Re: max_parallel_degree > 0 for 9.6 beta

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Wed, Apr 20, 2016 at 2:28 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Andres Freund <andres(at)anarazel(dot)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