[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-2220) session.createSQLQuery(sql) translates database type CHAR(n) to Java type char instead of String

[Strong Liu (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Strong Liu resolved HHH-2220.
-----------------------------

    Resolution: Duplicate
      Assignee: Strong Liu

duplicated by HHH-2304

> session.createSQLQuery(sql) translates database type CHAR(n) to Java type char instead of String
> ------------------------------------------------------------------------------------------------
>
>                 Key: HHH-2220
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2220
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: query-sql
>    Affects Versions: 3.2.0.ga
>            Reporter: Regis Pires Magalhaes
>            Assignee: Strong Liu
>
> createSQLQuery() method translates database type CHAR(n) to Java type char instead of String when using setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP).
> That happens when I do not use addScalar(). And that is the only problem that I have found when not filling return types in advance.
> A workaround I have made is to concatenate the projected field with an empty string (''). See example below:
> ...
> query.setResultTransformer(Criteria.ALIAS_TO_ENTITY_MAP);
> String sqlQuery = "select s.name state from state s where s.name='PI' ";
> query = session.createSQLQuery(sqlQuery);
> ...
> result: [{STATE=P}]
> name field is CHAR(2) in database definition (PostgreSQL, HSQLDB and Oracle were tested).
> Note that it works when I concatenate the field used in projection with an empty string:
> ...
> String sqlQuery = "select s.name || '' state from state s where s.name='PI' ";
> ...
> result: [{STATE=PI}]

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