title: Modifying a term in lucene
body: <p>Let’s assume I have an index structured as below</p>
  
  <pre>
      name | species | color
      -----+---------+------
      max  | cat     | grey
      sam  | dog     | brown
      luy  | cat     | white
      ...  | ...     | ...
      ...  | ...     | ...
      poe  | dog     | blond
      joe  | cat     | red
      pam  | dog     | brown
  </pre>
  
  <p>The species and color fields are tokenized, indexed and stored.</p>
  
  <p>Now let’s assume that I want to change the term cat to feline and dog to canine.</p>
  
  <p>From what I have been reading, I would have to delete each Document(row) and re-add it with the new term.
  Since the original cat and dog terms are Indexed, Tokenized and Stored, it seems like there should be a way to update just the terms cat and dog to their new titles.</p>
  
  <p>Is there already a way to do this? Did  I just miss it?</p>