Alvaro Herrera <> writes:
> Robert Haas wrote:
>> On Tue, May 3, 2016 at 2:09 PM, Alvaro Herrera <> 
>> wrote:
>>> How about backpatching patch 1 all the way back, and putting the others
>>> in 9.6?

>> Why would we do that?  It seems very odd to back-patch a pure
>> refactoring - isn't that taking a risk for no benefit?

Yeah, I don't see the point of that either.

> My inclination is actually to put the whole series back to 9.2, but if
> we don't want to do that, then backpatching just the first one seems to
> make pg_upgrade more amenable to future bugfixes.

I checked, and found that patch 1 doesn't apply cleanly before 9.5.
I've not looked into exactly why not, but it would possibly take some
work to adapt these patches to older branches.

                        regards, tom lane

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