Re: pg_upgrade resets timeline to 1

Re: Noah Misch 2015-05-28 <20150528150234(dot)GA4111886(at)tornado(dot)leadboat(dot)com>
> On Thu, May 28, 2015 at 10:20:58AM -0400, Bruce Momjian wrote:
> > On Thu, May 28, 2015 at 08:47:07AM +0100, Simon Riggs wrote:
> > > What we should be saying is that the last timeline doesn't need a history file.
> > > Then no change is needed here.
> >
> > Yes, that would make a lot more sense than what we have now, but this
> > had to be backpatched, so reverting to the 9.3 and earlier behavior
> > seemed logical.
>
> To clarify for the archives, the 2015-05-16 changes did not revert to 9.3 and
> earlier behavior. Rather, they standardized on the {9.0,9.1,9.2}-to-{9.3,9.4}
> upgrade behavior, bringing that behavior to all supported branches and source
> versions. Here is the history of timeline restoration in pg_upgrade:

Ok, sorry for the noise then. It's not a regression, but I still think
the behavior needs improvement, but this is indeed 9.6 material.

Christoph
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