Andres Freund <andres(at)anarazel(dot)de> writes:
> Oh, and we've previously re-added that based on
> complaints. C.f. d543170f2fdd6d9845aaf91dc0f6be7a2bf0d9e7 (and others
> IIRC).
That one wasn't about row order per se, but I agree that people *will*
bitch if we change the behavior, especially if we don't provide a way
to fix it. ORDER BY is not a useful suggestion when there is nothing
you could order by to get the old behavior.
regards, tom lane