Re: Fortify float4 and float8 regression tests by ordering test results

Alexander Korotkov <aekorotkov@gmail.com> writes:
> I'd like to add that float4.out not only assumes that insert-ordering is
> preserved (this could be more-or-less portable between table AMs).  It also
> assumes the way UPDATE moves updated rows.  That seems quite
> heap-specific.  You can see in the following fragment, updated rows jump to
> the bottom.

I'd be willing to consider a policy that we don't want to depend on
exactly where UPDATE moves rows to.  The proposed patch is not that,
however.

            regards, tom lane