On Thu, 2009-10-29 at 09:32 -0400, Tom Lane wrote:
> Hannu Krosing <hannu@2ndQuadrant.com> writes:
> > Or maybe we could just extract the hashes form some version of stock
> > postgresql (say 8.3) and then make those available in contrib under the
> > name "stable_hashes" ?
>
> A better name would be "wishful_thinking" ... contrib does not have
> control over some of the main risk factors, such as changes to the
> internal representation of datatypes.
Good point. But the internal layout of data types popular for use as
hash key changes rarely. The hash function change, however, is a
showstopper for everyone concerned.