title: Disabling field analyzing by default in elastic search
body: <p>Is it possible to enable indexing of elastic search fields selectively for a type? </p>
  
  <p>Through the mapping settings for a specific index,  one can set the property </p>
  
  <p>{ "index" : "not_analyzed" }</p>
  
  <p>For a specific field. Since my document has too many fields and is likely to change structure in the future, I would need a mapping where fields are not analyzed by default unless specified differently.</p>
  
  <p>Is this possible? </p>