On Thu, 2005-11-17 at 11:20 -0500, Tom Lane wrote:
> Andrew Dunstan <andrew@dunslane.net> writes:
> > However, I don't think we can promise never to change the ondisk
> > representation of data, nor the page layout. Sometimes an inplace
> > upgrade just won't work, ISTM.
>
> We have talked about batching on-disk changes so that they'd only occur
> once every few release cycles. But until we have a pg_upgrade, there is
> no reason to adopt such a policy.
If the patch is accepted technically, in can be applied at any time,
right up to code freeze for this or the next release. It's a fairly
independent patch.
I'd suggest we check it out now, then put it in a holding pen for awhile
to see if an upgrade tool emerges.
Best Regards, Simon Riggs