title: How search by all fields in ElasticSearch 6.2?
body: <p>I send the request:</p>
  
  <pre><code>POST http://localhost:9200/mydatabase/users/_search
  </code></pre>
  
  <p>with body:</p>
  
  <pre><code>{
      "query": {
          "fuzzy" : {
              "role" : {
                  "value": "admn",
                  "boost": 1.0,
                  "fuzziness": 1,
                  "prefix_length": 0,
                  "max_expansions": 100
              }
          }
      }
  }
  </code></pre>
  
  <p>And I get this responsse:</p>
  
  <pre><code> "hits": [
              {
                  "_index": "mydatabase",
                  "_type": "users",
                  "_id": "mKstz2IBuOClWUbC0-1v",
                  "_score": 0.5198604,
                  "_source": {
                      "user": "Сорокин Роман",
                      "description": "Данному пользователю предоствлена админка",
                      "role": "Admin"
                  }
              }
          ]
  </code></pre>
  
  <p>How to write a query if I want get search by all fields, not only field "role" and use fuzzy?</p>
  
  <p>Сan I write a query without configuring the mapping?</p>