From a9ebc23599a647027a080bea342c705d1bddcaae Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Sat, 4 Nov 2017 23:57:10 +0300
Subject: [PATCH] Added comment [#CLICKHOUSE-2].

---
 libs/libcommon/include/ext/shared_ptr_helper.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/libcommon/include/ext/shared_ptr_helper.h b/libs/libcommon/include/ext/shared_ptr_helper.h
index 534ddc583e9..5e019d77005 100644
--- a/libs/libcommon/include/ext/shared_ptr_helper.h
+++ b/libs/libcommon/include/ext/shared_ptr_helper.h
@@ -14,6 +14,7 @@ namespace ext
   * - your class cannot be final;
   * - bad compilation error messages;
   * - bad code navigation.
+  * - different dynamic type of created object, you cannot use typeid.
   */
 template <typename T>
 struct shared_ptr_helper