diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index b54d4d0e..2d6d3409 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -509,5 +509,14 @@
             <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>
diff --git a/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
index 86e4eadb..cf174b9f 100644
--- a/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
@@ -336,6 +336,7 @@ namespace FreeSql.Tests.Dameng
             var sql = query.ToSql().Replace("\r\n", "");
             Assert.Equal("SELECT a.\"ID\", a.\"CLICKS\", a.\"TYPEGUID\", a__Type.\"GUID\", a__Type.\"PARENTID\", a__Type.\"NAME\", a.\"TITLE\", a.\"CREATETIME\" FROM \"TB_TOPIC22\" a LEFT JOIN \"TESTTYPEINFO\" a__Type ON a__Type.\"GUID\" = a.\"TYPEGUID\"", sql);
             query.ToList();
+            query.ToList(true);
 
             query = select.LeftJoin(a => a.Type.Guid == a.TypeGuid && a.Type.Name == "xxx");
             sql = query.ToSql().Replace("\r\n", "");
@@ -475,6 +476,7 @@ namespace FreeSql.Tests.Dameng
             var sql = query.ToSql().Replace("\r\n", "");
             Assert.Equal("SELECT a.\"ID\", a.\"CLICKS\", a.\"TYPEGUID\", a__Type.\"GUID\", a__Type.\"PARENTID\", a__Type.\"NAME\", a.\"TITLE\", a.\"CREATETIME\" FROM \"TB_TOPIC22\" a RIGHT JOIN \"TESTTYPEINFO\" a__Type ON a__Type.\"GUID\" = a.\"TYPEGUID\"", sql);
             query.ToList();
+            query.ToList(true);
 
             query = select.RightJoin(a => a.Type.Guid == a.TypeGuid && a.Type.Name == "xxx");
             sql = query.ToSql().Replace("\r\n", "");
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select0ProviderReader.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select0ProviderReader.cs
index d4bf7c3d..ca961a7f 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select0ProviderReader.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select0ProviderReader.cs
@@ -475,10 +475,13 @@ namespace FreeSql.Internal.CommonProvider
                                         Expression.GreaterThan(readExpDataIndex, dataIndexExp),
                                         Expression.Assign(dataIndexExp, readExpDataIndex)
                                     ),
-                                    Expression.IfThenElse(
-                                        Expression.NotEqual(readExpValue, Expression.Constant(null)),
-                                        Expression.Assign(curExp, Expression.Convert(readExpValue, typei)),
-                                        Expression.Assign(curExp, Expression.Constant(null, typei))
+                                    Expression.IfThen(
+                                        Expression.NotEqual(retExp, Expression.Constant(null)),
+                                        Expression.IfThenElse(
+                                            Expression.NotEqual(readExpValue, Expression.Constant(null)),
+                                            Expression.Assign(curExp, Expression.Convert(readExpValue, typei)),
+                                            Expression.Assign(curExp, Expression.Constant(null, typei))
+                                        )
                                     )
                                 }),
                                 Expression.Block(