- 优化 MySql StringLength/MaxLength -2 产生 LongText 映射；

FreeSql.DbContext/FreeSql.DbContext.xml

@@ -125,6 +125,13 @@
             清空状态数据
             </summary>
         </member>
+        <member name="M:FreeSql.DbSet`1.RemoveAsync(System.Linq.Expressions.Expression{System.Func{`0,System.Boolean}})">
+            <summary>
+            根据 lambda 条件删除数据
+            </summary>
+            <param name="predicate"></param>
+            <returns></returns>
+        </member>
         <member name="M:FreeSql.DbSet`1.Add(`0)">
             <summary>
             添加
@@ -479,5 +486,14 @@
             <param name="that"></param>
             <returns></returns>
         </member>
+        <member name="M:Microsoft.Extensions.DependencyInjection.FreeSqlRepositoryDependencyInjection.AddFreeRepository(Microsoft.Extensions.DependencyInjection.IServiceCollection,System.Action{FreeSql.FluentDataFilter},System.Reflection.Assembly[])">
+            <summary>
+            批量注入 Repository，可以参考代码自行调整
+            </summary>
+            <param name="services"></param>
+            <param name="globalDataFilter"></param>
+            <param name="assemblies"></param>
+            <returns></returns>
+        </member>
     </members>
 </doc>

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

@@ -10,6 +10,94 @@ namespace FreeSql.Tests.MySqlConnector
 {
     public class MySqlCodeFirstTest
     {
+        [Fact]
+        public void Text_StringLength_1()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 1000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT02>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT02
+        {
+            public Guid Id { get; set; }
+            [Column(StringLength = -1)]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void Text()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 1000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT01>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT01
+        {
+            public Guid Id { get; set; }
+            [Column(DbType = "text")]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void Text_StringLength_2()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT04 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT04>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT04 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT04
+        {
+            public Guid Id { get; set; }
+            [Column(StringLength = -2)]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void LongText()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT03 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT03>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT03 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT03
+        {
+            public Guid Id { get; set; }
+            [Column(DbType = "longtext")]
+            public string Data { get; set; }
+        }
+
         [Fact]
         public void StringLength()
         {

FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengInsertTest.cs

@@ -9,7 +9,7 @@ namespace FreeSql.Tests.Dameng
     public class DamengInsertTest
     {
 
-        IInsert<Topic> insert => g.dameng.Insert<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        IInsert<Topic> insert => g.dameng.Insert<Topic>().NoneParameter();
 
         [Table(Name = "tb_topic_insert")]
         class Topic

FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengUpdateTest.cs

@@ -7,7 +7,7 @@ namespace FreeSql.Tests.Dameng
 {
     public class DamengUpdateTest
     {
-        IUpdate<Topic> update => g.dameng.Update<Topic>();
+        IUpdate<Topic> update => g.dameng.Update<Topic>().NoneParameter();
 
         [Table(Name = "tb_topic")]
         class Topic

FreeSql.Tests/FreeSql.Tests/Dameng/DamengCodeFirstTest.cs

@@ -10,6 +10,74 @@ namespace FreeSql.Tests.Dameng
 {
     public class DamengCodeFirstTest
     {
+        [Fact]
+        public void Text_StringLength_1()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.dameng.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.dameng.Select<TS_TEXT02>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.dameng.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT02
+        {
+            public Guid Id { get; set; }
+            [Column(StringLength = -1)]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void Text()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.dameng.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.dameng.Select<TS_TEXT01>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.dameng.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT01
+        {
+            public Guid Id { get; set; }
+            [Column(DbType = "text")]
+            public string Data { get; set; }
+        }
+        [Fact]
+        public void Blob()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+            var data1 = Encoding.UTF8.GetBytes(str1);
+
+            var item1 = new TS_BLB01 { Data = data1 };
+            Assert.Equal(1, g.dameng.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.dameng.Select<TS_BLB01>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(item1.Data.Length, item2.Data.Length);
+
+            var str2 = Encoding.UTF8.GetString(item2.Data);
+            Assert.Equal(str1, str2);
+
+            //NoneParameter
+            item1 = new TS_BLB01 { Data = data1 };
+            Assert.Throws<Exception>(() => g.dameng.Insert(item1).NoneParameter().ExecuteAffrows());
+            //DmException: <20>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ض<EFBFBD>
+        }
+        class TS_BLB01
+        {
+            public Guid Id { get; set; }
+            public byte[] Data { get; set; }
+        }
         [Fact]
         public void StringLength()
         {
@@ -238,11 +306,6 @@ namespace FreeSql.Tests.Dameng
         [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
             {
                 Bool = true,

FreeSql.Tests/FreeSql.Tests/Dameng/MapType/BoolNullableTest.cs

@@ -1497,15 +1497,6 @@ namespace FreeSql.Tests.DamengMapType
             Assert.Equal(item.tostring, find.tostring);
             Assert.Equal(false, find.tostring);
 
-            item = new BoolNullableMap { tostring = null };
-            Assert.Equal(1, orm.Insert<BoolNullableMap>().AppendData(item).ExecuteAffrows());
-            Assert.Null(orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == false).First());
-            find = orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == null).First();
-            Assert.NotNull(find);
-            Assert.Equal(item.id, find.id);
-            Assert.Equal(item.tostring, find.tostring);
-            Assert.Null(find.tostring);
-
             //update all
             item.tostring = true;
             Assert.Equal(1, orm.Update<BoolNullableMap>().SetSource(item).ExecuteAffrows());
@@ -1523,15 +1514,6 @@ namespace FreeSql.Tests.DamengMapType
             Assert.Equal(item.tostring, find.tostring);
             Assert.Equal(false, find.tostring);
 
-            item.tostring = null;
-            Assert.Equal(1, orm.Update<BoolNullableMap>().SetSource(item).ExecuteAffrows());
-            Assert.Null(orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == false).First());
-            find = orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == null).First();
-            Assert.NotNull(find);
-            Assert.Equal(item.id, find.id);
-            Assert.Equal(item.tostring, find.tostring);
-            Assert.Null(find.tostring);
-
             //update set
             Assert.Equal(1, orm.Update<BoolNullableMap>().Where(a => a.id == item.id).Set(a => a.tostring, true).ExecuteAffrows());
             find = orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == true).First();
@@ -1545,17 +1527,9 @@ namespace FreeSql.Tests.DamengMapType
             Assert.Equal(item.id, find.id);
             Assert.Equal(false, find.tostring);
 
-            Assert.Equal(1, orm.Update<BoolNullableMap>().Where(a => a.id == item.id).Set(a => a.tostring, null).ExecuteAffrows());
-            Assert.Null(orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == false).First());
-            find = orm.Select<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == null).First();
-            Assert.NotNull(find);
-            Assert.Equal(item.id, find.id);
-            Assert.Null(find.tostring);
-
             //delete
             Assert.Equal(0, orm.Delete<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == true).ExecuteAffrows());
-            Assert.Equal(0, orm.Delete<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == false).ExecuteAffrows());
+            Assert.Equal(1, orm.Delete<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == false).ExecuteAffrows());
-            Assert.Equal(1, orm.Delete<BoolNullableMap>().Where(a => a.id == item.id && a.tostring == null).ExecuteAffrows());
             Assert.Null(orm.Select<BoolNullableMap>().Where(a => a.id == item.id).First());
         }
 

FreeSql.Tests/FreeSql.Tests/Dameng/MapType/EnumTest.cs

@@ -84,17 +84,9 @@ namespace FreeSql.Tests.DamengMapType
         {
             //insert
             var orm = g.dameng;
-            var item = new EnumTestMap { };
+            var item = new EnumTestMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
             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();
+            var 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.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);
@@ -109,15 +101,6 @@ namespace FreeSql.Tests.DamengMapType
             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();
@@ -125,19 +108,10 @@ namespace FreeSql.Tests.DamengMapType
             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.NotNull(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
-            Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
         }
 
         [Fact]

FreeSql.Tests/FreeSql.Tests/Dameng/MapType/ToStringTest.cs

@@ -99,17 +99,9 @@ namespace FreeSql.Tests.DamengMapType
         {
             //insert
             var orm = g.dameng;
-            var item = new ToStringMap { };
+            var item = new ToStringMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
             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();
+            var 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.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);
@@ -124,15 +116,6 @@ namespace FreeSql.Tests.DamengMapType
             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();
@@ -140,19 +123,10 @@ namespace FreeSql.Tests.DamengMapType
             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.NotNull(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
-            Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
         }
         [Fact]
         public void BigInteger1()
@@ -216,17 +190,9 @@ namespace FreeSql.Tests.DamengMapType
         {
             //insert
             var orm = g.dameng;
-            var item = new ToStringMap { };
+            var item = new ToStringMap { bigintegernullable_to_string = 101 };
             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();
+            var 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.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);
@@ -241,15 +207,6 @@ namespace FreeSql.Tests.DamengMapType
             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();
@@ -257,18 +214,9 @@ namespace FreeSql.Tests.DamengMapType
             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(1, 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]
@@ -513,18 +461,10 @@ namespace FreeSql.Tests.DamengMapType
         {
             //insert
             var orm = g.dameng;
-            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 };
+            var 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();
+            var 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);
@@ -540,14 +480,6 @@ namespace FreeSql.Tests.DamengMapType
             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());
@@ -556,14 +488,8 @@ namespace FreeSql.Tests.DamengMapType
             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.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
             Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
         }
     }

FreeSql.Tests/FreeSql.Tests/MySql/MySqlCodeFirstTest.cs

@@ -10,6 +10,94 @@ namespace FreeSql.Tests.MySql
 {
     public class MySqlCodeFirstTest
     {
+        [Fact]
+        public void Text_StringLength_1()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 1000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT02>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT02 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT02
+        {
+            public Guid Id { get; set; }
+            [Column(StringLength = -1)]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void Text()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 1000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT01>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT01 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT01
+        {
+            public Guid Id { get; set; }
+            [Column(DbType = "text")]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void Text_StringLength_2()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT04 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT04>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT04 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT04
+        {
+            public Guid Id { get; set; }
+            [Column(StringLength = -2)]
+            public string Data { get; set; }
+        }
+
+        [Fact]
+        public void LongText()
+        {
+            var str1 = string.Join(",", Enumerable.Range(0, 10000).Select(a => "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"));
+
+            var item1 = new TS_TEXT03 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).ExecuteAffrows());
+
+            var item2 = g.mysql.Select<TS_TEXT03>().Where(a => a.Id == item1.Id).First();
+            Assert.Equal(str1, item2.Data);
+
+            //NoneParameter
+            item1 = new TS_TEXT03 { Data = str1 };
+            Assert.Equal(1, g.mysql.Insert(item1).NoneParameter().ExecuteAffrows());
+        }
+        class TS_TEXT03
+        {
+            public Guid Id { get; set; }
+            [Column(DbType = "longtext")]
+            public string Data { get; set; }
+        }
+
         [Fact]
         public void StringLength()
         {

FreeSql/DataAnnotations/ColumnAttribute.cs

@@ -89,11 +89,11 @@ namespace FreeSql.DataAnnotations
         /// Oracle -> nvarchar2(100)<para></para>
         /// Sqlite -> nvarchar(100)<para></para>
         /// ---<para></para>
-        /// StringLength = -1 时，对应 DbType：<para></para>
+        /// StringLength &lt; 0 时，对应 DbType：<para></para>
-        /// MySql -> text<para></para>
+        /// MySql -> text (StringLength = -2 时，对应 DbType longtext)<para></para>
         /// SqlServer -> nvarchar(max)<para></para>
         /// PostgreSQL -> text<para></para>
-        /// Oracle -> nvarchar2(4000)<para></para>
+        /// Oracle -> nclob<para></para>
         /// Sqlite -> text<para></para>
         /// </summary>
         public int StringLength { get => _StringLength ?? 0; set => _StringLength = value; }

FreeSql/FreeSql.xml

@@ -90,11 +90,11 @@
             Oracle -> nvarchar2(100)<para></para>
             Sqlite -> nvarchar(100)<para></para>
             ---<para></para>
-            StringLength = -1 时，对应 DbType：<para></para>
+            StringLength &lt; 0 时，对应 DbType：<para></para>
-            MySql -> text<para></para>
+            MySql -> text (StringLength = -2 时，对应 DbType longtext)<para></para>
             SqlServer -> nvarchar(max)<para></para>
             PostgreSQL -> text<para></para>
-            Oracle -> nvarchar2(4000)<para></para>
+            Oracle -> nclob<para></para>
             Sqlite -> text<para></para>
             </summary>
         </member>

FreeSql/Internal/CommonProvider/SelectProvider/Select0Provider.cs

@@ -1218,12 +1218,12 @@ namespace FreeSql.Internal.CommonProvider
                     break;
                 case DataType.Oracle:
                 case DataType.OdbcOracle:
+                case DataType.Dameng:
+                case DataType.OdbcDameng:
                     _tosqlAppendContent = $" for update{(noawait ? " nowait" : "")}";
                     break;
                 case DataType.Sqlite:
                     break;
-                case DataType.OdbcDameng:
-                case DataType.Dameng:
                 case DataType.OdbcKingbaseES:
                     _tosqlAppendContent = $" for update{(noawait ? " nowait" : "")}";
                     break;

FreeSql/Internal/UtilsExpressionTree.cs

@@ -232,7 +232,8 @@ namespace FreeSql.Internal
                     {
                         case DataType.MySql:
                         case DataType.OdbcMySql:
-                            if (strlen < 0) colattr.DbType = "TEXT";
+                            if (strlen == -2) colattr.DbType = "LONGTEXT";
+                            else if (strlen < 0) colattr.DbType = "TEXT";
                             else colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1({strlen})");
                             break;
                         case DataType.SqlServer:
@@ -250,9 +251,13 @@ namespace FreeSql.Internal
                             if (strlen < 0) colattr.DbType = "NCLOB"; //v1.3.2+ https://github.com/dotnetcore/FreeSql/issues/259
                             else colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1({strlen})");
                             break;
+                        case DataType.Dameng:
+                            if (strlen < 0) colattr.DbType = "TEXT";
+                            else colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1({strlen})");
+                            break;
                         case DataType.OdbcOracle:
                         case DataType.OdbcDameng:
-                            if (strlen < 0) colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1(4000)");
+                            if (strlen < 0) colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1(4000)"); //ODBC 不支持 NCLOB
                             else colattr.DbType = Regex.Replace(colattr.DbType, charPatten, $"$1({strlen})");
                             break;
                         case DataType.Sqlite:

Providers/FreeSql.Provider.Dameng/DamengCodeFirst.cs

@@ -15,7 +15,6 @@ namespace FreeSql.Dameng
 
     class DamengCodeFirst : Internal.CommonProvider.CodeFirstProvider
     {
-        public override bool IsNoneCommandParameter { get => true; set => base.IsNoneCommandParameter = true; }
         public DamengCodeFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression) : base(orm, commonUtils, commonExpression) { }
 
         static object _dicCsToDbLock = new object();
@@ -310,8 +309,9 @@ and not exists(select 1 from all_constraints where index_name = a.index_name and
                     continue;
                 }
                 var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
-                if (string.IsNullOrEmpty(oldpk) == false)
+                //if (string.IsNullOrEmpty(oldpk) == false)
-                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
+                //    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(_commonUtils.QuoteSqlName(oldpk)).Append("';\r\n");
+                //执行失败(语句1) 试图删除聚集主键
 
                 //创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
                 var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");
@@ -325,7 +325,8 @@ and not exists(select 1 from all_constraints where index_name = a.index_name and
                 }
                 if (tb.Primarys.Any())
                 {
-                    var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk2";
+                    var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk1";
+                    if (string.IsNullOrEmpty(oldpk) == false && oldpk == pkname) pkname = $"{pkname}1";
                     sb.Append(" \r\n  CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
                     foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
                     sb.Remove(sb.Length - 2, 2).Append("),");
@@ -457,6 +458,15 @@ and not exists(select 1 from all_constraints where index_name = a.index_name and
             else if (sqlType.StartsWith("BLOB"))
             {
             }
+            else if (sqlType.StartsWith("CLOB"))
+            {
+            }
+            else if (sqlType.StartsWith("NCLOB"))
+            {
+            }
+            else if (sqlType.StartsWith("TEXT"))
+            {
+            }
             else if (sqlType == "REAL" || sqlType == "DOUBLE" || sqlType == "FLOAT")
             { 
             }

Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengCodeFirst.cs

@@ -310,8 +310,9 @@ and not exists(select 1 from all_constraints where index_name = a.index_name and
                     continue;
                 }
                 var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
-                if (string.IsNullOrEmpty(oldpk) == false)
+                //if (string.IsNullOrEmpty(oldpk) == false)
-                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
+                //    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(_commonUtils.QuoteSqlName(oldpk)).Append("';\r\n");
+                //执行失败(语句1) 试图删除聚集主键
 
                 //创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
                 var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");
@@ -325,7 +326,8 @@ and not exists(select 1 from all_constraints where index_name = a.index_name and
                 }
                 if (tb.Primarys.Any())
                 {
-                    var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk2";
+                    var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk1";
+                    if (string.IsNullOrEmpty(oldpk) == false && oldpk == pkname) pkname = $"{pkname}1";
                     sb.Append(" \r\n  CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
                     foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
                     sb.Remove(sb.Length - 2, 2).Append("),");

Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleCodeFirst.cs

@@ -309,7 +309,7 @@ and not exists(select 1 from all_constraints where constraint_name = a.index_nam
                 }
                 var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
                 if (string.IsNullOrEmpty(oldpk) == false)
-                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
+                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(_commonUtils.QuoteSqlName(oldpk)).Append("';\r\n");
 
                 //创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
                 var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");

Providers/FreeSql.Provider.Oracle/OracleCodeFirst.cs

@@ -310,7 +310,7 @@ and not exists(select 1 from all_constraints where constraint_name = a.index_nam
                 }
                 var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
                 if (string.IsNullOrEmpty(oldpk) == false)
-                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
+                    sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(_commonUtils.QuoteSqlName(oldpk)).Append("';\r\n");
 
                 //创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
                 var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");