Thomas Munro <thomas.munro@gmail.com> writes:
> Forgot to post the actual values:
> r = 2563421694876090368
> r = 2563421694876090365
> Smells a bit like a precision problem in the workings of pg_erand48(),
> but as soon as I saw floating point numbers I closed my laptop and ran
> for the door.
Yup. This test has a touching, but entirely unwarranted, faith in
pg_erand48() producing bit-for-bit the same values everywhere.
regards, tom lane