Thomas Lockhart <lockhart(at)alumni(dot)caltech(dot)edu> writes:
>> I always thought that an OID was unsigned ...
>
> It is. But we cheat and use the int4 i/o routines. There are notes in
> the sources pointing this out.
We also cheat by using the int4 comparison routines, so sort order is
not what it should be ...
regards, tom lane