Using As with Inheritance?

I have a parallel inheritance going on,
so I was wondering if there was a way
to re-name a derived column?  This would
make my design clearer.
-----------------

CREATE TABLE B
( NAME VARCHAR(10) );

CREATE TABLE C
( ... ) INHERITS(B);

CREATE TABLE X
( 
   A VARCHAR(10),
   B VARCHAR(10),
   CONSTRAINT FOREIGN KEY (B) REFERENCES B(OID)
);

CREATE TABLE Y 
(  B AS C,              /* Syntatic Sugar */
   D VARCHAR(10),
   CONSTRAINT FOREIGN KEY (C) REFERENCES C(OID)
) INHERITS(X)


Here, I've added the syntax "AS" to show that
column A in table X, is called B in the 
derived table Y.

Thank you for your thoughts.

:) Clark Evans