On Fri, Sep 27, 2019 at 8:07 PM Jeff Davis <pgsql@j-davis.com> wrote:
> The current docs for max_parallel_workers start out:
>
> "Sets the maximum number of workers that the system can support for
> parallel operations..."
>
> In my interpretation, "the system" means the entire cluster, but the
> max_parallel_workers setting is PGC_USERSET. That's a bit confusing,
> because two different backends can have different settings for "the
> maximum number ... the system can support".
Oops.
I intended it to mean "the entire cluster." Basically, how many
workers out of max_worker_processes are you willing to use for
parallel query, as opposed to other things. I agree that PGC_USERSET
doesn't make any sense.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company