From a405c1a06a1067395dcef7c71b90ab983076dced Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Mon, 17 Jan 2022 10:49:41 +0800
Subject: [PATCH] [TD-12861]<fix>(query): taoshell crash : coredump for such as
 "select first(c1)==max(c1) from st"

---
 src/query/src/qSqlParser.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/query/src/qSqlParser.c b/src/query/src/qSqlParser.c
index f927287015..6140abdaca 100644
--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -505,7 +505,7 @@ tSqlExpr *tSqlExprClone(tSqlExpr *pSrc) {
   tSqlExpr *pExpr = calloc(1, sizeof(tSqlExpr));
 
   memcpy(pExpr, pSrc, sizeof(*pSrc));
-  
+
   if (pSrc->pLeft) {
     pExpr->pLeft = tSqlExprClone(pSrc->pLeft);
   }
@@ -518,7 +518,7 @@ tSqlExpr *tSqlExprClone(tSqlExpr *pSrc) {
   tVariantAssign(&pExpr->value, &pSrc->value);
 
   //we don't clone paramList now because clone is only used for between/and
-  assert(pSrc->Expr.paramList == NULL);
+  pSrc->Expr.paramList = NULL;
   return pExpr;
 }
 
-- 
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