From a8bc2722f43a98bf9bee8cae777d490af62b5f0d Mon Sep 17 00:00:00 2001
From: Nikolai Kochetov <nik-kochetov@yandex-team.ru>
Date: Sat, 20 Feb 2021 14:04:32 +0300
Subject: [PATCH] Fix getHeaderForProcessingStage

---
 src/Interpreters/getHeaderForProcessingStage.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Interpreters/getHeaderForProcessingStage.cpp b/src/Interpreters/getHeaderForProcessingStage.cpp
index 3adbab8413f..b56b90cdf3f 100644
--- a/src/Interpreters/getHeaderForProcessingStage.cpp
+++ b/src/Interpreters/getHeaderForProcessingStage.cpp
@@ -47,7 +47,10 @@ Block getHeaderForProcessingStage(
                 auto & prewhere_info = *query_info.prewhere_info;
 
                 if (prewhere_info.row_level_filter)
+                {
                     prewhere_info.row_level_filter->execute(header);
+                    header.erase(prewhere_info.row_level_column_name);
+                }
 
                 if (prewhere_info.prewhere_actions)
                     prewhere_info.prewhere_actions->execute(header);