diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index fa328b6298767a7186c73a692ec4f0ace1cd4c6f..8e579ad2210920c442a4c447c2fed267b658b546 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -866,6 +866,9 @@ bool tscReparseSql(SSqlObj *sql, int32_t code){
     return true;
   }
 
+  tscFreeSubobj(sql);      
+  tfree(sql->pSubs);
+
   sql->res.code = TSDB_CODE_SUCCESS;
   sql->retry++;