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From "Michael Dick (JIRA)" <>
Subject [jira] Updated: (OPENJPA-455) Incorrect MySQL DDL Generation for integer types
Date Wed, 28 Nov 2007 21:02:21 GMT


Michael Dick updated OPENJPA-455:

    Attachment: OPENJPA-455.patch.txt

Attaching potential patch. I'll commit this when I've had a chance to do a little more testing.

> Incorrect MySQL DDL Generation for integer types
> ------------------------------------------------
>                 Key: OPENJPA-455
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 1.0.0, 1.0.1
>            Reporter: Michael Dick
>         Attachments: OPENJPA-455.patch.txt
> Opening a JIRA report on Tim's behalf. 
> I turned the schema tool loose on a MySQL production database this
> afternoon and it failed. The essence of the problem appears that DDL was
> being generated with a type declaration of this form:
> int unsigned(10)
> In MySQL, the proper form is:
> int(10) unsigned
> viz:
> ALTER TABLE fubar MODIFY col1 int(10) unsigned;
> Checking other options indicates that similar constructs such as CREATE
> TABLE are likewise defective.
> I looked at the svn trunk head source code in
> and the parent class
> The offending method appears to be:
> 1508:     public String getTypeName(Column col)
> This method has no override in MySQLDictionary, but apparently needs
> one. I think it's a minor mod, but I'm not currently set up to build and
> test in the environment where the offending database exists.
> This is a SEVERE error. It causes generation of defective SQL for
> SQL-generating options and causes live updates to schemas to fail.
> I don't have a Jira login at present, so if someone could log this, it
> would be appreciated.
>   Thanks,
>    Tim Holloway

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