Обсуждение: Postgres 9.0alpha4?

I was surprised this morning to see that there is new alpha available
for download:

http://www.postgresql.org/ftp/source/9.0alpha4/

Really nice! :)

    Mike

On 2/24/10 9:46 AM, IP wrote:
>
> Was there any communication related to this release? I can't see it
> neither in
> Feature Matrix nor in any other place except
> http://developer.postgresql.org/pgdocs/postgres/release-9-0.html.
> What's the relationship between 8.5alpha3 and 9.0alpha4? What have
> happened to earlier alphas of 9.0?

Oh, the feature matrix.  Good point.

Otherwise, it's here: http://www.postgresql.org/about/news.1183

--Josh Berkus

Lou Picciano wrote:
>
> The revision of the major version number is a bit misleading; per
> previous renumbering conventions (dare I say conventions?), the v9
> family change would have suggested a major architectural difference.
>  IE, that an initdb would be required...

There are major architectural differences internally and externally--the
streaming replication implementation being the main one prompting the
major version number bump, removal of the old way of doing VACUUM FULL
is one of the big internal ones--and an initdb is required.

--
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com   www.2ndQuadrant.us

On 2/24/10 12:18 PM, Lou Picciano wrote:
> Thanks, Josh, for the notes - these are helpful.  I'm inferring from
> them that a new instance build - from an 8.4-alpha - won't be necessary
> for this one?

Actually, we generally don't bother to make the catalog versions
compatible for alphas; we assume that people are going to re-initdb on a
new build.

> The revision of the major version number is a bit misleading; per
> previous renumbering conventions (dare I say conventions?), the v9
> family change would have suggested a major architectural difference.
>  IE, that an initdb would be required...

That's one reason.  The other reason is major feature changes which will
change the deployment of PostgreSQL, especially when those features can
be assumed to be not-quite-entirely-stable in the first release.  "9.0"
says "New replication technology, may have bugs, use extra testing".

> PS - Really looking forward to the replication features.  Already have
> the SSL build in place.

Yaaay. I look forward to you testing replication over SSL connections.

--Josh Berkus