Statistical facet ignores nested documents

[bleskes]

To reproduce, create a mapping:

curl -XPUT "http://localhost:9200/bar/" -d'
{
   "mappings": {
      "foo": {
         "properties": {
            "accounts": {
               "type": "nested"
            }
         }
      }
   }
}'

Index an object:

curl -XPOST "http://localhost:9200/bar/foo" -d'
{
   "accounts": [
      {
         "amount": 1
      }
   ]
}'

And run a search:

curl -XPOST "http://localhost:9200/bar/_search" -d'
{
   "facets": {
      "test": {
         "statistical": {
            "field": "accounts.amount"
         }
      }
   },
   "size":0
}'

This is the output (note that it did find one document, but not stats on it):

{
   "took": 90,
   "timed_out": false,
   "_shards": {
      "total": 5,
      "successful": 5,
      "failed": 0
   },
   "hits": {
      "total": 1,
      "max_score": 1,
      "hits": []
   },
   "facets": {
      "test": {
         "_type": "statistical",
         "count": 0,
         "total": 0,
         "min": "Infinity",
         "max": "-Infinity",
         "mean": 0,
         "sum_of_squares": 0,
         "variance": "NaN",
         "std_deviation": "NaN"
      }
   }
}

[uboness]

you forgot to specify "nested" on the facet:

curl -XPOST "http://localhost:9200/bar/_search" -d'
{
   "facets": {
      "test": {
         "statistical": {
            "field": "accounts.amount"
         },
         "nested" : "accounts"

      }
   },
   "size":0
}'

[bleskes]

@uboness thx. Indeed. For future record - this works too and conforms to the documentation (note the field option of the facet):

curl -XPOST "http://localhost:9200/bar/_search" -d'
{
   "facets": {
      "test": {
         "statistical": {
            "field": "amount"
         },
         "nested": "accounts"
      }
   },
   "size":0
}'