From 8da9f150de807e5d8181c32ddd50e7250ffcb1d2 Mon Sep 17 00:00:00 2001
From: alesapin <alesapin@gmail.com>
Date: Tue, 9 Feb 2021 11:51:17 +0300
Subject: [PATCH] Fix race in system.parts

---
 src/Storages/System/StorageSystemParts.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Storages/System/StorageSystemParts.cpp b/src/Storages/System/StorageSystemParts.cpp
index bc5a96c6159..45e1663cb93 100644
--- a/src/Storages/System/StorageSystemParts.cpp
+++ b/src/Storages/System/StorageSystemParts.cpp
@@ -193,8 +193,9 @@ void StorageSystemParts::processNextStorage(MutableColumns & columns_, const Sto
         add_ttl_info_map(part->ttl_infos.rows_where_ttl);
 
         /// _state column should be the latest.
+        /// Do not use part->getState*, it can be changed from different thread
         if (has_state_column)
-            columns_[i++]->insert(part->stateString());
+            columns_[i++]->insert(IMergeTreeDataPart::stateToString(part_state));
     }
 }