Re: Avoiding pin scan during btree vacuum

Robert Haas wrote:
> On Mon, Jan 4, 2016 at 10:30 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> >> This seems like a might subtle thing to backpatch. If we really want to
> >> go there, ISTM that the relevant code should stew in an unreleased
> >> branch for a while, before being backpatched.
> >
> > I'm definitely -1 on back-patching such a thing.  Put it in HEAD for
> > awhile.  If it survives six months or so then we could discuss it again.
> 
> I agree with Tom.

Okay, several months have passed with this in the development branch and
now seems a good time to backpatch this all the way back to 9.4.

Any objections?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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