POST /test/_search
{
  "query": {
    "nested": {
      "path": "comments",
      "query": {
        "match": { "comments.text": "words" }
      },
      "inner_hits": {
        "_source": false,
        "docvalue_fields": [
          "comments.text.keyword"
        ]
      }
    }
  }
}
