Re: Logic behind parallel default? WAS: Rename max_parallel_degree?

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Josh berkus <josh@agliodbs.com>
Cc: Peter Geoghegan <pg@heroku.com>, Robert Haas <robertmhaas@gmail.com>, Noah Misch <noah@leadboat.com>, David Rowley <david.rowley@2ndquadrant.com>, Amit Kapila <amit.kapila16@gmail.com>, Alvaro Herrera <alvherre@2ndquadrant.com>, Magnus Hagander <magnus@hagander.net>, Bruce Momjian <bruce@momjian.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2016-05-31T18:10:40Z
Lists: pgsql-hackers
Josh berkus <josh@agliodbs.com> writes:
> Is there a thread on how we determined this default of 2?  I can't find
> one under likely search terms.

The 9.6 open-items list cites

https://www.postgresql.org/message-id/flat/20160420174631.3qjjhpwsvvx5bau5@alap3.anarazel.de

			regards, tom lane