Created
July 26, 2018 13:14
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ou can use a top_hits aggregation that groups on the country field, returns 1 doc per group, and orders the docs by the collected date descending: https://stackoverflow.com/questions/29016271/how-to-get-latest-values-for-each-group-with-an-elasticsearch-query
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| POST /test/_search?search_type=count | |
| { | |
| "aggs": { | |
| "group": { | |
| "terms": { | |
| "field": "country" | |
| }, | |
| "aggs": { | |
| "group_docs": { | |
| "top_hits": { | |
| "size": 1, | |
| "sort": [ | |
| { | |
| "collected": { | |
| "order": "desc" | |
| } | |
| } | |
| ] | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } |
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