From b5e17cc2c0b6fba5e955dc4d7b9631b0993147b4 Mon Sep 17 00:00:00 2001
From: flynn <fenglv15@mails.ucas.ac.cn>
Date: Thu, 23 Mar 2023 06:24:58 +0000
Subject: [PATCH] fix

---
 src/Client/QueryFuzzer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Client/QueryFuzzer.cpp b/src/Client/QueryFuzzer.cpp
index ba4246e8d0d..cf288456f81 100644
--- a/src/Client/QueryFuzzer.cpp
+++ b/src/Client/QueryFuzzer.cpp
@@ -1108,7 +1108,7 @@ void QueryFuzzer::fuzz(ASTPtr & ast)
         /// Fuzzing EXPLAIN query to SELECT query randomly
         if (fuzz_rand() % 20 == 0 && explain_query->getExplainedQuery()->getQueryKind() == IAST::QueryKind::Select)
         {
-            ast = explain_query->getExplainedQuery();
+            ast = explain_query->getExplainedQuery()->clone();
             fuzz(ast);
         }
         else