Hi,
Is there a way to create a new composite type using already existing composite type?
For example,
CREATE TABLE inventory_item (   name            text,   supplier_id     integer REFERENCES suppliers,   price           numeric CHECK (price > 0)
);
produces the following type automatically
CREATE TYPE inventory_item AS (   name            text,   supplier_id     integer,   price           numeric
);
but I'd also like to have a type with an extra column for certain functions
CREATE TYPE inventory_item2 AS (   name            text,   supplier_id     integer,   price           numeric,
size	integer
);
but it would be handy if I could reuse inventory_item instead of having to retype the whole lot. I can't work out or find the right syntax, can anyone show me how? Any help would be much appreciated.
Regards
Iain