[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-3424) concat() with param binding fails function on derby

[Steve Ebersole (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Ebersole closed HHH-3424.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 3.4
                   3.2.x

Confirmed by JBoss QA and others.

> concat() with param binding fails function on derby 
> ----------------------------------------------------
>
>                 Key: HHH-3424
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3424
>             Project: Hibernate3
>          Issue Type: Improvement
>          Components: query-criteria, query-hql, query-sql
>         Environment: Derby (although assumed DB2 has same issue)
>            Reporter: Steve Ebersole
>            Assignee: Steve Ebersole
>             Fix For: 3.2.x, 3.3.x, 3.4
>
>
> Derby does not accept queries in which concat is used to attempt to concatenate params.  For example:
> concat( ?, ? ) is illegal because it limits that only strings can be concatenated.  As such, one must use cast() calls around the params:
> concat( cast( ? as varchar(xyz) ), cast ( ? as varchar(xyz) ) )
> Note however, that this limits what can be bound to these params a bit when those queries run against derby/db2...

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