[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2304) Wrong type detection for sql type char(x) columns

[Julien Kronegg (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33726#action_33726 ] 

Julien Kronegg commented on HHH-2304:
-------------------------------------

A cleaner workaround is to define a new Dialect:

    public class DialectHhh2304 extends DB2390Dialect {
        public DialectHhh2304() {
            super();
            // workaround for http://opensource.atlassian.com/projects/hibernate/browse/HHH-2304
            registerHibernateType( Types.CHAR,1, Hibernate.CHARACTER.getName() );
            registerHibernateType( Types.CHAR,255, Hibernate.STRING.getName() ); 
        }
    }

Then to use instead of the original dialect (e.g. in the persistence.xml file).

I think defining a new dialect is safer than using "char(xxx as char)" (I did not test it BTW).

> Wrong type detection for sql type char(x) columns
> -------------------------------------------------
>
>                 Key: HHH-2304
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2304
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.0.ga
>         Environment: Hibernate 3.2.0, Oracle 9.2, Oracle JDBC driver 10.2
>            Reporter: Markus Heiden
>         Attachments: hibernate.zip
>
>
> When executing a sql query which returns columns of sql type char(x), a java.lang.Character is returned. This leads to returning just the first character of the value. In my eyes a String should be returned when the char(x) type has a width > 1. I wasn't able to determine whether this is a jdbc driver issue or a hibernate issue. When using sql type char(x) for columns of entities no such problems occur.
> Test case is attached.

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