The problem I've always had is that I don't quite know what
"sorting on multivalued fields" means. If your field had tokens
aaaaa and zzzzz, would sorting on that field put the doc
at the beginning or end of the list? Sure, you can define
rules (first token, last token, average of all tokens (whatever
that means)), but each solution would be wrong sometime,
somewhere, and/or completely useless.

I'd love to have a better answer....

Best
Erick

On Fri, Aug 12, 2011 at 11:32 AM, Martijn v Groningen
<martijn.is.h...@gmail.com> wrote:
> Hi Johnny,
>
> Sorting on a multivalued field has never really worked in Solr.
> Solr versions <= 1.4.1 allowed it, but there was a change that an error
> occurred and that the sorting might not be what you expect.
> From Solr 3.1 and up sorting on a multivalued isn't allowed and a http 400
> is returned.
>
> Duplicating documents or fields (what Peter describes) is as far as I know
> they only option until Lucene supports sorting on multivalued fields
> properly.
>
> Martijn
>
> 2011/8/12 Péter Király <kirun...@gmail.com>
>
>> Hi,
>>
>> There is no direct solution, you have to create single value field(s)
>> to create search. I am aware of two workarounds:
>>
>> - you can use a random or a given (e.g. the first) instance of the
>> multiple values of the field, and that would be your sortable field.
>> - you can create two sortable fields: nnnn_min and nnnn_max, which
>> contains the minimal and maximal values of the given field values.
>>
>> At least, that's what I do. Probably there are other solutions as well.
>>
>> Péter
>> --
>> eXtensible Catalog
>> http://drupal.org/project/xc
>>
>>
>> 2011/8/12 johnnyisrael <johnnyi.john...@gmail.com>:
>> > Hi,
>> >
>> > I am currently using SOLR 1.4.1, With this version sorting working fine
>> even
>> > in multivalued field.
>> >
>> > Now I am planning to upgrade my SOLR version from 1.4.1 --> 3.3.0, In
>> this
>> > latest version sorting is not working on multivauled field.
>> >
>> > So I am in unable to upgrade my SOLR due to this drawback.
>> >
>> > Is there a work around available to fix this problem?
>> >
>> > Thanks,
>> >
>> > Johnny
>> >
>> > --
>> > View this message in context:
>> http://lucene.472066.n3.nabble.com/SOLR-3-3-0-multivalued-field-sort-problem-tp3248778p3248778.html
>> > Sent from the Solr - User mailing list archive at Nabble.com.
>> >
>>
>
>
>
> --
> Met vriendelijke groet,
>
> Martijn van Groningen
>

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