From a61b7f2326f78fd4c61797451708d21a4874c946 Mon Sep 17 00:00:00 2001
From: vdimir <vdimir@yandex-team.ru>
Date: Mon, 12 Jul 2021 18:00:55 +0300
Subject: [PATCH] Add reqired right keys to join totals block

---
 src/Interpreters/join_common.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Interpreters/join_common.cpp b/src/Interpreters/join_common.cpp
index 5548667e1a7..dd221b94808 100644
--- a/src/Interpreters/join_common.cpp
+++ b/src/Interpreters/join_common.cpp
@@ -329,8 +329,12 @@ void joinTotals(const Block & totals, const Block & columns_to_add, const TableJ
 
     if (Block totals_without_keys = totals)
     {
+        const auto & required_right = table_join.requiredRightKeys();
         for (const auto & name : table_join.keyNamesRight())
-            totals_without_keys.erase(totals_without_keys.getPositionByName(name));
+        {
+            if (!required_right.contains(name))
+                totals_without_keys.erase(totals_without_keys.getPositionByName(name));
+        }
 
         for (auto & col : totals_without_keys)
         {