| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: 9.5 release notes |
| Date: | 2015-06-13 01:47:29 |
| Message-ID: | 20150613014729.GA29422@momjian.us |
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| Lists: | pgsql-hackers |
On Thu, Jun 11, 2015 at 01:27:23PM -0400, Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > On Thu, Jun 11, 2015 at 05:16:07PM +1200, David Rowley wrote:
> >> Would you also be able to mention something aboutf15821e andd222585 ?
>
> > I am going to defer to Tom on that. I have added optimizer changes in
> > the past but he didn't feel it made sense unless there was some
> > user-visible change.
>
> I'd be inclined to document both of those. We mentioned outer join
> removal when it was first added, in 9.0, so making a significant
> improvement in it seems worthy of mention also. Both of these things
> are "user visible" to the extent that they affect EXPLAIN output.
>
> I'm not sure whether we need to document the semantic hazard that the
> second commit message worries about.
OK, I have added two items; applied patch attached.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
| Attachment | Content-Type | Size |
|---|---|---|
| optimizer.diff | text/x-diff | 847 bytes |
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