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From "Michael Dick (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1530) MySQL storage engine support
Date Fri, 05 Mar 2010 02:59:27 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841672#action_12841672
] 

Michael Dick commented on OPENJPA-1530:
---------------------------------------

I agree with Milosz & Jeremy - the engine variable should be moved to MySQLDictionary.


If we do add a testcase I'd rather have it only run on MySQL instead of excluding it entirely
(we'll forget about it if it's excluded). We'd just need to set the engine property to ndbcluster
and verify that we can create a table.  



> MySQL storage engine support
> ----------------------------
>
>                 Key: OPENJPA-1530
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1530
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: jdbc
>            Reporter: Craig L Russell
>            Assignee: Craig L Russell
>            Priority: Minor
>             Fix For: 1.3.0, 2.0.0
>
>         Attachments: openjpa-1530.patch
>
>
> The MySQLDictionary currently supports only TYPE innodb. There is a skeleton for support
of this element but there is no way to change it from the default.
> Also, according to the MySQL documentation http://dev.mysql.com/doc/refman/5.1/en/create-table.html
 TYPE is deprecated. The recommended (and supported) keyword is ENGINE. 
> "Since MySQL 5.1.8, it produces a warning. It will be removed in a future MySQL release.
You should not use TYPE in any new applications, and you should immediately begin conversion
of existing applications to use ENGINE instead."
> I propose to change TYPE to ENGINE, and to provide a way for the user to specify which
engine to use.
> I need some feedback on this: A property, mysql.engine, with a default of innodb (for
compatibility) can be specified by the user in order to create tables using any of the supported
engines. Can the property be put onto the command line? Can the property be added to persistence.xml?
Can the property be added to the maven profile properties?

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