Elasticsearch 7 Quick Start Guide

Field collapsing

This allows the search to collapse according to the field values. Choosing the top sorted document per collapse key will result in a collapse. In the following example, the best tweets per user are being retrieved and sorted by the number of likes:

GET /twitter/_search{  "query": {    "match": {      "message": "elasticsearch"    }  },  "collapse": {    "field": "user"  },  "sort": [    "likes"  ],  "from": 10}

In the preceding example, we are collapsing the user field.