True, I haven't looked at it closely. Not sure where it is in the
priority list though.

However, I would recommend you _really_ look at _why_  you
think you need cross-collection joins. Likely they will be expensive,
and whether they're performant in your situation will be a question.

If at all possible, Solr is much happier/more flexible if you can
denormalize your data and live with the fact that your index
will be bigger.

Best,
Erick

On Sun, Aug 16, 2015 at 12:59 PM, naga sharathrayapati
<sharathrayap...@gmail.com> wrote:
> https://issues.apache.org/jira/browse/SOLR-7090
>
> I see this jira open in support of joins which might solve the problem.
>
> On Sun, Aug 16, 2015 at 2:51 PM, Erick Erickson <erickerick...@gmail.com>
> wrote:
>
>> bq: Is there any chance of this feature(merge the results to create a
>> composite
>> document) coming out in the next release 5.3
>>
>> In a word "no". And there aren't really any long-range plans either that
>> I'm
>> aware of.
>>
>> You could also explore streaming aggregation, if the need here is more
>> batch-oriented.
>>
>> If at all possible, Solr is much more flexible if you can de-normlize your
>> data
>> rather than try to make Solr work like an RDBMS. Of course it goes against
>> the training of all DB Admins, but it's often the best option.
>>
>> So have you explored denormalizing and do you know it's not a viable
>> option?
>>
>> Best,
>> Erick
>>
>> On Sun, Aug 16, 2015 at 12:45 PM, naga sharathrayapati
>> <sharathrayap...@gmail.com> wrote:
>> > Is there any chance of this feature(merge the results to create a
>> composite
>> > document) coming out in the next release 5.3 ?
>> >
>> > On Sun, Aug 16, 2015 at 2:08 PM, Upayavira <u...@odoko.co.uk> wrote:
>> >
>> >> You can do what are called "pseudo joins", which are eqivalent to a
>> >> nested query in SQL. You get back data from one core, based upon
>> >> criteria in the other. You cannot (yet) merge the results to create a
>> >> composite document.
>> >>
>> >> Upayavira
>> >>
>> >> On Sun, Aug 16, 2015, at 06:02 PM, Nagasharath wrote:
>> >> > I exactly have the same requirement
>> >> >
>> >> >
>> >> >
>> >> > > On 13-Aug-2015, at 2:12 pm, Kiran Sai Veerubhotla <
>> sai.sq...@gmail.com>
>> >> wrote:
>> >> > >
>> >> > > does solr support joins?
>> >> > >
>> >> > > we have a use case where two collections have to be joined and the
>> >> join has
>> >> > > to be on the faceted results of the two collections. is this
>> possible?
>> >>
>>

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