On Thu, Jun 9, 2016 at 7:04 AM, Robert Haas <robertmh...@gmail.com> wrote:
> OK, I pushed this after re-reviewing it and fixing a number of
> oversights.  There remains only the task of adding max_parallel_degree
> as a system-wide limit (as opposed to max_parallel_degree now
> max_parallel_workers_per_gather which is a per-Gather limit), which
> I'm going to argue should be a new open item and not necessarily one
> that I have to own myself.  I would like to take care of it, but I
> will not put it ahead of fixing actual defects and I will not promise
> to have it done in time for 9.6.

I am in favor of having something similar to
max_parallel_workers_per_gather for utility statements like CREATE
INDEX. That will need a cost model, at least where the DBA isn't
explicit about the number of workers to use.

-- 
Peter Geoghegan


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