| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Rename max_parallel_degree? |
| Date: | 2016-04-24 18:08:40 |
| Message-ID: | CA+Tgmoag-iewx9R=vY8wWoRrNeqjng+SQehiAs7EeRc5nkQ1Og@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Apr 23, 2016 at 11:58 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> Why is the parallelism variable called "max_parallel_degree"? Is that a
> descriptive name? What does "degree" mean? Why is it not called
> "max_parallel_workers"?
Because "degree of parallelism" is standard terminology, I guess.
Also, consider that we have the related but actually sorta different
GUC max_worker_processes. I think max_parallel_workers to control the
per-query behavior and max_worker_processes to control the global
system behavior would be confusing - those names are very close
together.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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