Hi,
The score is not a field of a document but is computed dynamically, you
need to use a script to get it. So replacing `{ "field" : "_score" }` with
`{ "script" : "_doc.score" }` should have the desired effect.
On Fri, Feb 7, 2014 at 2:57 AM, Toan V Luu <[email protected]> wrote:
> Hi all,
>
> Have you ever tried to order the bucket by field _score of documents
> given a query?
>
> I took example from http://blog.qbox.io/elasticsearch-aggregations and
> make the query:
> curl -XPOST "http://localhost:9200/sports/athlete/_search"; -d '{
> "query" : {
> "match" : { "sport" : "baseball" }
> },
>
> "size": 0,
> "aggs": {
> "sport": {
> "terms": {
> "field": "sport",
> "size": 5,
> "order" : { "max_score" : "desc" }
> },
> "aggs" : {
> "max_score" : { "max" : { "field" : "_score" } }
> }
> }
> }
> }'
>
> However in the response i see:
>
> "aggregations": {
> "sport": {
> "buckets": [{
> "key": "baseball",
> "doc_count": 16,
> "max_score": {
> "value": null
> }
> }]
> }
> }
> I know that the 1st document in result list has score 2.098612 for that
> query so why max_score is null in aggregations?
>
> Thanks for your help.
> Toan.
>
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