- 补充 ISelect`T1...T10 LeftJoin/InnerJoin/RightJoin 多参数方法；

FreeSql.Tests/FreeSql.Tests/UnitTest1.cs

@@ -341,7 +341,10 @@ namespace FreeSql.Tests
         [Fact]
         public void Test1()
         {
-            var kfkfjdfg = g.oracle.Select<Templates>().Where(a => (DateTime.Now - a.EditTime).TotalMinutes > 100).ToSql();
+            g.oracle.Select<Templates, TaskBuild>()
+                .InnerJoin((a,b) => true)
+                .Where((a,b) => (DateTime.Now - a.EditTime).TotalMinutes > 100)
+                .ToSql();
             
 
             g.oracle.Aop.SyncStructureAfter += (s, e) => 

FreeSql/Interface/Curd/ISelect/ISelect10.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect2.cs

@@ -34,6 +34,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
 
+        ISelect<T1, T2> LeftJoin(Expression<Func<T1, T2, bool>> exp);
+        ISelect<T1, T2> InnerJoin(Expression<Func<T1, T2, bool>> exp);
+        ISelect<T1, T2> RightJoin(Expression<Func<T1, T2, bool>> exp);
+
         ISelect<T1, T2> Where(Expression<Func<T1, T2, bool>> exp);
         ISelect<T1, T2> WhereIf(bool condition, Expression<Func<T1, T2, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect3.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
 
+        ISelect<T1, T2, T3> LeftJoin(Expression<Func<T1, T2, T3, bool>> exp);
+        ISelect<T1, T2, T3> InnerJoin(Expression<Func<T1, T2, T3, bool>> exp);
+        ISelect<T1, T2, T3> RightJoin(Expression<Func<T1, T2, T3, bool>> exp);
+
         ISelect<T1, T2, T3> Where(Expression<Func<T1, T2, T3, bool>> exp);
         ISelect<T1, T2, T3> WhereIf(bool condition, Expression<Func<T1, T2, T3, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect4.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
 
+        ISelect<T1, T2, T3, T4> LeftJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+        ISelect<T1, T2, T3, T4> InnerJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+        ISelect<T1, T2, T3, T4> RightJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+
         ISelect<T1, T2, T3, T4> Where(Expression<Func<T1, T2, T3, T4, bool>> exp);
         ISelect<T1, T2, T3, T4> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect5.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5> RightJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5> Where(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
         ISelect<T1, T2, T3, T4, T5> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect6.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6> Where(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect7.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect8.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
 

FreeSql/Interface/Curd/ISelect/ISelect9.cs

@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
 

FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs

@@ -177,6 +177,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<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>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs

@@ -153,6 +153,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2> ISelect<T1, T2>.LeftJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2> ISelect<T1, T2>.InnerJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2> ISelect<T1, T2>.RightJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2> ISelect<T1, T2>.Where(Expression<Func<T1, T2, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs

@@ -156,6 +156,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.LeftJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.InnerJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.RightJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3> ISelect<T1, T2, T3>.Where(Expression<Func<T1, T2, T3, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs

@@ -159,6 +159,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.LeftJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.InnerJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.RightJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.Where(Expression<Func<T1, T2, T3, T4, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs

@@ -162,6 +162,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.Where(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs

@@ -165,6 +165,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs

@@ -168,6 +168,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs

@@ -171,6 +171,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
         {
             if (exp == null) return this.Where(null);

FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs

@@ -174,6 +174,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
         {
             if (exp == null) return this.Where(null);