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

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Josh berkus <josh(at)agliodbs(dot)com>
Cc: Peter Geoghegan <pg(at)heroku(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Bruce Momjian <bruce(at)momjian(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Logic behind parallel default? WAS: Rename max_parallel_degree?
Date: 2016-05-31 18:10:40
Message-ID: 21596.1464718240@sss.pgh.pa.us
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Josh berkus <josh(at)agliodbs(dot)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(dot)3qjjhpwsvvx5bau5(at)alap3(dot)anarazel(dot)de

regards, tom lane

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