FROM Clause subquery

Hi All

I have problems on 'from clause subquery'.

test=# create sequence test_seq;
test=# select * from test_seq

Result:

sequence_name | last_value | increment_by | max_value | min_value | cache_value | log_cnt | is_cycled | is_called
---------------+------------+--------------+---------------------+-----------+-------------+---------+-----------+-----------
test_seq | 1 | 1 | 9223372036854775807 | 1 | 1 | 1 | f | f
(1 row)

Now I want to get sequence fields following:

test=# select * from (select relname from pg_class where relkind='S') as foo;

My Result:

relname
-------------------------
test_seq
(1 rows)

Why? FROM Clause subquery not working? or my mistakes?

Help Me!

Bye.