Re: 9.5 release notes

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: Rajeev rastogi <rajeev(dot)rastogi(at)huawei(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: 9.5 release notes
Date: 2015-08-06 22:39:27
Views: Raw Message | Whole Thread | Download mbox | Resend email
Lists: pgsql-hackers

On Thu, Aug 6, 2015 at 03:32:43PM -0700, Peter Geoghegan wrote:
> On Thu, Aug 6, 2015 at 3:06 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> >> Below performance improvement in the "General Performance" category is missing:
> >>
> >> Reduce btree scan overhead for < and > strategies
> >>
> >> For <, <=, > and >= strategies, mark the first scan key
> >> as already matched if scanning in an appropriate direction.
> >> If index tuple contains no nulls we can skip the first
> >> re-check for each tuple.
> >
> > While this is a nice 9.5 feature, it really is "btree is faster", and
> > users usually don't need to know that, unless the change is massive that
> > they would change their use of the feature.
> I think that Rajeev is entitled to be credited for his work,
> especially as a less experienced contributor.
> Sure, users are not likely to care too much about incremental progress
> like this (however, I would be willing to bet that more users care
> about this item than about existing items like "Make initdb issue a
> warning about placing the data directory at the top of a file system
> mount point"). IMV it is the role of the release notes to document
> what went into a release fairly methodically. I often look at release
> notes to determine what might have gone wrong in a part of the code
> that I'm less familiar with, for example.
> Users mostly only specifically care about one or two big ticket items,
> and in any case are not likely to learn about them from the release
> notes. The release notes seem shorter than previous years, and I don't
> think it's because 9.5 is a smaller release.

I am using the same criteria I have always used. If you would like it
changed, we need to discuss it at a macro level, not for individual
cases where we feel someone didn't get enough _credit_.

And, I will restate this again, the release note are not for _us_, or
for _credit_ --- they are for our general users. If you would like that
changed, you need to make a case for that change.

Bruce Momjian <bruce(at)momjian(dot)us>

+ Everyone has their own god. +

In response to


Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2015-08-06 22:40:46 Re: pgsql: Fix BRIN to use SnapshotAny during summarization
Previous Message Peter Geoghegan 2015-08-06 22:32:43 Re: 9.5 release notes