Is there way to detect uncommitted 'new table' in pg_class?

Hi all,

In PG READ UNCOMMITTED is treated as READ COMMITTED
But I have a requirement to read dirty table. Is there way to detect table
which is created in other uncommitted transaction?

T1:
BEGIN;
create table a(i int);

T2:
select * from pg_class where relname='a';
could return table a?
--
Thanks

Hubert Zhang