From 2e08de2b45bdf99c320176c64f29a11452ab1647 Mon Sep 17 00:00:00 2001
From: dapan1121 <89396746@qq.com>
Date: Mon, 10 May 2021 09:26:19 +0800
Subject: [PATCH] fix crash issue

---
 src/client/src/tscPrepare.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index c8a3b963f0..6307643c95 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -1388,6 +1388,7 @@ int taos_stmt_close(TAOS_STMT* stmt) {
       taosHashCleanup(pStmt->mtb.pTableHash);
       pStmt->mtb.pTableBlockHashList = tscDestroyBlockHashTable(pStmt->mtb.pTableBlockHashList, true);
       taosHashCleanup(pStmt->pSql->cmd.pTableBlockHashList);
+      pStmt->pSql->cmd.pTableBlockHashList = NULL;
     }
   }
 
-- 
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