Re: max_parallel_degree > 0 for 9.6 beta

Robert Haas <robertmhaas@gmail.com> writes:
> On Wed, Apr 20, 2016 at 2:28 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Andres Freund <andres@anarazel.de> writes:
>>> max_parallel_degree currently defaults to 0.  I think we should enable
>>> it by default for at least the beta period. Otherwise we're primarily
>>> going to get reports back after the release.

> So, I suggest that the only sensible non-zero values here are probably
> "1" or "2", given a default pool of 8 worker processes system-wide.
> Andres told me yesterday he'd vote for "2".  Any other opinions?

It has to be at least 2 for beta purposes, else you are not testing
situations with more than one worker process at all, which would be
rather a large omission no?
        regards, tom lane