diff --git a/tests/pytest/query/nestedQuery/nestedQuery_datacheck.py b/tests/pytest/query/nestedQuery/nestedQuery_datacheck.py
index 311133b8c8911c1d9d8fe90fd5e556571f8e9548..20452cd886932169836964f6e816e66cdb9daf0c 100755
--- a/tests/pytest/query/nestedQuery/nestedQuery_datacheck.py
+++ b/tests/pytest/query/nestedQuery/nestedQuery_datacheck.py
@@ -619,8 +619,11 @@ class TDTestCase:
             sql += "%s )" % random.choice(t_join_where)
             datacheck = self.stable_join_checkall_0(sql)           
             tdSql.checkRows(100)
-            datacheck = self.stable_join_checkall_100(sql)       
- 
+            datacheck = self.stable_join_checkall_100(sql)
+
+            # for TD-14342
+            sql = "select  * from  ( select  * from stable_1 ) where t_nchar like 'nchar%' or t_nchar = '0'"
+            datacheck = self.stable1_checkall_0(sql)
 
         endTime = time.time()
         print("total time %ds" % (endTime - startTime))