title: Multi field text and keyword fields in elasticsearch
body: <p>I'm looking into switching from solr to elasticsearch and have indexed a bunch of documents into it without providing a schema/mapping and a lot of the fields that i would have previously set as indexed strings in solr have been set as both <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/text.html" rel="nofollow noreferrer">text</a> and <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/keyword.html" rel="nofollow noreferrer">keyword</a> fields using <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/multi-fields.html" rel="nofollow noreferrer">multi-fields</a>.</p>
  
  <p>Is there any benifit to having a <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/keyword.html" rel="nofollow noreferrer">keyword</a> field also as a <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/text.html" rel="nofollow noreferrer">text</a> field using <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/multi-fields.html" rel="nofollow noreferrer">multi-fields</a>? in my case most values in fields are single words so i'd imagine it wouldn't matter if they are sent to the analyzer but the es docs seem to imply that <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/keyword.html" rel="nofollow noreferrer">keyword</a> fields are not considered when searching or at least treated differently?</p>
  
  <p>Just to expand on that a little further if i search for the term "ipad" would a document score higher if it had "ipad" in a keyword field as well as some other text field vs the same document without the keyword field? and if say "ipad" was only in a keyword field would the document still match?</p>