Re: Rename max_parallel_degree? - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Rename max_parallel_degree?
Date
Msg-id CA+Tgmoag-iewx9R=vY8wWoRrNeqjng+SQehiAs7EeRc5nkQ1Og@mail.gmail.com
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In response to Rename max_parallel_degree?  (Bruce Momjian <bruce@momjian.us>)
Responses Re: Rename max_parallel_degree?
List pgsql-hackers
On Sat, Apr 23, 2016 at 11:58 PM, Bruce Momjian <bruce@momjian.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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