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Posted to derby-dev@db.apache.org by Dy...@Sun.COM on 2008/04/23 22:16:33 UTC
Please review my draft for the 10.4 release announcement
-----------------------------------------------------------------------
Subject: Apache Derby 10.4.1.3 released
The Apache Derby project is pleased to announce a new feature release
of Derby, 10.4.1.3.
Apache Derby is a subproject of the Apache DB project.
Derby is a pure Java relational database engine which conforms to the
ANSI SQL and JDBC standards. Derby aims to be easy for developers
and end-users to work with.
Derby 10.4.1.3 can be obtained from the Derby download site:
http://db.apache.org/derby/derby_downloads.html.
Derby 10.4.1.3 introduces the following new capabilities:
* Asynchronous Replication
Allows you to maintain an up to date copy of your (master) database on
a different host(the slave). In the case of crash on the master
database you can perform failover to the copy(slave database) and
continue serving client requests against your database.
* Security
o Shutting down the Network Server now supports user authentication,
and in fact requires credentials when authentication is enabled.
* SQL
o Table Functions. Using table functions and standard SQL, you can pose
sophisticated queries against in-memory collections, flat files, web
resources, non-relational databases, etc.. Table functions also let
you efficiently import data from web feeds, sensor logs, and other
relational databases.
o Unique constraints on nullable columns.
o SQL ROW_NUMBER() window function, (for an empty, inlined window
specification).
o Bracketed comments (/* ... */).
* Performance and Memory Usage
o New buffer manager with better concurrency.
o Statement cache in the client driver.
o Caching of isolation level and current schema in the client
driver.
* Administration
o Java Management Extensions (JMX) for Java DB, allowing
local and remote monitoring and management of running Java DB instances
(embedded or Network Server).
o Continuation prompt. ij adds a short "> " prompt to the next line
after a newline has been entered by the user without ending the
statement with a semicolon.
Regards,
Dyre
------------------------------------------------------------------
Thanks,
--
Dyre Tjeldvoll
Re: Please review my draft for the 10.4 release announcement
Posted by Dyre Tjeldvoll <Dy...@Sun.COM>.
Kathey Marsden wrote:
> Dyre.Tjeldvoll@Sun.COM wrote:
>> -----------------------------------------------------------------------
>>
> I think it would be good to mention that 10.4.1.3 also has many
> bugfixes, including the fix for DERBY-3347 which can cause
> unrecoverable database corruption. All 10.3 users are encouraged to
> upgrade to avoid potential corruption issues.
As you probably have seen by now, I included a paragraph about this in
the announcement.
>
> Alternately we could just send a separate mail to the user list about
> DERBY-3347 after the announcement goes out, which could have more detail
> about how to check tables after upgrade to ensure databases are not
> corrupted.
Perhaps it would be good to do this in any case? I'm not quite sure
about what advice to give. Maybe someone familiar with the issue(s)
could send out something?
Dyre
Re: Please review my draft for the 10.4 release announcement
Posted by Kathey Marsden <km...@sbcglobal.net>.
Dyre.Tjeldvoll@Sun.COM wrote:
> -----------------------------------------------------------------------
>
I think it would be good to mention that 10.4.1.3 also has many
bugfixes, including the fix for DERBY-3347 which can cause
unrecoverable database corruption. All 10.3 users are encouraged to
upgrade to avoid potential corruption issues.
Alternately we could just send a separate mail to the user list about
DERBY-3347 after the announcement goes out, which could have more detail
about how to check tables after upgrade to ensure databases are not
corrupted.
Kathey
Re: Please review my draft for the 10.4 release announcement
Posted by Knut Anders Hatlen <Kn...@Sun.COM>.
Hi Dyre,
The announcement basically looks good. Please see my comments below.
Dyre.Tjeldvoll@Sun.COM writes:
> -----------------------------------------------------------------------
> Subject: Apache Derby 10.4.1.3 released
>
> The Apache Derby project is pleased to announce a new feature release
> of Derby, 10.4.1.3.
>
> Apache Derby is a subproject of the Apache DB project.
> Derby is a pure Java relational database engine which conforms to the
> ANSI SQL and JDBC standards. Derby aims to be easy for developers
It's probably better to say ISO SQL instead of ANSI SQL. Or perhaps
ISO/ANSI SQL. American national standards aren't that interesting
outside the US... ;)
> and end-users to work with.
>
> Derby 10.4.1.3 can be obtained from the Derby download site:
>
> http://db.apache.org/derby/derby_downloads.html.
>
> Derby 10.4.1.3 introduces the following new capabilities:
>
> * Asynchronous Replication
> Allows you to maintain an up to date copy of your (master) database on
> a different host(the slave). In the case of crash on the master
^^^ ^^^
missing space a
> database you can perform failover to the copy(slave database) and
^^^
missing space
> continue serving client requests against your database.
>
> * Security
> o Shutting down the Network Server now supports user authentication,
> and in fact requires credentials when authentication is enabled.
>
> * SQL
> o Table Functions. Using table functions and standard SQL, you can pose
> sophisticated queries against in-memory collections, flat files, web
> resources, non-relational databases, etc.. Table functions also let
> you efficiently import data from web feeds, sensor logs, and other
> relational databases.
>
> o Unique constraints on nullable columns.
>
> o SQL ROW_NUMBER() window function, (for an empty, inlined window
> specification).
>
> o Bracketed comments (/* ... */).
>
> * Performance and Memory Usage
> o New buffer manager with better concurrency.
>
> o Statement cache in the client driver.
>
> o Caching of isolation level and current schema in the client
> driver.
>
> * Administration
> o Java Management Extensions (JMX) for Java DB, allowing
> local and remote monitoring and management of running Java DB instances
> (embedded or Network Server).
I guess you meant Derby...
> o Continuation prompt. ij adds a short "> " prompt to the next line
> after a newline has been entered by the user without ending the
> statement with a semicolon.
>
>
> Regards,
> Dyre
>
> ------------------------------------------------------------------
>
> Thanks,
>
> --
>
> Dyre Tjeldvoll
--
Knut Anders