title: Is there a way to update all documents by query in Elasticsearch 1.5?
body: <p>We made some mistake to put one of the field with accent. So, the field contains <code>é</code> and we would like to update that to <code>e</code>. </p>
  
  <p>We're using Elasticsearch 1.5. Is there a query we can run to update all the documents in one go or do I need to query all the documents and update them all using Elasticsearch lib?</p>
  
  <p>We're using node.js </p>