title: Set update_all_types to true on ElasticSearch
body: <p>I want to add some additional properties to my mappings, in this specific case I want to modify a title field in my English index so that it would use the english analyzer.</p>
  
  <p>Should be pretty straightforward, except that I have a title field in quite some types, and it seems to be not possible to do this. </p>
  
  <p>The error I have is the following : Set update_all_types to true to update [search_quote_analyzer] across all types.]</p>
  
  <p>But I am not able to find a single reference on how or where to set this 'update_all_types' parameter. </p>
  
  <p>This is the very simple code I use in Sense :</p>
  
  <pre><code>PUT /my_index/_mapping/my_type
      {
        "properties": {
          "title": {
            "type": "string",
            "analyzer": "english"
          }
        }
      }
  </code></pre>
  
  <p>So, how can I make this work if the same field is used in other types ?</p>
  
  <p>This is the error message :</p>
  
  <pre><code>"type": "illegal_argument_exception",
  "reason": "Mapper for [title] conflicts with existing mapping in other types:
    [mapper [title] has different [analyzer], mapper [title] is used by
    multiple types. Set update_all_types to true to update [search_analyzer]
    across all types., mapper [title] is used by multiple types. Set
    update_all_types to true to update [search_quote_analyzer] across
    all types.]"
  </code></pre>
  
  <p>So it seems I need to set 'update_all_types:true' somewhere, but the documentation fails on that part.</p>