Re: Something flaky in the "relfilenode mapping" infrastructure

Andres Freund <andres@2ndquadrant.com> writes:
> I don't think it's necessary. As far as I understand LATERAL, a join to
> a function returning NULL will still return the row. So, the test now
> would only test whether there are rows in pg_class which seems a bit
> pointless.

Yeah, after looking closer I'd come to the same conclusion.  If the
lateral function call could generate zero rows it'd perhaps be a risk,
but not in this formulation.

Will commit in a moment.
        regards, tom lane