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Re: 7.5 release notes

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Jeff Davis <jdavis-pgsql(at)empires(dot)org>
Cc: PostgreSQL-documentation <pgsql-docs(at)postgreSQL(dot)org>
Subject: Re: 7.5 release notes
Date: 2004-07-26 00:12:24
Message-ID: 200407260012.i6Q0COr16259@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-docspgsql-hackers
Jeff Davis wrote:
> On Sat, 2004-07-24 at 21:25, Bruce Momjian wrote:
> > I have completed the 7.5 release notes.  You can view them in HTML on
> > the developer web page.  I have marked a few items with question marks
> > that need to be addressed.  I am looking for improvements, even minor
> > ones.  Either send in a patch or committers can modify the file
> > directly.
> 
> I don't understand the following passage:
> 
> "When matching GROUP BY names, prefer local FROM columns first, then
> SELECT aliases, and then outer FROM columns (Tom) 
> 
> This change was made because it is considered more consistent than the
> previous behavior."
> 
> Perhaps it could be more clear? I don't know where else I'd go to find
> more thorough documentation on that subject.

Item removed.  Tom said it was already in 7.4.3.

I made the adjustments below.

---------------------------------------------------------------------------


> 
> Also, I've included a couple typo fixes below.
> 
> Regards,
> 	Jeff Davis
> 
> --- release.html.old    2004-07-25 03:06:28.000000000 -0700
> +++ release.html        2004-07-25 03:10:21.000000000 -0700
> @@ -99,7 +99,6 @@
>       </p><p>      Before this change some queries would not use an
> index if the data
>        types did not exactly match. This improvement makes index usage
> more
>        intuitive and consistent.
> -      match exactly
>       </p></li><li><p>      New buffer replacement strategy that
> improves caching (Jan)
>       </p><p>      Prior releases use a least-recently-used (LRU) cache
> to keep
>        recently referenced pages in the cache. Unfortunately, the cache
> @@ -129,7 +128,7 @@
>        resulting in improved performance. The close relationship between
>        our developers and users reporting problems allows us to make
>        rapid and complex optimizer improvements that would be very
> -      difficult for lose-source companies to emulate.
> +      difficult for closed-source companies to emulate.
>       </p></li><li><p>      Improve btree index performance for
> duplicate keys (Dmitry Tkach, Tom)
>       </p><p>      This improves the way indexes are scanned when many
> duplicate       values exist in the index.
> 
> 
> 

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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