Is there any way to define a natural sorting order for composite types? For
example, let's say you have a type like:

CREATE TYPE contrived AS (
    i1 integer,
    i2 integer
);

The semantics of this contrived type are that the natural order is
ascending NULLS first for i1 and descending NULLS last for i2. I know I can
do an ORDER BY per query and specify each part separately, but if my
contrived example has a perceived natural sort order, is there any way to
set that in a global way so that I can simply and universally ORDER BY
my_contrived_column?

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