title: Using missing and exists filter together in single query
body: <p>I am trying to get a query which can return a json which satisfies both conditions of a filtering. I am trying to get a response which has feed containing one field named "test1" and it should also be missing a field "test2", Ive tried the query </p>
  
  <pre><code>{
   "query": {
    "filtered": {
    "query": {
      "match_all": {}
     },
        "filter": {
           "missing": {
          "field": "test2"
         },
         "exists": {
           "field": "test1"
         }
        }
      }
    } 
  }
  </code></pre>
  
  <p>The above query returns all the fields which has the field "test1" and it also returns feeds which are missing field "test2", I am trying to narrow down the response as I only want feeds satisfying both conditions.</p>