From c2ca5d29a85b343d1e2bf558db3b4d07c3d4c2ea Mon Sep 17 00:00:00 2001
From: feng lv <fenglv15@mails.ucas.ac.cn>
Date: Thu, 29 Oct 2020 02:40:39 +0000
Subject: [PATCH] fix build

---
 src/Interpreters/InterpreterDropQuery.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Interpreters/InterpreterDropQuery.cpp b/src/Interpreters/InterpreterDropQuery.cpp
index 8bf8675b15d..144e045ecee 100644
--- a/src/Interpreters/InterpreterDropQuery.cpp
+++ b/src/Interpreters/InterpreterDropQuery.cpp
@@ -250,7 +250,7 @@ BlockIO InterpreterDropQuery::executeToDatabase(const ASTDropQuery & query)
     {
         if (query.no_delay)
         {
-            for (const auto table_uuid : tables_to_wait)
+            for (const auto & table_uuid : tables_to_wait)
                 waitForTableToBeActuallyDroppedOrDetached(query, database, table_uuid);
         }
         throw;
@@ -258,7 +258,7 @@ BlockIO InterpreterDropQuery::executeToDatabase(const ASTDropQuery & query)
 
     if (query.no_delay)
     {
-        for (const auto table_uuid : tables_to_wait)
+        for (const auto & table_uuid : tables_to_wait)
             waitForTableToBeActuallyDroppedOrDetached(query, database, table_uuid);
     }
     return res;