title: Exact (not substring) matching in Elasticsearch
body: <p><code>{"query":{
      "match" : {
          "content" : "2"
      }
  }}</code> matches all the documents whole content contains the number 2, however I would like the content to be exactly 2, no more no less - think of my requirement in a spirit of Java's String.equals.</p>
  
  <p>Similarly for the second query I would like to match when the document's content is exactly '3 3' and nothing more or less. <code>{"query":{
      "match" : {
          "content" : "3 3"
      }
  }}</code></p>
  
  <p>How could I do exact (String.equals) matching in Elasticsearch?</p>