diff --git a/tests/pytest/insert/schemalessInsert.py b/tests/pytest/insert/schemalessInsert.py
index 0a917b36ec473aba3dd3f7fca686933de72f36ac..5582f4784985298e26d2f639acf7c074722d0b59 100644
--- a/tests/pytest/insert/schemalessInsert.py
+++ b/tests/pytest/insert/schemalessInsert.py
@@ -277,6 +277,7 @@ class TDTestCase:
         return tb_name
 
     def resHandle(self, query_sql, query_tag):
+        tdSql.execute('reset query cache')
         row_info = tdSql.query(query_sql, query_tag)
         col_info = tdSql.getColNameList(query_sql, query_tag)
         res_row_list = []