On Wed, Feb 10, 2016 at 5:00 PM, Amit Kapila <amit.kapil...@gmail.com> wrote:
> Okay, but isn't it better that we remove the snapshot taken
> at checkpoint time in the main branch or till where this code is
> getting back-patched.   Do you see any need of same after
> having the logging of snapshot in bgwriter?

But this one is necessary as well to allow hot standby faster to
initialize, no? Particularly in the case where a bgwriter snapshot
would have been taken just before the checkpoint, there may be up to
15s until the next one.

And AFAIK, this code would not get a back-patch, as stated by Andres
upthread :( I would think that it is better to actually get a
backpatch, but well...

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