elasticsearch - Filtering Elaticsearch query on existence of a nested field -

i'm trying write elasticsearch query return elements have nested field. however, i'm apparently having deal of difficulty it. mapping field looks follows:

{ "mytype": { "properties": { "hello": { "type": "nested", "properties": { "foo": {"type": "string", "index": "not_analyzed"}, "bar": {"type": "string", "index": "not_analyzed"}, } } } } }

my query follows: { "query": { "filtered": { "filter": { "exists": { "field": "hello.foo" } } } } }

this query returns 0 matching documents though know there matching documents.

i tried use exists query inside nested query, given error message nested queries not supporting exists query.

i'm testing against elasticsearch 2.3 appreciated!

i hope help

{   "query": {     "bool": {       "must": [         {           "nested": {             "path": "hello",             "filter": {               "term": {       // replace term "match" in case of fulltext                  "hello.foo": "value searched"               }             }           }         }       ]     }   },   "from": 0,   "size": 50 }