diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index 594fbad3..537315e2 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -733,6 +733,15 @@
             <param name="modelBuilder"></param>
             <returns></returns>
         </member>
+        <member name="M:FreeSqlDbContextExtensions.ApplyConfigurationsFromAssembly(FreeSql.ICodeFirst,System.Reflection.Assembly,System.Func{System.Type,System.Boolean})">
+            <summary>
+            根据Assembly扫描所有继承IEntityTypeConfiguration&lt;T&gt;的配置类
+            </summary>
+            <param name="codeFirst"></param>
+            <param name="assembly"></param>
+            <param name="predicate"></param>
+            <returns></returns>
+        </member>
         <member name="M:FreeSqlDbContextExtensions.CreateDbContext(IFreeSql)">
             <summary>
             创建普通数据上下文档对象
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
index 7b5c2a13..8f8d1400 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
@@ -1336,25 +1336,28 @@ namespace FreeSql.Internal.CommonProvider
                                 }).ToArray();
                                 var arrExp = Expression.NewArrayInit(tbref.RefColumns[0].CsType, listKeys.Where(a => a != null).SelectMany(a => a).Distinct()
                                     .Select(a => Expression.Constant(Utils.GetDataReaderValue(tbref.RefColumns[0].CsType, a), tbref.RefColumns[0].CsType)).ToArray());
-                                var otmExpParm1 = Expression.Parameter(typeof(TNavigate), "a");
-                                var containsMethod = _dicTypeMethod.GetOrAdd(tbref.RefColumns[0].CsType, et => new ConcurrentDictionary<string, MethodInfo>()).GetOrAdd("Contains", mn =>
-                                    typeof(Enumerable).GetMethods().Where(a => a.Name == mn).First()).MakeGenericMethod(tbref.RefColumns[0].CsType);
-                                var refCol = Expression.MakeMemberAccess(otmExpParm1, tbref2.Properties[tbref.RefColumns[0].CsName]);
-                                subSelect.Where(Expression.Lambda<Func<TNavigate, bool>>(
-                                    Expression.Call(null, containsMethod, arrExp, refCol), otmExpParm1));
-
-                                if (isAsync)
+                                if (arrExp.Expressions.Any())
                                 {
+                                    var otmExpParm1 = Expression.Parameter(typeof(TNavigate), "a");
+                                    var containsMethod = _dicTypeMethod.GetOrAdd(tbref.RefColumns[0].CsType, et => new ConcurrentDictionary<string, MethodInfo>()).GetOrAdd("Contains", mn =>
+                                        typeof(Enumerable).GetMethods().Where(a => a.Name == mn).First()).MakeGenericMethod(tbref.RefColumns[0].CsType);
+                                    var refCol = Expression.MakeMemberAccess(otmExpParm1, tbref2.Properties[tbref.RefColumns[0].CsName]);
+                                    subSelect.Where(Expression.Lambda<Func<TNavigate, bool>>(
+                                        Expression.Call(null, containsMethod, arrExp, refCol), otmExpParm1));
+
+                                    if (isAsync)
+                                    {
 #if net40
 #else
-                                    if (selectExp == null) subList = await subSelect.ToListAsync(true, cancellationToken);
-                                    else subList = await subSelect.ToListAsync<TNavigate>(selectExp, cancellationToken);
+                                        if (selectExp == null) subList = await subSelect.ToListAsync(true, cancellationToken);
+                                        else subList = await subSelect.ToListAsync<TNavigate>(selectExp, cancellationToken);
 #endif
-                                }
-                                else
-                                {
-                                    if (selectExp == null) subList = subSelect.ToList(true);
-                                    else subList = subSelect.ToList<TNavigate>(selectExp);
+                                    }
+                                    else
+                                    {
+                                        if (selectExp == null) subList = subSelect.ToList(true);
+                                        else subList = subSelect.ToList<TNavigate>(selectExp);
+                                    }
                                 }
 
                                 if (subList.Any() == false)