From: | 'Bruce Momjian' <bruce(at)momjian(dot)us> |
---|---|
To: | Amit Kapila <amit(dot)kapila(at)huawei(dot)com> |
Cc: | 'PostgreSQL-development' <pgsql-hackers(at)postgreSQL(dot)org> |
Subject: | Re: 9.3 Beta1 status report |
Date: | 2013-05-16 13:47:21 |
Message-ID: | 20130516134721.GB16506@momjian.us |
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Lists: | pgsql-hackers |
On Tue, May 7, 2013 at 10:23:48AM +0530, Amit Kapila wrote:
> > > 2. I am not able to figure out which item of release notes cover the
> > below
> > > feature commit
> > > Avoid inserting Result nodes that only compute identity projections.
> > > http://www.postgresql.org/message-id/E1UGCBh-0006P3-
> > A0(at)gemulon(dot)postgresql(dot)org
> >
> > I did not think that warranted a mention in the release notes. Was I
> > wrong?
>
> This was a performance improvement for a quite usable scenario, so I thought
> it would be useful for users to know about it.
> Performance data for simple cases I have posted:
> http://www.postgresql.org/message-id/007e01ce08ff$dc0a2c60$941e8520$@kapila@
> huawei.com
I usually mention items that have a user-visible change, or are easy to
explain, or apply to most queries. I am not sure this falls into any of
those categories.
Can you suggest some release note text for this item?
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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