Re: Rename max_parallel_degree?

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Josh Berkus <josh@agliodbs.com>, "David G. Johnston" <david.g.johnston@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>, Peter Geoghegan <pg@heroku.com>, Noah Misch <noah@leadboat.com>, David Rowley <david.rowley@2ndquadrant.com>, Alvaro Herrera <alvherre@2ndquadrant.com>, Magnus Hagander <magnus@hagander.net>, Bruce Momjian <bruce@momjian.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2016-06-08T14:29:10Z
Lists: pgsql-hackers
On Wed, Jun 8, 2016 at 10:18 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> Note that there is a dump/restore hazard if people have set the
>>> parallel_degree reloption on a beta1 install, or used ALTER { USER |
>>> DATABASE } .. SET parallel_degree.  Can everybody live with that?
>>> Should I bump catversion when applying this?
>
>> IMHO, we just need to call it out in the beta2 announcement.
>
> catversion is not relevant to GUC changes.  It's not really necessary,
> because you'd get a clean, easily diagnosed and repaired failure during
> postmaster startup anyway.  The point of bumping catversion is to prevent
> a postmaster starting when the incompatibility is subtler or harder to
> debug than that.

The reloption is also getting renamed here.

-- 
Robert Haas
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