title: Elasticsearch Filtered query vs Filter
body: <p>Is there any difference between "query and filter in filtered" and "query and filter on the root"? for example</p>
  
  <p>Case 1:</p>
  
  <pre class="lang-js prettyprint-override"><code>{
    "query":{
      "filtered":{
        "query":{
          "term":{"title":"kitchen3"}
        },
        "filter":{
          "term":{"price":1000}
        }
      }
    }
  }
  </code></pre>
  
  <p>Case 2:</p>
  
  <pre class="lang-json prettyprint-override"><code>{
    "query":{
      "term":{"title":"kitchen3"}
    },
    "filter":{
      "term":{"price":1000}
    }
  }
  </code></pre>
  
  <p>I found this discussion <a href="http://elasticsearch-users.115913.n3.nabble.com/Filtered-query-vs-using-filter-outside-td3960119.html">http://elasticsearch-users.115913.n3.nabble.com/Filtered-query-vs-using-filter-outside-td3960119.html</a>, but referenced URL is 404 and the explanation is a bit too concise for me.</p>
  
  <p>Please teach or give any document which is pointing the difference between these, thank you. </p>