Thanks Andrus—the workaround works fine :)

Cheers,
- hugi



> On 9. nóv. 2015, at 11:25, Andrus Adamchik <and...@objectstyle.org> wrote:
> 
> It's a bug in Cayenne. I just opened a Jira: 
> https://issues.apache.org/jira/browse/CAY-2037 . While we are working on 
> fixing it, there's a woraround described in Jira - if possible use a unique 
> attribute of the target object inside COUNT. E.g. a.shop.name (if no such 
> attribute exists, map ID as an ObjAttribute, and use that).
> 
> Andrus
> 
>> On Oct 30, 2015, at 2:45 PM, Hugi Thordarson <h...@karlmenn.is> wrote:
>> 
>> Hi all, and a very happy Friday to you.
>> 
>> How would I go about counting distinct related objects using EJBQL? If I 
>> want to count the number of “Shops" related to “Receipts", I’d expect to be 
>> able to do use EJBQL like this, which works fine for regular attributes:
>> 
>> SELECT count(distinct a.shop) FROM Receipt a
>> 
>> However, this generates the incorrect SQL
>> 
>> SELECT COUNT(DISTINCT *) AS sc0 FROM smu.fd_receipt t0 INNER JOIN 
>> smu.fd_shop t1 ON (t0.shop_id = t1.id)
>> 
>> Any ideas? I’m using the 4.0M3-SNAPSHOT release.
>> 
>> Cheers,
>> - hugi
> 

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