From c78443d9393781b7ca00e04673b16fa9522a42f4 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Sun, 22 Dec 2019 23:50:33 +0300
Subject: [PATCH] Avoid using query_id from old threads

---
 dbms/src/Interpreters/ThreadStatusExt.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dbms/src/Interpreters/ThreadStatusExt.cpp b/dbms/src/Interpreters/ThreadStatusExt.cpp
index 8c578422d6..0bf1ac36d3 100644
--- a/dbms/src/Interpreters/ThreadStatusExt.cpp
+++ b/dbms/src/Interpreters/ThreadStatusExt.cpp
@@ -197,6 +197,7 @@ void ThreadStatus::detachQuery(bool exit_if_already_detached, bool thread_exits)
     /// Must reset pointer to thread_group's memory_tracker, because it will be destroyed two lines below.
     memory_tracker.setParent(nullptr);
 
+    query_id.clear();
     query_context = nullptr;
     thread_group.reset();
 
-- 
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