Could you inject an UpdateRequestProcesssor into the processing chain? Then
you could copy the field to a sort specific field and choose only one
value. And use docValues for faster sort too.

Regards,
     Alex
On 9 Feb 2015 4:33 am, "Flavio Pompermaier" <pomperma...@okkam.it> wrote:

> In my use case it could be very helpful because I use the SIREn plugin to
> index arbitrary JSON-LD and this plugin automatically index also all nested
> attributes as a Solr field.
> Thus I need for example to gather all entries with a certain value of the
> "type" attribute, ordered by "name" (but name could be a multivalued
> attribute in my use case :( )
> I'd like to avoid to switch to Elasticsearch just to have this single
> feature.
>
> Thanks for the support,
> Flavio
>
> On Mon, Feb 9, 2015 at 10:02 AM, Anshum Gupta <ans...@anshumgupta.net>
> wrote:
>
> > Sure, that's correct and makes sense in some use cases. I'll need to
> check
> > if Solr functions support such a thing.
> >
> > On Mon, Feb 9, 2015 at 12:47 AM, Flavio Pompermaier <
> pomperma...@okkam.it>
> > wrote:
> >
> > > I saw that this is possible in Lucene (
> > > https://issues.apache.org/jira/browse/LUCENE-5454) and also in
> > > Elasticsearch. Or am I wrong?
> > >
> > > On Mon, Feb 9, 2015 at 9:05 AM, Anshum Gupta <ans...@anshumgupta.net>
> > > wrote:
> > >
> > > > Unless I'm missing something here, sorting on a multi-valued field
> > would
> > > be
> > > > non-deterministic in nature.
> > > >
> > > > On Sun, Feb 8, 2015 at 11:59 PM, Flavio Pompermaier <
> > > pomperma...@okkam.it>
> > > > wrote:
> > > >
> > > > > Hi to all,
> > > > >
> > > > > Is there any possibility that in the near future Solr could support
> > > > sorting
> > > > > on multivalued fields?
> > > > >
> > > > > Best,
> > > > > Flavio
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Anshum Gupta
> > > > http://about.me/anshumgupta
> > > >
> > >
> >
> >
> >
> > --
> > Anshum Gupta
> > http://about.me/anshumgupta
> >
>

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