From 471993b03fc9365ca60ccb2b49779b1a2f183406 Mon Sep 17 00:00:00 2001
From: Nikolai Kochetov <nik-kochetov@yandex-team.ru>
Date: Thu, 14 May 2020 11:56:27 +0300
Subject: [PATCH] Fix build.

---
 src/DataStreams/MergingSortedBlockInputStream.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DataStreams/MergingSortedBlockInputStream.cpp b/src/DataStreams/MergingSortedBlockInputStream.cpp
index 5d4328045dd..ae10617d45a 100644
--- a/src/DataStreams/MergingSortedBlockInputStream.cpp
+++ b/src/DataStreams/MergingSortedBlockInputStream.cpp
@@ -198,7 +198,7 @@ void MergingSortedBlockInputStream::merge(MutableColumns & merged_columns, TSort
                 for (size_t i = 0; i < num_columns; ++i)
                 {
                     auto & column = merged_columns[i];
-                    column = (*column->cut(0, merged_rows)).mutate();
+                    column = IColumn::mutate(column->cut(0, merged_rows));
                 }
 
                 cancel(false);