Access fields from the query results

[Leaf-Lin]

The problem

In Elasticsearch, a runtime field may be used to display fields not currently available in the documents.

Details

As can be seen from the example given in https://www.elastic.co/guide/en/elasticsearch/reference/current/runtime-override-values.html

• hits._source.measures.voltage: 4.2
• hits.fields.measures.voltage: 7.14

It would be useful to have the ability to display and filter on this field.

{
  ...
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 1.0296195,
    "hits" : [
      {
        "_index" : "my-index-000001",
        "_id" : "F1BeSXYBg_szTodcYCmk",
        "_score" : 1.0296195,
        "_source" : {
          "@timestamp" : 1516383694000,
          "model_number" : "HG537PU",
          "measures" : {
            "voltage" : 4.2
          }
        },
        "fields" : {
          "measures.voltage" : [
            7.14
          ]
        }
      }
    ]
  }
}