:00:00.000000'), (900, 'newTitle9', '0001-01-01 00:00:00.000000')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => a.Title).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"title\") VALUES('newTitle0'), ('newTitle1'), ('newTitle2'), ('newTitle3'), ('newTitle4'), ('newTitle5'), ('newTitle6'), ('newTitle7'), ('newTitle8'), ('newTitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\", \"title\") VALUES(0, 'newTitle0'), (100, 'newTitle1'), (200, 'newTitle2'), (300, 'newTitle3'), (400, 'newTitle4'), (500, 'newTitle5'), (600, 'newTitle6'), (700, 'newTitle7'), (800, 'newTitle8'), (900, 'newTitle9')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => a.Title).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"title\") VALUES('newTitle0'), ('newTitle1'), ('newTitle2'), ('newTitle3'), ('newTitle4'), ('newTitle5'), ('newTitle6'), ('newTitle7'), ('newTitle8'), ('newTitle9')", sql);
+
+            sql = insert.AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\", \"title\") VALUES(0, 'newTitle0'), (100, 'newTitle1'), (200, 'newTitle2'), (300, 'newTitle3'), (400, 'newTitle4'), (500, 'newTitle5'), (600, 'newTitle6'), (700, 'newTitle7'), (800, 'newTitle8'), (900, 'newTitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => a.CreateTime).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\", \"title\") VALUES(0, 'newTitle0'), (100, 'newTitle1'), (200, 'newTitle2'), (300, 'newTitle3'), (400, 'newTitle4'), (500, 'newTitle5'), (600, 'newTitle6'), (700, 'newTitle7'), (800, 'newTitle8'), (900, 'newTitle9')", sql);
+
+            sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime }).AsTable(a => "Topic_InsertAsTable").ToSql();
+            Assert.Equal("INSERT INTO \"topic_insertastable\"(\"clicks\") VALUES(0), (100), (200), (300), (400), (500), (600), (700), (800), (900)", sql);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLUpdateTest.cs

@@ -0,0 +1,147 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLUpdateTest
+    {
+        IUpdate<Topic> update => g.pgsql.Update<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int? Clicks { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+
+        [Fact]
+        public void Dywhere()
+        {
+            Assert.Null(g.pgsql.Update<Topic>().ToSql());
+            Assert.Equal("UPDATE \"tb_topic\" SET title='test' \r\nWHERE (\"id\" = 1 OR \"id\" = 2)", g.pgsql.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").ToSql());
+            Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"id\" = 1)", g.pgsql.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").ToSql());
+            Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"id\" = 1 OR \"id\" = 2)", g.pgsql.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").ToSql());
+            Assert.Equal("UPDATE \"tb_topic\" SET title='test1' \r\nWHERE (\"id\" = 1)", g.pgsql.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").ToSql());
+        }
+
+        [Fact]
+        public void SetSource()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = NULL, \"title\" = 'newtitle', \"createtime\" = '0001-01-01 00:00:00.000000' WHERE (\"id\" = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+            items[0].Clicks = null;
+
+            sql = update.SetSource(items).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = CASE \"id\" WHEN 1 THEN NULL WHEN 2 THEN 100 WHEN 3 THEN 200 WHEN 4 THEN 300 WHEN 5 THEN 400 WHEN 6 THEN 500 WHEN 7 THEN 600 WHEN 8 THEN 700 WHEN 9 THEN 800 WHEN 10 THEN 900 END::int4, \"title\" = CASE \"id\" WHEN 1 THEN 'newtitle0' WHEN 2 THEN 'newtitle1' WHEN 3 THEN 'newtitle2' WHEN 4 THEN 'newtitle3' WHEN 5 THEN 'newtitle4' WHEN 6 THEN 'newtitle5' WHEN 7 THEN 'newtitle6' WHEN 8 THEN 'newtitle7' WHEN 9 THEN 'newtitle8' WHEN 10 THEN 'newtitle9' END::varchar, \"createtime\" = CASE \"id\" WHEN 1 THEN '0001-01-01 00:00:00.000000' WHEN 2 THEN '0001-01-01 00:00:00.000000' WHEN 3 THEN '0001-01-01 00:00:00.000000' WHEN 4 THEN '0001-01-01 00:00:00.000000' WHEN 5 THEN '0001-01-01 00:00:00.000000' WHEN 6 THEN '0001-01-01 00:00:00.000000' WHEN 7 THEN '0001-01-01 00:00:00.000000' WHEN 8 THEN '0001-01-01 00:00:00.000000' WHEN 9 THEN '0001-01-01 00:00:00.000000' WHEN 10 THEN '0001-01-01 00:00:00.000000' END::timestamp WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+            sql = update.SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"title\" = CASE \"id\" WHEN 1 THEN 'newtitle0' WHEN 2 THEN 'newtitle1' WHEN 3 THEN 'newtitle2' WHEN 4 THEN 'newtitle3' WHEN 5 THEN 'newtitle4' WHEN 6 THEN 'newtitle5' WHEN 7 THEN 'newtitle6' WHEN 8 THEN 'newtitle7' WHEN 9 THEN 'newtitle8' WHEN 10 THEN 'newtitle9' END::varchar WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+            sql = update.SetSource(items).Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"createtime\" = '2020-01-01 00:00:00.000000' WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void IgnoreColumns()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"title\" = 'newtitle' WHERE (\"id\" = 1)", sql);
+        }
+        [Fact]
+        public void UpdateColumns()
+        {
+            var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).UpdateColumns(a => a.Title).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"title\" = 'newtitle' WHERE (\"id\" = 1)", sql);
+        }
+        [Fact]
+        public void Set()
+        {
+            var sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"title\" = 'newtitle' WHERE (\"id\" = 1)", sql);
+
+            sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"title\" = 'newtitle', \"createtime\" = '2020-01-01 00:00:00.000000' WHERE (\"id\" = 1)", sql);
+
+            sql = update.Set(a => a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = coalesce(\"clicks\", 0) * 10 / 1 WHERE (\"id\" = 1)", sql);
+
+            sql = update.Set(a => a.Id - 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"id\" = (\"id\" - 10) WHERE (\"id\" = 1)", sql);
+
+            int incrv = 10;
+            sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = coalesce(\"clicks\", 0) * 10 / 1 WHERE (\"id\" = 1)", sql);
+
+            sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"id\" = (\"id\" - 10) WHERE (\"id\" = 1)", sql);
+
+            sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = \"clicks\" * 10 / 1 WHERE (\"id\" = 1)", sql);
+
+            sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET \"id\" = 10 WHERE (\"id\" = 1)", sql);
+        }
+        [Fact]
+        public void SetRaw()
+        {
+            var sql = update.Where(a => a.Id == 1).SetRaw("clicks = clicks + ?", new { incrClick = 1 }).ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET clicks = clicks + ? WHERE (\"id\" = 1)", sql);
+        }
+        [Fact]
+        public void Where()
+        {
+            var sql = update.Where(a => a.Id == 1).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"id\" = 1)", sql);
+
+            sql = update.Where("id = ?", new { id = 1 }).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (id = ?)", sql);
+
+            var item = new Topic { Id = 1, Title = "newtitle" };
+            sql = update.Where(item).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"id\" = 1)", sql);
+
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+            sql = update.Where(items).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+            Assert.Equal("UPDATE \"tb_topic\" SET title='newtitle' WHERE (\"id\" IN (1,2,3,4,5,6,7,8,9,10))", sql);
+        }
+        [Fact]
+        public void WhereExists()
+        {
+
+        }
+        [Fact]
+        public void ExecuteAffrows()
+        {
+            var items = new List<Topic>();
+            for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+            update.SetSource(items.First()).NoneParameter().ExecuteAffrows();
+            update.SetSource(items).NoneParameter().ExecuteAffrows();
+        }
+        [Fact]
+        public void ExecuteUpdated()
+        {
+
+        }
+
+        [Fact]
+        public void AsTable()
+        {
+            Assert.Null(g.pgsql.Update<Topic>().ToSql());
+            Assert.Equal("UPDATE \"tb_topicastable\" SET title='test' \r\nWHERE (\"id\" = 1 OR \"id\" = 2)", g.pgsql.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE \"tb_topicastable\" SET title='test1' \r\nWHERE (\"id\" = 1)", g.pgsql.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE \"tb_topicastable\" SET title='test1' \r\nWHERE (\"id\" = 1 OR \"id\" = 2)", g.pgsql.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+            Assert.Equal("UPDATE \"tb_topicastable\" SET title='test1' \r\nWHERE (\"id\" = 1)", g.pgsql.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/MapType/DateTimeOffSetTest.cs

@@ -0,0 +1,54 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLMapType
+{
+    public class DateTimeOffSetTest
+    {
+        class DateTimeOffSetTestMap
+        {
+            public Guid id { get; set; }
+
+            [Column(MapType = typeof(DateTime))]
+            public DateTimeOffset dtos_to_dt { get; set; }
+            [Column(MapType = typeof(DateTime))]
+            public DateTimeOffset? dtosnullable_to_dt { get; set; }
+        }
+        [Fact]
+        public void DateTimeToDateTimeOffSet()
+        {
+            //insert
+            var orm = g.pgsql;
+            var item = new DateTimeOffSetTestMap { dtos_to_dt = DateTimeOffset.Now, dtosnullable_to_dt = DateTimeOffset.Now };
+            Assert.Equal(1, orm.Insert<DateTimeOffSetTestMap>().AppendData(item).ExecuteAffrows());
+            var find = orm.Select<DateTimeOffSetTestMap>().Where(a => a.id == item.id).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.dtos_to_dt.ToString("g"), find.dtos_to_dt.ToString("g"));
+            Assert.Equal(item.dtosnullable_to_dt.Value.ToString("g"), find.dtosnullable_to_dt.Value.ToString("g"));
+
+            //update all
+            item.dtos_to_dt = DateTimeOffset.Now;
+            Assert.Equal(1, orm.Update<DateTimeOffSetTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<DateTimeOffSetTestMap>().Where(a => a.id == item.id).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.dtos_to_dt.ToString("g"), find.dtos_to_dt.ToString("g"));
+            Assert.Equal(item.dtosnullable_to_dt.Value.ToString("g"), find.dtosnullable_to_dt.Value.ToString("g"));
+
+            //update set
+            Assert.Equal(1, orm.Update<DateTimeOffSetTestMap>().Where(a => a.id == item.id).Set(a => a.dtos_to_dt, item.dtos_to_dt = DateTimeOffset.Now).ExecuteAffrows());
+            find = orm.Select<DateTimeOffSetTestMap>().Where(a => a.id == item.id).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.dtos_to_dt.ToString("g"), find.dtos_to_dt.ToString("g"));
+            Assert.Equal(item.dtosnullable_to_dt.Value.ToString("g"), find.dtosnullable_to_dt.Value.ToString("g"));
+
+            //delete
+            Assert.Equal(1, orm.Delete<DateTimeOffSetTestMap>().Where(a => a.id == item.id).ExecuteAffrows());
+            Assert.Null(orm.Select<DateTimeOffSetTestMap>().Where(a => a.id == item.id).First());
+        }
+        
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/MapType/EnumTest.cs

@@ -0,0 +1,261 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.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 { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+        [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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            item = new EnumTestMap { enum_to_string = ToStringMapEnum.abc };
+            Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+            //update all
+            item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            //update set
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+            //delete
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+        }
+        [Fact]
+        public void EnumNullableToString()
+        {
+            //insert
+            var orm = g.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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+            Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+            //update all
+            item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+            item.enumnullable_to_string = null;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Null(find.enumnullable_to_string);
+
+            //update set
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Null(find.enumnullable_to_string);
+
+            //delete
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+        }
+
+        [Fact]
+        public void EnumToInt()
+        {
+            //insert
+            var orm = g.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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_int, find.enum_to_int);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+            item = new EnumTestMap { enum_to_int = ToStringMapEnum.abc };
+            Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_int, find.enum_to_int);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+            //update all
+            item.enum_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_int, find.enum_to_int);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+            item.enum_to_int = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_int, find.enum_to_int);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+            //update set
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+            //delete
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+        }
+        [Fact]
+        public void EnumNullableToInt()
+        {
+            //insert
+            var orm = g.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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+            Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+            //update all
+            item.enumnullable_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+            item.enumnullable_to_int = null;
+            Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+            Assert.Null(find.enumnullable_to_int);
+
+            //update set
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_int);
+
+
+            Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, null).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First());
+            find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Null(find.enumnullable_to_int);
+
+            //delete
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).ExecuteAffrows());
+            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/MapType/ToStringTest.cs

@@ -0,0 +1,570 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.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 { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+        [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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            item = new ToStringMap { enum_to_string = ToStringMapEnum.abc };
+            Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+            //update all
+            item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enum_to_string, find.enum_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            //update set
+            Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+            Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+            //delete
+            Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+            Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+        }
+        [Fact]
+        public void EnumNullable()
+        {
+            //insert
+            var orm = g.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.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+            Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+            //update all
+            item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+            Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+            item.enumnullable_to_string = null;
+            Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+            Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+            Assert.Null(find.enumnullable_to_string);
+
+            //update set
+            Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+            Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+            Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+            find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+            Assert.NotNull(find);
+            Assert.Equal(item.id, find.id);
+            Assert.Null(find.enumnullable_to_string);
+
+            //delete
+            Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+            Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+        }
+        [Fact]
+        public void BigInteger1()
+        {
+            //insert
+            var orm = g.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/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLAdo/PostgreSQLAdoTest.cs

@@ -0,0 +1,70 @@
+using FreeSql.DataAnnotations;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLAdoTest
+    {
+        [Fact]
+        public void Pool()
+        {
+            var t1 = g.pgsql.Ado.MasterPool.StatisticsFullily;
+        }
+
+        [Fact]
+        public void SlavePools()
+        {
+            var t2 = g.pgsql.Ado.SlavePools.Count;
+        }
+
+        [Fact]
+        public void ExecuteReader()
+        {
+
+        }
+        [Fact]
+        public void ExecuteArray()
+        {
+
+        }
+        [Fact]
+        public void ExecuteNonQuery()
+        {
+
+        }
+        [Fact]
+        public void ExecuteScalar()
+        {
+
+        }
+
+        [Fact]
+        public void Query()
+        {
+
+            g.pgsql.CodeFirst.SyncStructure<xxx>();
+            var t3 = g.pgsql.Ado.Query<xxx>("select * from xxx");
+
+            var t4 = g.pgsql.Ado.Query<(int, string, string)>("select * from xxx");
+
+            var t5 = g.pgsql.Ado.Query<dynamic>("select * from xxx");
+        }
+
+        [Fact]
+        public void QueryMultipline()
+        {
+            g.pgsql.CodeFirst.SyncStructure<xxx>();
+            var t3 = g.pgsql.Ado.Query<xxx, (int, string, string), dynamic>("select * from xxx; select * from xxx; select * from xxx");
+        }
+
+        class xxx
+        {
+            public string Id { get; set; }
+            public string Path { get; set; }
+            public string Title2 { get; set; }
+
+            public string testf { get; set; }
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLAopTest.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLAopTest
+    {
+
+        class TestAuditValue
+        {
+            public Guid id { get; set; }
+            [Now]
+            public DateTime createtime { get; set; }
+        }
+        class NowAttribute: Attribute { }
+
+        [Fact]
+        public void AuditValue()
+        {
+            var date = DateTime.Now.Date;
+            var item = new TestAuditValue();
+
+            EventHandler<Aop.AuditValueEventArgs> audit = (s, e) =>
+             {
+                 if (e.Property.GetCustomAttribute<NowAttribute>(false) != null)
+                     e.Value = DateTime.Now.Date;
+             };
+            g.pgsql.Aop.AuditValue += audit;
+
+            g.pgsql.Insert(item).ExecuteAffrows();
+
+            g.pgsql.Aop.AuditValue -= audit;
+
+            Assert.Equal(item.createtime, date);
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLCodeFirstTest.cs

@@ -0,0 +1,220 @@
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.NetworkInformation;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLCodeFirstTest
+    {
+
+        [Fact]
+        public void <EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>_<EFBFBD>ֶ<EFBFBD>()
+        {
+            var sql = g.pgsql.CodeFirst.GetComparisonDDLStatements<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>();
+            g.pgsql.CodeFirst.SyncStructure<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>();
+
+            var item = new <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
+            {
+                <EFBFBD><EFBFBD><EFBFBD><EFBFBD> = "<22><><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>",
+                <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> = DateTime.Now
+            };
+            Assert.Equal(1, g.pgsql.Insert<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>().AppendData(item).ExecuteAffrows());
+            Assert.NotEqual(Guid.Empty, item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+            var item2 = g.pgsql.Select<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>().Where(a => a.<EFBFBD><EFBFBD><EFBFBD><EFBFBD> == item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+            Assert.NotNull(item2);
+            Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+            Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+        }
+        class <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
+        {
+            [Column(IsPrimary = true)]
+            public Guid <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+            public string <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+            public DateTime <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> { get; set; }
+        }
+
+        [Fact]
+        public void AddUniques()
+        {
+            var sql = g.pgsql.CodeFirst.GetComparisonDDLStatements<AddUniquesInfo>();
+            g.pgsql.CodeFirst.SyncStructure<AddUniquesInfo>();
+        }
+        [Table(Name = "AddUniquesInfo", OldName = "AddUniquesInfo2")]
+        class AddUniquesInfo
+        {
+            public Guid id { get; set; }
+            [Column(Unique = "uk_phone")]
+            public string phone { get; set; }
+
+            [Column(Unique = "uk_group_index, uk_group_index22")]
+            public string group { get; set; }
+            [Column(Unique = "uk_group_index")]
+            public int index { get; set; }
+            [Column(Unique = "uk_group_index22")]
+            public string index22 { get; set; }
+        }
+
+        [Fact]
+        public void AddField()
+        {
+            var sql = g.pgsql.CodeFirst.GetComparisonDDLStatements<TopicAddField>();
+            g.pgsql.Select<TopicAddField>();
+
+            var id = g.pgsql.Insert<TopicAddField>().AppendData(new TopicAddField { }).ExecuteIdentity();
+        }
+
+        [Table(Name = "ccc.TopicAddField", OldName = "TopicAddField")]
+        public class TopicAddField
+        {
+            [Column(IsIdentity = true)]
+            public int Id { get; set; }
+
+            public string name { get; set; } = "xxx";
+
+            public int clicks { get; set; } = 10;
+            //public int name { get; set; } = 3000;
+
+            //[Column(DbType = "varchar(200) not null", OldName = "title")]
+            //public string title222 { get; set; } = "333";
+
+            //[Column(DbType = "varchar(200) not null")]
+            //public string title222333 { get; set; } = "xxx";
+
+            //[Column(DbType = "varchar(100) not null", OldName = "title122333aaa")]
+            //public string titleaaa { get; set; } = "fsdf";
+
+
+            [Column(IsIgnore = true)]
+            public DateTime ct { get; set; } = DateTime.Now;
+        }
+
+        [Fact]
+        public void GetComparisonDDLStatements()
+        {
+
+            var sql = g.pgsql.CodeFirst.GetComparisonDDLStatements<TableAllType>();
+            g.pgsql.Select<TableAllType>();
+        }
+
+        IInsert<TableAllType> insert => g.pgsql.Insert<TableAllType>();
+        ISelect<TableAllType> select => g.pgsql.Select<TableAllType>();
+
+        [Fact]
+        public void CurdAllField()
+        {
+            var item = new TableAllType { };
+            item.Id = (int)insert.AppendData(item).ExecuteIdentity();
+
+            var newitem = select.Where(a => a.Id == item.Id).ToOne();
+
+            var item2 = new TableAllType
+            {
+                testFieldBool = true,
+                testFieldBoolNullable = true,
+                testFieldByte = byte.MaxValue,
+                testFieldByteNullable = byte.MinValue,
+                testFieldBytes = Encoding.UTF8.GetBytes("<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"),
+                testFieldDateTime = DateTime.Now,
+                testFieldDateTimeNullable = DateTime.Now.AddDays(-1),
+                testFieldDecimal = 999.99M,
+                testFieldDecimalNullable = 111.11M,
+                testFieldDouble = 888.88,
+                testFieldDoubleNullable = 222.22,
+                testFieldEnum1 = TableAllTypeEnumType1.e3,
+                testFieldEnum1Nullable = TableAllTypeEnumType1.e2,
+                testFieldEnum2 = TableAllTypeEnumType2.f2,
+                testFieldEnum2Nullable = TableAllTypeEnumType2.f3,
+                testFieldFloat = 777.77F,
+                testFieldFloatNullable = 333.33F,
+                testFieldGuid = Guid.NewGuid(),
+                testFieldGuidNullable = Guid.NewGuid(),
+                testFieldInt = int.MaxValue,
+                testFieldIntNullable = 123,
+                testFieldLong = long.MaxValue,
+                
+                testFieldSByte = sbyte.MaxValue,
+                testFieldSByteNullable = sbyte.MinValue,
+                testFieldShort = short.MaxValue,
+                testFieldShortNullable = short.MinValue,
+                testFieldString = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>String",
+                testFieldTimeSpan = TimeSpan.FromDays(1),
+                testFieldTimeSpanNullable = TimeSpan.FromSeconds(90),
+                testFieldUInt = uint.MaxValue,
+                testFieldUIntNullable = uint.MinValue,
+                testFieldULong = ulong.MaxValue,
+                testFieldULongNullable = ulong.MinValue,
+                testFieldUShort = ushort.MaxValue,
+                testFieldUShortNullable = ushort.MinValue,
+                testFielLongNullable = long.MinValue,
+            };
+
+            var sqlPar = insert.AppendData(item2).ToSql();
+            var sqlText = insert.AppendData(item2).NoneParameter().ToSql();
+            var item3NP = insert.AppendData(item2).NoneParameter().ExecuteInserted();
+
+            var item3 = insert.AppendData(item2).ExecuteInserted().First();
+            var newitem2 = select.Where(a => a.Id == item3.Id).ToOne();
+
+            var items = select.ToList();
+        }
+
+        [Table(Name = "tb_alltype")]
+        class TableAllType
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+
+            public bool testFieldBool { get; set; }
+            public sbyte testFieldSByte { get; set; }
+            public short testFieldShort { get; set; }
+            public int testFieldInt { get; set; }
+            public long testFieldLong { get; set; }
+            public byte testFieldByte { get; set; }
+            public ushort testFieldUShort { get; set; }
+            public uint testFieldUInt { get; set; }
+            public ulong testFieldULong { get; set; }
+            public double testFieldDouble { get; set; }
+            public float testFieldFloat { get; set; }
+            public decimal testFieldDecimal { get; set; }
+            public TimeSpan testFieldTimeSpan { get; set; }
+            public DateTime testFieldDateTime { get; set; }
+            public byte[] testFieldBytes { get; set; }
+            public string testFieldString { get; set; }
+            public Guid testFieldGuid { get; set; }
+
+            public bool? testFieldBoolNullable { get; set; }
+            public sbyte? testFieldSByteNullable { get; set; }
+            public short? testFieldShortNullable { get; set; }
+            public int? testFieldIntNullable { get; set; }
+            public long? testFielLongNullable { get; set; }
+            public byte? testFieldByteNullable { get; set; }
+            public ushort? testFieldUShortNullable { get; set; }
+            public uint? testFieldUIntNullable { get; set; }
+            public ulong? testFieldULongNullable { get; set; }
+            public double? testFieldDoubleNullable { get; set; }
+            public float? testFieldFloatNullable { get; set; }
+            public decimal? testFieldDecimalNullable { get; set; }
+            public TimeSpan? testFieldTimeSpanNullable { get; set; }
+            public DateTime? testFieldDateTimeNullable { get; set; }
+            public Guid? testFieldGuidNullable { get; set; }
+
+            public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+            public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+            public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+            public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+        }
+
+        public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+        [Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLDbFirstTest.cs

@@ -0,0 +1,25 @@
+using FreeSql.DataAnnotations;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQL
+{
+    public class PostgreSQLDbFirstTest
+    {
+        [Fact]
+        public void GetDatabases()
+        {
+
+            var t1 = g.pgsql.DbFirst.GetDatabases();
+
+        }
+
+        [Fact]
+        public void GetTablesByDatabase()
+        {
+
+            var t2 = g.pgsql.DbFirst.GetTablesByDatabase(g.pgsql.DbFirst.GetDatabases()[1]);
+
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/ConvertTest.cs

@@ -0,0 +1,169 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class ConvertTest
+    {
+
+        ISelect<Topic> select => g.pgsql.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+
+        [Fact]
+        public void ToBoolean()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (Convert.ToBoolean(a.Clicks) ? 1 : 0) > 0).ToList());
+            data.Add(select.Where(a => (bool.Parse(a.Clicks.ToString()) ? 1 : 0) > 0).ToList());
+        }
+        [Fact]
+        public void ToByte()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToByte(a.Clicks % 255) > 0).ToList());
+            data.Add(select.Where(a => byte.Parse((a.Clicks % 255).ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToChar()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Convert.ToChar(a.Clicks) == '1').ToList());
+            //data.Add(select.Where(a => char.Parse(a.Clicks.ToString()) == '1').ToList());
+        }
+        [Fact]
+        public void ToDateTime()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDateTime(a.CreateTime.ToString()).Year > 0).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()).Year > 0).ToList());
+        }
+        [Fact]
+        public void ToDecimal()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDecimal(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => decimal.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToDouble()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToDouble(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => double.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt16()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToInt16(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => short.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt32()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (int)a.Clicks > 0).ToList());
+            data.Add(select.Where(a => Convert.ToInt32(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => int.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToInt64()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToInt64(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => long.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToSByte()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToSByte(a.Clicks % 128) > 0).ToList());
+            data.Add(select.Where(a => sbyte.Parse((a.Clicks % 128).ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToSingle()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToSingle(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => float.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToString(a.Clicks).Equals("")).ToList());
+            data.Add(select.Where(a => a.Clicks.ToString().Equals("")).ToList());
+        }
+        [Fact]
+        public void ToUInt16()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToUInt16(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => ushort.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToUInt32()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToUInt32(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => uint.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+        [Fact]
+        public void ToUInt64()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Convert.ToUInt64(a.Clicks) > 0).ToList());
+            data.Add(select.Where(a => ulong.Parse(a.Clicks.ToString()) > 0).ToList());
+        }
+
+        [Fact]
+        public void Guid_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Guid.Parse(Guid.Empty.ToString()) == Guid.Empty).ToList());
+        }
+
+        [Fact]
+        public void Guid_NewGuid()
+        {
+            var data = new List<object>();
+            //data.Add(select.OrderBy(a => Guid.NewGuid()).Limit(10).ToList());
+        }
+
+        [Fact]
+        public void Random()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => new Random().Next() > a.Clicks).Limit(10).ToList());
+            data.Add(select.Where(a => new Random().NextDouble() > a.Clicks).Limit(10).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/DateTimeTest.cs

@@ -0,0 +1,706 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class DateTimeTest
+    {
+
+        ISelect<Topic> select => g.pgsql.Select<Topic>();
+
+        [Table(Name = "tb_topic111333")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        [Table(Name = "TestTypeInfo333")]
+        class TestTypeInfo
+        {
+            [Column(IsIdentity = true)]
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+            public DateTime Time { get; set; }
+        }
+        [Table(Name = "TestTypeParentInfo23123")]
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+            public DateTime Time2 { get; set; }
+        }
+        [Fact]
+        public void Now()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(now(), '%Y-%m-%d') as datetime))
+        }
+        [Fact]
+        public void UtcNow()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.UtcNow.Date).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(utc_timestamp(), '%Y-%m-%d') as datetime))
+        }
+        [Fact]
+        public void MinValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.MinValue.Date).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(cast('0001/1/1 0:00:00' as datetime), '%Y-%m-%d') as datetime))
+        }
+        [Fact]
+        public void MaxValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.MaxValue.Date).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(cast('9999/12/31 23:59:59' as datetime), '%Y-%m-%d') as datetime))
+        }
+        [Fact]
+        public void Date()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+            data.Add(select.Where(a => a.Type.Time.Date > DateTime.Now.Date).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Date > DateTime.Now.Date).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime) = cast(date_format(now(), '%Y-%m-%d') as datetime));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (cast(date_format(a__Type.`Time`, '%Y-%m-%d') as datetime) > cast(date_format(now(), '%Y-%m-%d') as datetime));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (cast(date_format(a__Type__Parent.`Time2`, '%Y-%m-%d') as datetime) > cast(date_format(now(), '%Y-%m-%d') as datetime));
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.CreateTime.Date).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Time.Date).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Parent.Time2.Date).TotalSeconds > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (((timestampdiff(microsecond, cast(date_format(a.`CreateTime`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (((timestampdiff(microsecond, cast(date_format(a__Type.`Time`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (((timestampdiff(microsecond, cast(date_format(a__Type__Parent.`Time2`, '%Y-%m-%d') as datetime), now())) / 1000000) > 0)
+        }
+        [Fact]
+        public void TimeOfDay()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay == DateTime.Now.TimeOfDay).ToList());
+            data.Add(select.Where(a => a.Type.Time.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((timestampdiff(microsecond, date_format(a__Type.`Time`, '1970-1-1 %H:%i:%s.%f'), a__Type.`Time`) + 62135596800000000) > (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((timestampdiff(microsecond, date_format(a__Type__Parent.`Time2`, '1970-1-1 %H:%i:%s.%f'), a__Type__Parent.`Time2`) + 62135596800000000) > (timestampdiff(microsecond, date_format(now(), '1970-1-1 %H:%i:%s.%f'), now()) + 62135596800000000))
+        }
+        [Fact]
+        public void DayOfWeek()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+            data.Add(select.Where(a => a.Type.Time.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((dayofweek(a.`CreateTime`) - 1) > (dayofweek(now()) - 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((dayofweek(a__Type.`Time`) - 1) > (dayofweek(now()) - 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((dayofweek(a__Type__Parent.`Time2`) - 1) > (dayofweek(now()) - 1))
+        }
+        [Fact]
+        public void Day()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Day > DateTime.Now.Day).ToList());
+            data.Add(select.Where(a => a.Type.Time.Day > DateTime.Now.Day).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Day > DateTime.Now.Day).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (dayofmonth(a.`CreateTime`) > dayofmonth(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (dayofmonth(a__Type.`Time`) > dayofmonth(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (dayofmonth(a__Type__Parent.`Time2`) > dayofmonth(now()))
+        }
+        [Fact]
+        public void DayOfYear()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.DayOfYear > DateTime.Now.DayOfYear).ToList());
+            data.Add(select.Where(a => a.Type.Time.DayOfYear > DateTime.Now.DayOfYear).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.DayOfYear > DateTime.Now.DayOfYear).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (dayofyear(a.`CreateTime`) > dayofyear(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (dayofyear(a__Type.`Time`) > dayofyear(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (dayofyear(a__Type__Parent.`Time2`) > dayofyear(now()))
+        }
+        [Fact]
+        public void Month()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Month > DateTime.Now.Month).ToList());
+            data.Add(select.Where(a => a.Type.Time.Month > DateTime.Now.Month).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Month > DateTime.Now.Month).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (month(a.`CreateTime`) > month(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (month(a__Type.`Time`) > month(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (month(a__Type__Parent.`Time2`) > month(now()))
+        }
+        [Fact]
+        public void Year()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Year > DateTime.Now.Year).ToList());
+            data.Add(select.Where(a => a.Type.Time.Year > DateTime.Now.Year).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Year > DateTime.Now.Year).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (year(a.`CreateTime`) > year(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (year(a__Type.`Time`) > year(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (year(a__Type__Parent.`Time2`) > year(now()))
+        }
+        [Fact]
+        public void Hour()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Hour > DateTime.Now.Hour).ToList());
+            data.Add(select.Where(a => a.Type.Time.Hour > DateTime.Now.Hour).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Hour > DateTime.Now.Hour).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (hour(a.`CreateTime`) > hour(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (hour(a__Type.`Time`) > hour(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (hour(a__Type__Parent.`Time2`) > hour(now()))
+        }
+        [Fact]
+        public void Minute()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Minute > DateTime.Now.Minute).ToList());
+            data.Add(select.Where(a => a.Type.Time.Minute > DateTime.Now.Minute).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Minute > DateTime.Now.Minute).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (minute(a.`CreateTime`) > minute(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (minute(a__Type.`Time`) > minute(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (minute(a__Type__Parent.`Time2`) > minute(now()))
+        }
+        [Fact]
+        public void Second()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Second > DateTime.Now.Second).ToList());
+            data.Add(select.Where(a => a.Type.Time.Second > DateTime.Now.Second).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Second > DateTime.Now.Second).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (second(a.`CreateTime`) > second(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (second(a__Type.`Time`) > second(now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (second(a__Type__Parent.`Time2`) > second(now()))
+        }
+        [Fact]
+        public void Millisecond()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Millisecond > DateTime.Now.Millisecond).ToList());
+            data.Add(select.Where(a => a.Type.Time.Millisecond > DateTime.Now.Millisecond).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Millisecond > DateTime.Now.Millisecond).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (floor(microsecond(a.`CreateTime`) / 1000) > floor(microsecond(now()) / 1000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (floor(microsecond(a__Type.`Time`) / 1000) > floor(microsecond(now()) / 1000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (floor(microsecond(a__Type__Parent.`Time2`) / 1000) > floor(microsecond(now()) / 1000))
+        }
+        [Fact]
+        public void Ticks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Ticks > DateTime.Now.Ticks).ToList());
+            data.Add(select.Where(a => a.Type.Time.Ticks > DateTime.Now.Ticks).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Ticks > DateTime.Now.Ticks).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((timestampdiff(microsecond, '1970-1-1', a.`CreateTime`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((timestampdiff(microsecond, '1970-1-1', a__Type.`Time`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((timestampdiff(microsecond, '1970-1-1', a__Type__Parent.`Time2`) * 10 + 621355968000000000) > (timestampdiff(microsecond, '1970-1-1', now()) * 10 + 621355968000000000))
+        }
+        [Fact]
+        public void Add()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval ((1 * 86400000000)) microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval ((1 * 86400000000)) microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval ((1 * 86400000000)) microsecond) > now())
+        }
+        [Fact]
+        public void AddDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddDays(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddDays(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddDays(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) day) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) day) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) day) > now())
+        }
+        [Fact]
+        public void AddHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddHours(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddHours(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddHours(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) hour) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) hour) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) hour) > now())
+        }
+        [Fact]
+        public void AddMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMilliseconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMilliseconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMilliseconds(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) * 1000 microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) * 1000 microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) * 1000 microsecond) > now())
+        }
+        [Fact]
+        public void AddMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMinutes(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMinutes(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMinutes(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) minute) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) minute) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) minute) > now())
+        }
+        [Fact]
+        public void AddMonths()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddMonths(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddMonths(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddMonths(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) month) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) month) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) month) > now())
+        }
+        [Fact]
+        public void AddSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddSeconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddSeconds(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddSeconds(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) second) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) second) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) second) > now())
+        }
+        [Fact]
+        public void AddTicks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddTicks(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddTicks(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddTicks(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) / 10 microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) / 10 microsecond) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) / 10 microsecond) > now())
+        }
+        [Fact]
+        public void AddYears()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddYears(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1) > DateTime.Now).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (date_add(a.`CreateTime`, interval (1) year) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (date_add(a__Type.`Time`, interval (1) year) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (date_add(a__Type__Parent.`Time2`, interval (1) year) > now())
+        }
+        [Fact]
+        public void Subtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => a.Type.Time.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+            //SELECT a."id", a."clicks", a."typeguid", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //WHERE ((((extract(epoch from (a."createtime")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //WHERE ((((extract(epoch from (a__Type."time")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //LEFT JOIN "testtypeparentinfo23123" a__Type__Parent ON a__Type__Parent."id" = a__Type."parentid" 
+            //WHERE ((((extract(epoch from (a__Type__Parent."time2")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+            data.Add(select.Where(a => a.CreateTime.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => a.Type.Time.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            //SELECT a."id", a."clicks", a."typeguid", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //WHERE (((a."createtime")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //WHERE (((a__Type."time")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //LEFT JOIN "testtypeparentinfo23123" a__Type__Parent ON a__Type__Parent."id" = a__Type."parentid" 
+            //WHERE (((a__Type__Parent."time2")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+        }
+        [Fact]
+        public void <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>_Ч<EFBFBD><EFBFBD>ͬSubtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (a.CreateTime - DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => (a.Type.Time - DateTime.Now).TotalSeconds > 0).ToList());
+            data.Add(select.Where(a => (a.Type.Parent.Time2 - DateTime.Now).TotalSeconds > 0).ToList());
+            //SELECT a."id", a."clicks", a."typeguid", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //WHERE ((((extract(epoch from (a."createtime")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //WHERE ((((extract(epoch from (a__Type."time")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //LEFT JOIN "testtypeparentinfo23123" a__Type__Parent ON a__Type__Parent."id" = a__Type."parentid" 
+            //WHERE ((((extract(epoch from (a__Type__Parent."time2")::timestamp-(current_timestamp)::timestamp)*1000000))/1000000) > 0)
+            data.Add(select.Where(a => (a.CreateTime - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => (a.Type.Time - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            data.Add(select.Where(a => (a.Type.Parent.Time2 - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+            //SELECT a."id", a."clicks", a."typeguid", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //WHERE (((a."createtime")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //WHERE (((a__Type."time")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+
+            //SELECT a."id", a."clicks", a."typeguid", a__Type."guid", a__Type."parentid", a__Type."name", a__Type."time", a."title", a."createtime" 
+            //FROM "tb_topic111333" a 
+            //LEFT JOIN "testtypeinfo333" a__Type ON a__Type."guid" = a."typeguid" 
+            //LEFT JOIN "testtypeparentinfo23123" a__Type__Parent ON a__Type__Parent."id" = a__Type."parentid" 
+            //WHERE (((a__Type__Parent."time2")::timestamp-((((1)*86400000000))||' microseconds')::interval) > a."createtime")
+        }
+        [Fact]
+        public void this_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.AddYears(1).Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).Equals(DateTime.Now)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((date_add(a.`CreateTime`, interval (1) year) = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((date_add(a__Type.`Time`, interval (1) year) = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((date_add(a__Type__Parent.`Time2`, interval (1) year) = now()))
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.ToString().Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((date_format(a.`CreateTime`, '%Y-%m-%d %H:%i:%s.%f') = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((date_format(date_add(a__Type.`Time`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((date_format(date_add(a__Type__Parent.`Time2`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') = now()))
+        }
+
+        [Fact]
+        public void DateTime_Compare()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.CompareTo(DateTime.Now) == 0).ToList());
+            data.Add(select.Where(a => a.Type.Time.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+            data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (((a.`CreateTime`) - (now())) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (((date_add(a__Type.`Time`, interval (1) year)) - (now())) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (((date_add(a__Type__Parent.`Time2`, interval (1) year)) - (now())) = 0)
+        }
+        [Fact]
+        public void DateTime_DaysInMonth()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.CreateTime.Year, a.CreateTime.Month) > 30).ToList());
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Time.Year, a.Type.Time.Month) > 30).ToList());
+            data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Parent.Time2.Year, a.Type.Parent.Time2.Month) > 30).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (dayofmonth(last_day(concat(year(a.`CreateTime`), month(a.`CreateTime`), '-01'))) > 30);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (dayofmonth(last_day(concat(year(a__Type.`Time`), month(a__Type.`Time`), '-01'))) > 30);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (dayofmonth(last_day(concat(year(a__Type__Parent.`Time2`), month(a__Type__Parent.`Time2`), '-01'))) > 30)
+        }
+        [Fact]
+        public void DateTime_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.Equals(a.CreateTime.AddYears(1), DateTime.Now)).ToList());
+            data.Add(select.Where(a => DateTime.Equals(a.Type.Time.AddYears(1), DateTime.Now)).ToList());
+            data.Add(select.Where(a => DateTime.Equals(a.Type.Parent.Time2.AddYears(1), DateTime.Now)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE ((date_add(a.`CreateTime`, interval (1) year) = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE ((date_add(a__Type.`Time`, interval (1) year) = now()));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE ((date_add(a__Type__Parent.`Time2`, interval (1) year) = now()))
+        }
+        [Fact]
+        public void DateTime_IsLeapYear()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.CreateTime.Year)).ToList());
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Time.AddYears(1).Year)).ToList());
+            data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Parent.Time2.AddYears(1).Year)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (((year(a.`CreateTime`)) % 4 = 0 AND (year(a.`CreateTime`)) % 100 <> 0 OR (year(a.`CreateTime`)) % 400 = 0));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (((year(date_add(a__Type.`Time`, interval (1) year))) % 4 = 0 AND (year(date_add(a__Type.`Time`, interval (1) year))) % 100 <> 0 OR (year(date_add(a__Type.`Time`, interval (1) year))) % 400 = 0));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (((year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 4 = 0 AND (year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 100 <> 0 OR (year(date_add(a__Type__Parent.`Time2`, interval (1) year))) % 400 = 0))
+        }
+        [Fact]
+        public void DateTime_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()) > DateTime.Now).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.Type.Time.AddYears(1).ToString()) > DateTime.Now).ToList());
+            data.Add(select.Where(a => DateTime.Parse(a.Type.Parent.Time2.AddYears(1).ToString()) > DateTime.Now).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic111333` a 
+            //WHERE (cast(date_format(a.`CreateTime`, '%Y-%m-%d %H:%i:%s.%f') as datetime) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type 
+            //WHERE (cast(date_format(date_add(a__Type.`Time`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') as datetime) > now());
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a__Type.`Time` as7, a.`Title` as8, a.`CreateTime` as9 
+            //FROM `tb_topic111333` a, `TestTypeInfo333` a__Type, `TestTypeParentInfo23123` a__Type__Parent 
+            //WHERE (cast(date_format(date_add(a__Type__Parent.`Time2`, interval (1) year), '%Y-%m-%d %H:%i:%s.%f') as datetime) > now())
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/MathTest.cs

@@ -0,0 +1,156 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class MathTest
+    {
+
+        ISelect<Topic> select => g.pgsql.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+
+        [Fact]
+        public void PI()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.PI + a.Clicks > 0).ToList());
+        }
+        [Fact]
+        public void Abs()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Abs(-a.Clicks) > 0).ToList());
+        }
+        [Fact]
+        public void Sign()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Sign(-a.Clicks) > 0).ToList());
+        }
+        [Fact]
+        public void Floor()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Floor(a.Clicks + 0.5) == a.Clicks).ToList());
+        }
+        [Fact]
+        public void Ceiling()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Ceiling(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Round()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Round(a.Clicks + 0.5) == a.Clicks).ToList());
+            data.Add(select.Where(a => Math.Round(a.Clicks + 0.5, 1) > a.Clicks).ToList());
+        }
+        [Fact]
+        public void Exp()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Exp(1) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Log()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Log(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Log10()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Log10(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Pow()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Pow(2, a.Clicks) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Sqrt()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Sqrt(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Cos()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Cos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Sin()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Sin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Tan()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Tan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Acos()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Acos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Asin()
+        {
+            var data = new List<object>();
+            //data.Add(select.Where(a => Math.Asin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Atan()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Atan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Atan2()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Atan2(2, a.Clicks) == a.Clicks + 1).ToList());
+        }
+        [Fact]
+        public void Truncate()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => Math.Truncate(a.Clicks * 1.0 / 3) == a.Clicks + 1).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/OtherTest.cs

@@ -0,0 +1,139 @@
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Net;
+using System.Net.NetworkInformation;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class OtherTest
+    {
+
+        ISelect<TableAllType> select => g.pgsql.Select<TableAllType>();
+
+        public OtherTest()
+        {
+        }
+
+        [Fact]
+        public void Div()
+        {
+            var t1 = select.Where(a => a.testFieldInt / 3 > 3).Limit(10).ToList();
+            var t2 = select.Where(a => a.testFieldLong / 3 > 3).Limit(10).ToList();
+            var t3 = select.Where(a => a.testFieldShort / 3 > 3).Limit(10).ToList();
+
+            var t4 = select.Where(a => a.testFieldInt / 3.0 > 3).Limit(10).ToList();
+            var t5 = select.Where(a => a.testFieldLong / 3.0 > 3).Limit(10).ToList();
+            var t6 = select.Where(a => a.testFieldShort / 3.0 > 3).Limit(10).ToList();
+
+            var t7 = select.Where(a => a.testFieldDouble / 3 > 3).Limit(10).ToList();
+            var t8 = select.Where(a => a.testFieldDecimal / 3 > 3).Limit(10).ToList();
+            var t9 = select.Where(a => a.testFieldFloat / 3 > 3).Limit(10).ToList();
+        }
+
+        [Fact]
+        public void Boolean()
+        {
+            var t1 = select.Where(a => a.testFieldBool == true).ToList();
+            var t2 = select.Where(a => a.testFieldBool != true).ToList();
+            var t3 = select.Where(a => a.testFieldBool == false).ToList();
+            var t4 = select.Where(a => !a.testFieldBool).ToList();
+            var t5 = select.Where(a => a.testFieldBool).ToList();
+
+            var t11 = select.Where(a => a.testFieldBoolNullable == true).ToList();
+            var t22 = select.Where(a => a.testFieldBoolNullable != true).ToList();
+            var t33 = select.Where(a => a.testFieldBoolNullable == false).ToList();
+            var t44 = select.Where(a => !a.testFieldBoolNullable.Value).ToList();
+            var t55 = select.Where(a => a.testFieldBoolNullable.Value).ToList();
+        }
+
+        [Fact]
+        public void Array()
+        {
+            //g.pgsql.Aop.CurdAfter = (s, e) => {
+            //	Trace.WriteLine(e.CurdType + ": " + e.ElapsedMilliseconds + "ms " + e.Sql.Replace("\n", ""));
+            //};
+            IEnumerable<int> testlinqlist = new List<int>(new[] { 1, 2, 3 });
+            var testlinq = select.Where(a => testlinqlist.Contains(a.testFieldInt)).ToList();
+
+            //in not in
+            var sql111 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+            var sql112 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+            var sql113 = select.Where(a => !new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+            var inarray = new[] { 1, 2, 3 };
+            var sql1111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToSql();
+            var sql1122 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToSql();
+            var sql1133 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToSql();
+
+            //in not in
+            var sql11111 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+            var sql11222 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+            var sql11333 = select.Where(a => !new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+            var sql11111a = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+            var sql11222b = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt) == false).ToList();
+            var sql11333c = select.Where(a => !new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+
+            var inarray2 = new List<int>() { 1, 2, 3 };
+            var sql111111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+            var sql112222 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+            var sql113333 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+        }
+        
+
+        [Table(Name = "tb_alltype")]
+        class TableAllType
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+
+            public bool testFieldBool { get; set; }
+            public sbyte testFieldSByte { get; set; }
+            public short testFieldShort { get; set; }
+            public int testFieldInt { get; set; }
+            public long testFieldLong { get; set; }
+            public byte testFieldByte { get; set; }
+            public ushort testFieldUShort { get; set; }
+            public uint testFieldUInt { get; set; }
+            public ulong testFieldULong { get; set; }
+            public double testFieldDouble { get; set; }
+            public float testFieldFloat { get; set; }
+            public decimal testFieldDecimal { get; set; }
+            public TimeSpan testFieldTimeSpan { get; set; }
+            public DateTime testFieldDateTime { get; set; }
+            public byte[] testFieldBytes { get; set; }
+            public string testFieldString { get; set; }
+            public Guid testFieldGuid { get; set; }
+
+            public bool? testFieldBoolNullable { get; set; }
+            public sbyte? testFieldSByteNullable { get; set; }
+            public short? testFieldShortNullable { get; set; }
+            public int? testFieldIntNullable { get; set; }
+            public long? testFielLongNullable { get; set; }
+            public byte? testFieldByteNullable { get; set; }
+            public ushort? testFieldUShortNullable { get; set; }
+            public uint? testFieldUIntNullable { get; set; }
+            public ulong? testFieldULongNullable { get; set; }
+            public double? testFieldDoubleNullable { get; set; }
+            public float? testFieldFloatNullable { get; set; }
+            public decimal? testFieldDecimalNullable { get; set; }
+            public TimeSpan? testFieldTimeSpanNullable { get; set; }
+            public DateTime? testFieldDateTimeNullable { get; set; }
+            public Guid? testFieldGuidNullable { get; set; }
+
+            public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+            public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+            public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+            public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+        }
+
+        public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+        [Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs

@@ -0,0 +1,728 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class StringTest
+    {
+
+        ISelect<Topic> select => g.pgsql.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            [Column(IsIdentity = true)]
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+        class TestEqualsGuid
+        {
+            public Guid id { get; set; }
+        }
+
+        [Fact]
+        public void Equals__()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.Equals("aaa")).ToList());
+            list.Add(g.pgsql.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
+        }
+
+
+        [Fact]
+        public void Empty()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => (a.Title ?? "") == string.Empty).ToSql());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (ifnull(a.`Title`, '') = '')
+        }
+
+        [Fact]
+        public void StartsWith()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.StartsWith("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.StartsWith(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE '%aaa')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat('%', a.`Title`))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat('%', concat(a.`Title`, 1)))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((a.`Title`) LIKE concat('%', a__Type.`Name`))
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE '%aaa')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a.`Title`))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', concat(a.`Title`, 1)))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`))
+        }
+        [Fact]
+        public void EndsWith()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.EndsWith("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.EndsWith(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE 'aaa%')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat(a.`Title`, '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat(concat(a.`Title`, 1), '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((a.`Title`) LIKE concat(a__Type.`Name`, '%'))
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE 'aaa%')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat(a.`Title`, '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat(concat(a.`Title`, 1), '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat(a__Type.`Name`, '%'))
+        }
+        [Fact]
+        public void Contains()
+        {
+            var list = new List<object>();
+            list.Add(select.Where(a => a.Title.Contains("aaa")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title)).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1)).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE '%aaa%')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat('%', a.`Title`, '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((a.`Title`) LIKE concat('%', a.`Title` +1, '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((a.`Title`) LIKE concat('%', a__Type.`Name`, '%'))
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1)).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name)).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE '%aaa%')
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a.`Title`, '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', concat(a.`Title`, 1), '%'))
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+        }
+        [Fact]
+        public void ToLower()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.ToLower() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.ToLower() == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(a.`Title`) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(a.`Title`) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(a.`Title`) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE(lower(a.`Title`) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(concat(lower(a.`Title`), 'aaa')) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(concat(lower(a.`Title`), 'aaa')) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5
+            //FROM `tb_topic` a
+            //WHERE(lower(concat(lower(a.`Title`), 'aaa')) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type
+            //WHERE(lower(concat(lower(a.`Title`), 'aaa')) = a__Type.`Name`)
+        }
+        [Fact]
+        public void ToUpper()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.ToUpper() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.ToUpper() == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(a.`Title`) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(a.`Title`) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(a.`Title`) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (upper(a.`Title`) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(concat(upper(a.`Title`), 'aaa')) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(concat(upper(a.`Title`), 'aaa')) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (upper(concat(upper(a.`Title`), 'aaa')) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (upper(concat(upper(a.`Title`), 'aaa')) = a__Type.`Name`)
+        }
+        [Fact]
+        public void Substring()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Substring(0) == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Substring(0) == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(a.`Title`, 1) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(a.`Title`, 1) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(a.`Title`, 1) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (substr(a.`Title`, 1) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(a.Title.Length) == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, a.Title.Length) == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, 3) == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(1, 2) == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), char_length(a.`Title`) + 1) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 1, char_length(a.`Title`)) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 1, 3) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (substr(concat(substr(a.`Title`, 1), 'aaa'), 2, 2) = a__Type.`Name`)
+        }
+        [Fact]
+        public void Length()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Length == 0).ToList());
+            data.Add(select.Where(a => a.Title.Length == 1).ToList());
+            data.Add(select.Where(a => a.Title.Length == a.Title.Length + 1).ToList());
+            data.Add(select.Where(a => a.Title.Length == a.Type.Name.Length).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(a.`Title`) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(a.`Title`) = 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(a.`Title`) = char_length(a.`Title`) + 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (char_length(a.`Title`) = char_length(a__Type.`Name`));
+            data.Add(select.Where(a => (a.Title + "aaa").Length == 0).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == 1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == a.Title.Length + 1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").Length == a.Type.Name.Length).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(concat(a.`Title`, 'aaa')) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(concat(a.`Title`, 'aaa')) = 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (char_length(concat(a.`Title`, 'aaa')) = char_length(a.`Title`) + 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (char_length(concat(a.`Title`, 'aaa')) = char_length(a__Type.`Name`))
+        }
+        [Fact]
+        public void IndexOf()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.IndexOf("aaa") == -1).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == -1).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+            data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(a.`Title`, 'aaa') - 1) = -1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = -1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = char_length(a.`Title`) + 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE ((locate(a.`Title`, 'aaa', 3) - 1) = char_length(a__Type.`Name`) + 1);
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa") == -1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == -1).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa') - 1) = -1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = -1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = char_length(a.`Title`) + 1);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE ((locate(concat(a.`Title`, 'aaa'), 'aaa', 3) - 1) = char_length(a__Type.`Name`) + 1)
+        }
+        [Fact]
+        public void PadLeft()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(a.`Title`, 10, 'a') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(a.`Title`, 10, 'a') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(a.`Title`, 10, 'a') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (lpad(a.`Title`, 10, 'a') = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (lpad(concat(lpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a__Type.`Name`)
+        }
+        [Fact]
+        public void PadRight()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.PadRight(10, 'a') == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.PadRight(10, 'a') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(a.`Title`, 10, 'a') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(a.`Title`, 10, 'a') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(a.`Title`, 10, 'a') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (rpad(a.`Title`, 10, 'a') = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (rpad(concat(rpad(a.`Title`, 10, 'a'), 'aaa'), 20, 'b') = a__Type.`Name`)
+        }
+        [Fact]
+        public void Trim()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Trim() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Trim('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Trim('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Trim('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(a.`Title`) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim('a' from a.`Title`) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim('b' from trim('a' from a.`Title`)) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim('c' from trim('b' from trim('a' from a.`Title`))) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.Trim() + "aaa").Trim() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a') + "aaa").Trim('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a', 'b') + "aaa").Trim('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Trim('a', 'b', 'c') + "aaa").Trim('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(concat(trim(a.`Title`), 'aaa')) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim('a' from concat(trim('a' from a.`Title`), 'aaa')) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim('b' from trim('a' from concat(trim('b' from trim('a' from a.`Title`)), 'aaa'))) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim('c' from trim('b' from trim('a' from concat(trim('c' from trim('b' from trim('a' from a.`Title`))), 'aaa')))) = a__Type.`Name`)
+        }
+        [Fact]
+        public void TrimStart()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.TrimStart() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (ltrim(a.`Title`) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'a' from trim(leading 'a' from a.`Title`)) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))))) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.TrimStart() + "aaa").TrimStart() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a') + "aaa").TrimStart('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a', 'b') + "aaa").TrimStart('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.TrimStart('a', 'b', 'c') + "aaa").TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (ltrim(concat(ltrim(a.`Title`), 'aaa')) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'a' from trim(leading 'a' from a.`Title`)), 'aaa'))) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))), 'aaa'))))) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from concat(trim(trailing 'c' from trim(leading 'c' from trim(trailing 'b' from trim(leading 'b' from trim(trailing 'a' from trim(leading 'a' from a.`Title`)))))), 'aaa'))))))) = a__Type.`Name`)
+        }
+        [Fact]
+        public void TrimEnd()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rtrim(a.`Title`) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'a' from a.`Title`) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'b' from trim(trailing 'a' from a.`Title`)) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from a.`Title`))) = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.TrimEnd() + "aaa").TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a') + "aaa").TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b') + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b', 'c') + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (rtrim(concat(rtrim(a.`Title`), 'aaa')) = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'a' from concat(trim(trailing 'a' from a.`Title`), 'aaa')) = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (trim(trailing 'b' from trim(trailing 'a' from concat(trim(trailing 'b' from trim(trailing 'a' from a.`Title`)), 'aaa'))) = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from concat(trim(trailing 'c' from trim(trailing 'b' from trim(trailing 'a' from a.`Title`))), 'aaa')))) = a__Type.`Name`)
+        }
+        [Fact]
+        public void Replace()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.Replace("a", "b") == "aaa").ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c") == a.Title).ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (replace(a.`Title`, 'a', 'b') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (replace(replace(a.`Title`, 'a', 'b'), 'b', 'c') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'c', 'a') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), a__Type.`Name`, 'a') = a__Type.`Name`);
+            data.Add(select.Where(a => (a.Title.Replace("a", "b") + "aaa").TrimEnd() == "aaa").ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c") + "aaa").TrimEnd('a') == a.Title).ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+            data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (concat(replace(a.`Title`, 'a', 'b'), 'aaa') = 'aaa');
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (concat(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'aaa') = a.`Title`);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (concat(replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), 'c', 'a'), 'aaa') = concat(a.`Title`, 1));
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (concat(replace(replace(replace(a.`Title`, 'a', 'b'), 'b', 'c'), a__Type.`Name`, 'a'), 'aaa') = a__Type.`Name`)
+        }
+        [Fact]
+        public void CompareTo()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.Title.CompareTo(a.Title) == 0).ToList());
+            data.Add(select.Where(a => a.Title.CompareTo(a.Title) > 0).ToList());
+            data.Add(select.Where(a => a.Title.CompareTo(a.Title + 1) == 0).ToList());
+            data.Add(select.Where(a => a.Title.CompareTo(a.Title + a.Type.Name) == 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(a.`Title`, a.`Title`) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(a.`Title`, a.`Title`) > 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(a.`Title`, concat(a.`Title`, 1)) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (strcmp(a.`Title`, concat(a.`Title`, a__Type.`Name`)) = 0);
+            data.Add(select.Where(a => (a.Title + "aaa").CompareTo("aaa") == 0).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title) > 0).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title + 1) == 0).ToList());
+            data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Type.Name) == 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(concat(a.`Title`, 'aaa'), 'aaa') = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(concat(a.`Title`, 'aaa'), a.`Title`) > 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (strcmp(concat(a.`Title`, 'aaa'), concat(a.`Title`, 1)) = 0);
+
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8 
+            //FROM `tb_topic` a, `TestTypeInfo` a__Type 
+            //WHERE (strcmp(concat(a.`Title`, 'aaa'), a__Type.`Name`) = 0)
+        }
+
+        [Fact]
+        public void string_IsNullOrEmpty()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => string.IsNullOrEmpty(a.Title)).ToList());
+            data.Add(select.Where(a => string.IsNullOrEmpty(a.Title) == false).ToList());
+            data.Add(select.Where(a => !string.IsNullOrEmpty(a.Title)).ToList());
+        }
+
+        [Fact]
+        public void string_IsNullOrWhiteSpace()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => string.IsNullOrWhiteSpace(a.Title)).ToList());
+            data.Add(select.Where(a => string.IsNullOrWhiteSpace(a.Title) == false).ToList());
+            data.Add(select.Where(a => !string.IsNullOrWhiteSpace(a.Title)).ToList());
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/TimeSpanTest.cs

@@ -0,0 +1,293 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.Odbc.PostgreSQLExpression
+{
+    public class TimeSpanTest
+    {
+
+        ISelect<Topic> select => g.pgsql.Select<Topic>();
+
+        [Table(Name = "tb_topic")]
+        class Topic
+        {
+            [Column(IsIdentity = true, IsPrimary = true)]
+            public int Id { get; set; }
+            public int Clicks { get; set; }
+            public int TypeGuid { get; set; }
+            public TestTypeInfo Type { get; set; }
+            public string Title { get; set; }
+            public DateTime CreateTime { get; set; }
+        }
+        class TestTypeInfo
+        {
+            public int Guid { get; set; }
+            public int ParentId { get; set; }
+            public TestTypeParentInfo Parent { get; set; }
+            public string Name { get; set; }
+        }
+        class TestTypeParentInfo
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            public List<TestTypeInfo> Types { get; set; }
+        }
+        [Fact]
+        public void Zero()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.Zero).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) > 0)
+        }
+        [Fact]
+        public void MinValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.MinValue).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) > -922337203685477580)
+        }
+        [Fact]
+        public void MaxValue()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay < TimeSpan.MaxValue).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) < 922337203685477580)
+        }
+        [Fact]
+        public void Days()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Days == 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 86400000000) = 0)
+        }
+        [Fact]
+        public void Hours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Hours > 0).ToSql());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 3600000000) mod 24 > 0)
+        }
+        [Fact]
+        public void Milliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Milliseconds > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 1000 mod 1000) > 0)
+        }
+        [Fact]
+        public void Minutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Minutes > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 60000000 mod 60) > 0)
+        }
+        [Fact]
+        public void Seconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Seconds > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) div 1000000 mod 60) > 0)
+        }
+        [Fact]
+        public void Ticks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Ticks > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) * 10) > 0)
+        }
+        [Fact]
+        public void TotalDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalDays > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 86400000000) > 0)
+        }
+        [Fact]
+        public void TotalHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalHours > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 3600000000) > 0)
+        }
+        [Fact]
+        public void TotalMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMilliseconds > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 1000) > 0)
+        }
+        [Fact]
+        public void TotalMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMinutes > 0).ToSql());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 60000000) > 0)
+        }
+        [Fact]
+        public void TotalSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalSeconds > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) / 1000000) > 0)
+        }
+        [Fact]
+        public void Add()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Add(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) + (1 * 86400000000)) > 0)
+        }
+        [Fact]
+        public void Subtract()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Subtract(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) - (1 * 86400000000)) > 0)
+        }
+        [Fact]
+        public void CompareTo()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.CompareTo(TimeSpan.FromDays(1)) > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) - ((1 * 86400000000))) > 0)
+        }
+        [Fact]
+        public void this_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.Equals(TimeSpan.FromDays(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+        }
+        [Fact]
+        public void this_ToString()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => a.CreateTime.TimeOfDay.ToString() == "ssss").ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (date_format(date_add(cast('0001/1/1 0:00:00' as datetime), interval (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) microsecond), '%Y-%m-%d %H:%i:%s.%f') = 'ssss')
+        }
+
+        [Fact]
+        public void TimeSpan_Compare()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Compare(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1)) > 0).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) - ((1 * 86400000000))) > 0)
+        }
+        [Fact]
+        public void TimeSpan_Equals()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+        }
+        [Fact]
+        public void TimeSpan_FromDays()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 86400000000)))
+        }
+        [Fact]
+        public void TimeSpan_FromHours()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromHours(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 3600000000)))
+        }
+        [Fact]
+        public void TimeSpan_FromMilliseconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMilliseconds(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 1000)))
+        }
+        [Fact]
+        public void TimeSpan_FromMinutes()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMinutes(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 60000000)))
+        }
+        [Fact]
+        public void TimeSpan_FromSeconds()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromSeconds(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 * 1000000)))
+        }
+        [Fact]
+        public void TimeSpan_FromTicks()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromTicks(1))).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE ((timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000) = (1 / 10)))
+        }
+        [Fact]
+        public void TimeSpan_Parse()
+        {
+            var data = new List<object>();
+            data.Add(select.Where(a => TimeSpan.Parse(a.CreateTime.TimeOfDay.ToString()) > TimeSpan.Zero).ToList());
+            //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a.`Title` as4, a.`CreateTime` as5 
+            //FROM `tb_topic` a 
+            //WHERE (cast(date_format(date_add(cast('0001/1/1 0:00:00' as datetime), interval (timestampdiff(microsecond, date_format(a.`CreateTime`, '1970-1-1 %H:%i:%s.%f'), a.`CreateTime`) + 62135596800000000)) microsecond), '%Y-%m-%d %H:%i:%s.%f') as signed) > 0)
+        }
+    }
+}

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/UnitTest1.cs

@@ -349,7 +349,6 @@ WHERE ROWNUM < 11";
             var testrunsql3 = g.sqlserver.Select<TaskBuild>().Where(a => a.OptionsEntity04 > DateTime.Now.AddDays(0).ToString("yyyyMMdd").TryTo<int>()).ToSql();
             var testrunsql4 = g.oracle.Select<TaskBuild>().Where(a => a.OptionsEntity04 > DateTime.Now.AddDays(0).ToString("yyyyMMdd").TryTo<int>()).ToSql();
 
-            var testssargs1 = "10100";
             var testformatsql1 = g.mysql.Select<TaskBuild>().Where(a => a.NamespaceName == $"1_{10100}").ToSql();
             var testorderbysql = g.mysql.Select<TaskBuild>().OrderByDescending(a => a.OptionsEntity04 + (a.score ?? 0)).ToSql();
 

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/g.cs

@@ -38,4 +38,27 @@ public class g
             (cmd, traceLog) => Console.WriteLine(traceLog))
         .Build());
     public static IFreeSql oracle => oracleLazy.Value;
+
+    static Lazy<IFreeSql> pgsqlLazy = new Lazy<IFreeSql>(() =>
+    {
+        return new FreeSql.FreeSqlBuilder()
+        .UseConnectionString(FreeSql.DataType.OdbcPostgreSQL, "Driver={PostgreSQL Unicode(x64)};Server=192.168.164.10;Port=5432;UID=postgres;PWD=123456;Database=tedb_odbc;Pooling=true;Maximum Pool Size=2")
+        .UseAutoSyncStructure(true)
+        .UseSyncStructureToLower(true)
+        .UseLazyLoading(true)
+        .UseMonitorCommand(
+            cmd => Trace.WriteLine(cmd.CommandText), //监听SQL命令对象，在执行前
+            (cmd, traceLog) => Console.WriteLine(traceLog))
+        .Build();
+    });
+    public static IFreeSql pgsql => pgsqlLazy.Value;
+
+    static Lazy<IFreeSql> odbcLazy = new Lazy<IFreeSql>(() => new FreeSql.FreeSqlBuilder()
+        .UseConnectionString(FreeSql.DataType.Odbc, "Driver={SQL Server};Server=.;Persist Security Info=False;Trusted_Connection=Yes;Integrated Security=True;DATABASE=freesqlTest_odbc;Pooling=true;Max pool size=5")
+        .UseMonitorCommand(
+            cmd => Trace.WriteLine(cmd.CommandText), //监听SQL命令对象，在执行前
+            (cmd, traceLog) => Console.WriteLine(traceLog))
+        .UseLazyLoading(true)
+        .Build());
+    public static IFreeSql odbc => odbcLazy.Value;
 }