diff --git a/tests/system-test/2-query/interp.py b/tests/system-test/2-query/interp.py
index ce57357abda6564238362bcb861abab5e92f3947..d30575aaa3561e2c141b5f99768d8b7b6fd6c4a0 100644
--- a/tests/system-test/2-query/interp.py
+++ b/tests/system-test/2-query/interp.py
@@ -1850,15 +1850,16 @@ class TDTestCase:
         tdSql.error(f"select interp('abcd') from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05') every(1d) fill(null)")
         tdSql.error(f"select interp('中文字符') from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05') every(1d) fill(null)")
 
+
         tdLog.printNoPrefix("==========step13:stable cases")
 
-        #tdSql.query(f"select interp(c0) from {dbname}.{stbname} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
+        tdSql.error(f"select interp(c0) from {dbname}.{stbname} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
         #tdSql.query(f"select interp(c0) from {dbname}.{ctbname1} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
-        #tdSql.query(f"select interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1s) fill(null)")
+        tdSql.error(f"select interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
         #tdSql.query(f"select _irowts,interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1h) fill(prev)")