From 6d00f5dd39af1068aa11896efd8432543394c886 Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Fri, 18 Aug 2023 15:06:30 +0800
Subject: [PATCH] fix: empty tbname param issue

---
 source/libs/planner/src/planLogicCreater.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/libs/planner/src/planLogicCreater.c b/source/libs/planner/src/planLogicCreater.c
index 709d61b21f..0170eb7e8c 100644
--- a/source/libs/planner/src/planLogicCreater.c
+++ b/source/libs/planner/src/planLogicCreater.c
@@ -45,8 +45,10 @@ static void setColumnInfo(SFunctionNode* pFunc, SColumnNode* pCol, bool isPartit
     case FUNCTION_TYPE_TBNAME:
       pCol->colType = COLUMN_TYPE_TBNAME;
       SValueNode* pVal = (SValueNode*)nodesListGetNode(pFunc->pParameterList, 0);
-      strcpy(pCol->tableName, pVal->literal);
-      strcpy(pCol->tableAlias, pVal->literal);
+      if (pVal) {
+        strcpy(pCol->tableName, pVal->literal);
+        strcpy(pCol->tableAlias, pVal->literal);
+      }
       break;
     case FUNCTION_TYPE_WSTART:
       if (!isPartitionBy) {