How to use copy_to on a nested field

Question

Is it possible to use copy_to in a nested field :

Here is an extract of my mapping :

day: {
    type: nested
    properties: {
        weight: {
            index_name: bzixtz2fng.day.weight
            type: double
        }
        value: {
            index_name: bzixtz2fng.day.value
            type: string
            copy_to: [
                raw_words
                back
            ]
        }
    } 
}

Why I don't find my doc when I search on back

{
  "query": {
    "term": {
      "back": "one"
    }
  }
}

PS : Version 1.0.1

Answer 1

It was an issue #6701 on elasticsearch, fix in v1.4.0.

Answer 2

I think you need to use the nested query or filter to wrap your term query as explained here: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-nested-query.html.

Something like this should work:

{
    "nested": {
        "path": "obj1",
        "score_mode": "avg",
        "query": {
            "nested": {
                "term": {
                    "obj1.back": "one"
                }
            }
        }
    }
}

If that doesn't help, please provide the mapping returned from /_mapping.