From 417938d2b294eeb9cac553caeb1c6adc4ecdffe2 Mon Sep 17 00:00:00 2001
From: 54liuyao <54liuyao@163.com>
Date: Fri, 25 Oct 2024 17:21:28 +0800
Subject: [PATCH] fix issue

---
 source/libs/executor/src/sysscanoperator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/source/libs/executor/src/sysscanoperator.c b/source/libs/executor/src/sysscanoperator.c
index 112c52ba23..a997a95686 100644
--- a/source/libs/executor/src/sysscanoperator.c
+++ b/source/libs/executor/src/sysscanoperator.c
@@ -2032,8 +2032,7 @@ static EDealRes getDBNameFromConditionWalker(SNode* pNode, void* pContext) {
 
       SValueNode* node = (SValueNode*)pNode;
       char*       dbName = nodesGetValueFromNode(node);
-      tstrncpy((char*)pContext, varDataVal(dbName), varDataLen(dbName));
-      *((char*)pContext + varDataLen(dbName)) = 0;
+      tstrncpy((char*)pContext, varDataVal(dbName), varDataLen(dbName) + 1);
       return DEAL_RES_END;  // stop walk
     }
     default: