From d48e3b354578b1cbca31e4880606be49af9c4d3a Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Wed, 14 Jun 2023 17:00:45 +0800
Subject: [PATCH] add null pointer check

---
 source/libs/parser/src/parTranslater.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 6abac0d9ae..a487c2cbc1 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -1667,7 +1667,7 @@ static int32_t translateForbidSysTableFunc(STranslateContext* pCxt, SFunctionNod
 
   SSelectStmt*   pSelect = (SSelectStmt*)pCxt->pCurrStmt;
   SRealTableNode* pTable = (SRealTableNode*)pSelect->pFromTable;
-  if (TSDB_SYSTEM_TABLE == pTable->pMeta->tableType) {
+  if (NULL != pTable && TSDB_SYSTEM_TABLE == pTable->pMeta->tableType) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_SYSTABLE_NOT_ALLOWED_FUNC, pFunc->functionName);
   }
   return TSDB_CODE_SUCCESS;