diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index 5a0c8bd0..9c6cd88b 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -130,6 +130,13 @@
             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
diff --git a/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
index 40d64009..3eefc1ef 100644
--- a/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs
@@ -812,6 +812,10 @@ namespace FreeSql.Tests.Dameng
         public void ToAggregate()
         {
             var sql = select.ToAggregate(a => new { sum = a.Sum(a.Key.Id + 11.11), avg = a.Avg(a.Key.Id), count = a.Count(), max = a.Max(a.Key.Id), min = a.Min(a.Key.Id) });
+
+            select
+                .Aggregate(a => new { sum = a.Sum(a.Key.Id), count = a.Count() }, out var output)
+                .ToList();
         }
         [Fact]
         public void OrderBy()
diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
index 2dec40eb..dcfab4da 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
@@ -231,8 +231,6 @@ namespace FreeSql.Tests
                     Id = a.Key, 
                     EdiId1 = SqlExt.Max(a.Key).Over().PartitionBy(new { a.Value.EdiId, a.Value.Id }).OrderByDescending(new { a.Value.EdiId, a.Value.Id }).ToValue(),
                     EdiId2 = SqlExt.Max(a.Key).Over().PartitionBy(a.Value.EdiId).OrderByDescending(a.Value.Id).ToValue(),
-
-                    Sub1 = g.sqlserver.Select<Edi>().Where(b => b.Id == a.Key).Count()
                 });
 
             var sqlextGroupConcat = g.mysql.Select<Edi, EdiItem>()
diff --git a/FreeSql/FreeSql.xml b/FreeSql/FreeSql.xml
index 983c8c85..030132d4 100644
--- a/FreeSql/FreeSql.xml
+++ b/FreeSql/FreeSql.xml
@@ -2032,6 +2032,18 @@
             <param name="select"></param>
             <returns></returns>
         </member>
+        <member name="M:FreeSql.ISelect`1.Aggregate``1(System.Linq.Expressions.Expression{System.Func{FreeSql.ISelectGroupingAggregate{`0},``0}},``0@)">
+            <summary>
+            执行SQL查询，返回指定字段的聚合结果给 output 参数<para></para>
+            fsql.Select&lt;T&gt;()<para></para>
+            .Aggregate(a =&gt; new { count = a.Count, sum = a.Sum(a.Key.Price) }, out var agg)<para></para>
+            .Page(1, 10).ToList();
+            </summary>
+            <typeparam name="TReturn"></typeparam>
+            <param name="select"></param>
+            <param name="result"></param>
+            <returns></returns>
+        </member>
         <member name="M:FreeSql.ISelect`1.Sum``1(System.Linq.Expressions.Expression{System.Func{`0,``0}})">
             <summary>
             求和
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect1.cs b/FreeSql/Interface/Curd/ISelect/ISelect1.cs
index 96daf821..fd7a814c 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect1.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect1.cs
@@ -110,6 +110,17 @@ namespace FreeSql
         /// <param name="select"></param>
         /// <returns></returns>
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, TReturn>> select);
+        /// <summary>
+        /// 执行SQL查询，返回指定字段的聚合结果给 output 参数<para></para>
+        /// fsql.Select&lt;T&gt;()<para></para>
+        /// .Aggregate(a =&gt; new { count = a.Count, sum = a.Sum(a.Key.Price) }, out var agg)<para></para>
+        /// .Page(1, 10).ToList();
+        /// </summary>
+        /// <typeparam name="TReturn"></typeparam>
+        /// <param name="select"></param>
+        /// <param name="result"></param>
+        /// <returns></returns>
+        ISelect<T1> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, TReturn>> select, out TReturn result);
 
         /// <summary>
         /// 求和
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect10.cs b/FreeSql/Interface/Curd/ISelect/ISelect10.cs
index 1acf96da..f35462e6 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect10.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect10.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, ISelectGroupingAggregate<T10>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, ISelectGroupingAggregate<T10>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect2.cs b/FreeSql/Interface/Curd/ISelect/ISelect2.cs
index 6bcdaac6..a6aeaa28 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect2.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect2.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, TReturn>> select);
+        ISelect<T1, T2> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect3.cs b/FreeSql/Interface/Curd/ISelect/ISelect3.cs
index ea441d28..35a6212a 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect3.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect3.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, TReturn>> select);
+        ISelect<T1, T2, T3> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect4.cs b/FreeSql/Interface/Curd/ISelect/ISelect4.cs
index 28e2c5f1..93c6f809 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect4.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect4.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, TReturn>> select);
+        ISelect<T1, T2, T3, T4> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect5.cs b/FreeSql/Interface/Curd/ISelect/ISelect5.cs
index d1947791..12f4714b 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect5.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect5.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect6.cs b/FreeSql/Interface/Curd/ISelect/ISelect6.cs
index 700cdf03..a6f6dffb 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect6.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect6.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5, T6> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect7.cs b/FreeSql/Interface/Curd/ISelect/ISelect7.cs
index d7117d0c..50c4f0a6 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect7.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect7.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5, T6, T7> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect8.cs b/FreeSql/Interface/Curd/ISelect/ISelect8.cs
index 8ed0514a..f03b7904 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect8.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect8.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect9.cs b/FreeSql/Interface/Curd/ISelect/ISelect9.cs
index 96da6b7a..99218e60 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect9.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect9.cs
@@ -40,6 +40,7 @@ namespace FreeSql
 
         string ToSql<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TReturn>> select, FieldAliasOptions fieldAlias = FieldAliasOptions.AsIndex);
         TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, TReturn>> select);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, TReturn>> select, out TReturn result);
         decimal Sum<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
         TMember Min<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
         TMember Max<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
index 3a074d5b..1e9a712a 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
@@ -118,6 +118,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, ISelectGroupingAggregate<T10>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
index 41afd44a..76fbf170 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
@@ -210,6 +210,11 @@ namespace FreeSql.Internal.CommonProvider
             _tables[0].Parameter = select.Parameters[0];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        public ISelect<T1> Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, TReturn>> select, out TReturn result)
+        {
+            result = ToAggregate(select);
+            return this;
+        }
 
         public ISelect<T1> Where(Expression<Func<T1, bool>> exp) => WhereIf(true, exp);
         public ISelect<T1> WhereIf(bool condition, Expression<Func<T1, bool>> exp)
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
index 25a71766..005e485b 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
@@ -94,6 +94,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2> ISelect<T1, T2>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2>.ToList<TReturn>(Expression<Func<T1, T2, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
index e8bac16d..707eccf8 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
@@ -97,6 +97,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3>.ToList<TReturn>(Expression<Func<T1, T2, T3, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
index d4c9f644..c23c314c 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
@@ -100,6 +100,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
index 7a824b06..d85e2577 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
@@ -103,6 +103,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
index 8dcf25e6..71e7edd6 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
@@ -106,6 +106,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5, T6>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5, T6>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
index 703f446b..5b9657c3 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
@@ -109,6 +109,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5, T6, T7>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5, T6, T7>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
index 6ff53f5a..ae1eb8bd 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
@@ -112,6 +112,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5, T6, T7, T8>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TReturn>> select)
         {
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
index 63fb5ae0..f14ae04f 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
@@ -115,6 +115,11 @@ namespace FreeSql.Internal.CommonProvider
             for (var a = 0; a < select.Parameters.Count; a++) _tables[a].Parameter = select.Parameters[a];
             return this.InternalToAggregate<TReturn>(select?.Body);
         }
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.Aggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, ISelectGroupingAggregate<T3>, ISelectGroupingAggregate<T4>, ISelectGroupingAggregate<T5>, ISelectGroupingAggregate<T6>, ISelectGroupingAggregate<T7>, ISelectGroupingAggregate<T8>, ISelectGroupingAggregate<T9>, TReturn>> select, out TReturn result)
+        {
+            result = (this as ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>).ToAggregate(select);
+            return this;
+        }
 
         List<TReturn> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.ToList<TReturn>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TReturn>> select)
         {