diff --git a/dbms/include/DB/Storages/MergeTree/ActiveDataPartSet.h b/dbms/include/DB/Storages/MergeTree/ActiveDataPartSet.h
index ec4509298b7..3cfdc8d8942 100644
--- a/dbms/include/DB/Storages/MergeTree/ActiveDataPartSet.h
+++ b/dbms/include/DB/Storages/MergeTree/ActiveDataPartSet.h
@@ -42,9 +42,6 @@ public:
 			if (right != rhs.right)
 				return right < rhs.right;
 
-			if (level != rhs.level)
-				return level < rhs.level;
-
 			return false;
 		}
 
@@ -53,7 +50,6 @@ public:
 		{
 			return left_month == rhs.left_month		/// Куски за разные месяцы не объединяются
 				&& right_month == rhs.right_month
-				&& level > rhs.level
 				&& left_date <= rhs.left_date
 				&& right_date >= rhs.right_date
 				&& left <= rhs.left