Re: Release Note Changes

Simon Riggs wrote:
> On Fri, 2007-11-30 at 06:31 +0000, Simon Riggs wrote:
> 
> > I also notice that two performance features have disappeared from the
> > release notes. (Presumably they have been removed from source). Both of
> > them have changes that can be seen by users, so can't see why we would
> > want them removed.
> 
> Wow, just realised 3 of Heikki's performance patches aren't mentioned
> either:
> 
> - CheckpointStartLock removal
> 
> - I/O reduction during recovery
> 
> - Tuning of Visibility code
> 
> I'm not sure what the rationale is for not mentioning these things.
> They're at least as important, if not more so, than mentioning minor
> source code changes.

The source code changes are more _visible_, I think, meaning they often
require programmers to adjust their code.

> If people understand there aren't 13 performance improvements there are
> at *least* 19+ that is a positive message to help people decide to
> upgrade. 

Frankly I think most people expact an X% improvement in every Postgres
release.  I don't see how mentioning 19 vs. 13 items is going to change
the general understanding that you should upgrade to get better
performance.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://postgres.enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +