PRIMARY KEY and INHERITANCE

Hi,

some months ago I've asked for a suggestion for this bug:

create table a (
id serial primary key,
something text
);

create table b (
morething text
) inherits (a);

create table c (
trouble int references b;
);
NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: PRIMARY KEY for referenced table "b" not found

How is possible to resolve this bug?
How is possible to talk about a ORDBMS with this kind of error?

I've looked for workaround, but:

create table d (
mytext text,
primary key (id)
) inherits (a);
ERROR: CREATE TABLE: column 'id' named in key does not exist

How can I help you to fix this?

Best wishes, \fer