Forum OpenACS Q&A: %TYPE on views in PG

It seems that %TYPE does not work on view columns, is this a bug or (missing) feature in PG 7.1.2? I could not find %TYPE in the PG documentation, so... does anybody know?

It is used, for example, in acs-messaging the function:

create function acs_message__name (integer)
returns varchar as '
declare
    p_message_id   alias for $1;
    v_message_name  acs_messages_all.title%TYPE;
begin
    select title into v_message_name
        from acs_messages_all
        where message_id = p_message_id;
    return v_message_name;
end;' language 'plpgsql';

The above code does not work, but when I substitute acs_messages_all.title with cr_revisions.title it works just fine.