From e28552ec71e41c7513fd9b4228b359fdd7f3b8fb Mon Sep 17 00:00:00 2001
From: Nikolai Kochetov <nik-kochetov@yandex-team.ru>
Date: Tue, 16 Jun 2020 12:53:59 +0300
Subject: [PATCH] Fix build.

---
 src/Processors/QueryPlan/ExpressionStep.h    | 1 +
 src/Processors/QueryPlan/FilterStep.h        | 1 +
 src/Processors/QueryPlan/ITransformingStep.h | 1 +
 3 files changed, 3 insertions(+)

diff --git a/src/Processors/QueryPlan/ExpressionStep.h b/src/Processors/QueryPlan/ExpressionStep.h
index 997569c6b6f..aa3eae6da43 100644
--- a/src/Processors/QueryPlan/ExpressionStep.h
+++ b/src/Processors/QueryPlan/ExpressionStep.h
@@ -1,3 +1,4 @@
+#pragma once
 #include <Processors/QueryPlan/ITransformingStep.h>
 
 namespace DB
diff --git a/src/Processors/QueryPlan/FilterStep.h b/src/Processors/QueryPlan/FilterStep.h
index 2dd4ca2b71d..faadd41a58d 100644
--- a/src/Processors/QueryPlan/FilterStep.h
+++ b/src/Processors/QueryPlan/FilterStep.h
@@ -1,3 +1,4 @@
+#pragma once
 #include <Processors/QueryPlan/ITransformingStep.h>
 
 namespace DB
diff --git a/src/Processors/QueryPlan/ITransformingStep.h b/src/Processors/QueryPlan/ITransformingStep.h
index 14a08844b36..3e722cf764c 100644
--- a/src/Processors/QueryPlan/ITransformingStep.h
+++ b/src/Processors/QueryPlan/ITransformingStep.h
@@ -1,3 +1,4 @@
+#pragma once
 #include <Processors/QueryPlan/IQueryPlanStep.h>
 
 namespace DB