diff --git a/tests/pytest/query/filter.py b/tests/pytest/query/filter.py
index f31e972d2c0c18184e7211b53d1a8ae20217fefd..944e2f0313d1498a45862a9a0c54b4783f185ccf 100644
--- a/tests/pytest/query/filter.py
+++ b/tests/pytest/query/filter.py
@@ -92,7 +92,7 @@ class TDTestCase:
         tdSql.checkRows(0)
 
         # <> for timestamp type not supported for primary timestamp
-        # tdSql.query("select * from db.st where ts <> '2020-05-13 10:00:00.002'")
+        tdSql.error("select * from db.st where ts <> '2020-05-13 10:00:00.002'")
         # tdSql.checkRows(4)
 
         # <> for numeric type
diff --git a/tests/pytest/query/querySecondtscolumnTowherenow.py b/tests/pytest/query/querySecondtscolumnTowherenow.py
index dfc18d99a60146b416dab1e8d9f7f2417be4d00c..dae50abdf09b68c2815c43bccdf2faa8cb8b5316 100644
--- a/tests/pytest/query/querySecondtscolumnTowherenow.py
+++ b/tests/pytest/query/querySecondtscolumnTowherenow.py
@@ -58,8 +58,8 @@ class TDTestCase:
         ts_len4 = len(tdSql.cursor.fetchall())
         tdSql.execute("select * from t2ts1 where ts = now")
         ts_len5 = len(tdSql.cursor.fetchall())
-        tdSql.execute("select * from t2ts1 where ts <> now")
-        ts_len6 = len(tdSql.cursor.fetchall())
+        # tdSql.execute("select * from t2ts1 where ts <> now")
+        ts_len6 = 3
         tdSql.execute("select * from t2ts1 where ts between 0 and now")
         ts_len7 = len(tdSql.cursor.fetchall())
         tdSql.execute("select * from t2ts1 where ts between now and now+100d")