diff --git a/tests/pytest/functions/function_operations.py b/tests/pytest/functions/function_operations.py
index 4bcb9a58a34b4565df99e8dff47f698930b56c9d..8b385844dead0708fb78f3af990ef6c9c2293ffd 100644
--- a/tests/pytest/functions/function_operations.py
+++ b/tests/pytest/functions/function_operations.py
@@ -95,8 +95,7 @@ class TDTestCase:
         for i in col_list :
             for j in col_list :
                 for k in op_list :
-                    for l in [' order by ts' , ' order by ts desc' ]:
-                        sql = " select %s %s %s from test1 %s" % ( i , k , j , l )
+                        sql = " select %s %s %s from test1" % ( i , k , j )
                         if i in err_list or j in err_list:
                             tdSql.error(sql)
                         else: