Ron Johnson wrote:
CREATE TYPE ty_fraction AS
(
n SMALLINT,
d SMALLINT
);
You'd need a type for large integers first - otherwise your
ty_fraction will be quite limited. I think numeric could be
used for that, though I don't know if numeric guarantees that
at least the operators +,-,* and modulo return exact results
(Don't loose digits). But even if they do, using some existing
library for arbitrary sized integers would probably lead to
better performance.
greetings, Florian Pflug
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