It's not implemented. Could you please file a bug?
http://code.google.com/p/datanucleus-appengine/issues/list
Thanks,
Max
On Sun, Jan 3, 2010 at 7:16 AM, Wong <lhw...@gmail.com> wrote:
>
> SUBSTRING function for JPA is not working.
>
> entityManager.createQuery("SELECT SUBSTRING(v.name, 1, 3) from Venue
> v") return v.name but NOT the substring.
>
>
> Anyone has any idea?
>
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