title: How to hash auto increments in mysql
body: <p>Is there a way to make mysql hash the auto increment values for its tables? 
  For example with md5?</p>
  
  <pre>
      id - name
      1  - New York  
      2  - Chicago   
      3  - Sydney    
      4  - Berlin    
  </pre>
  
  <p>what I'm trying to get</p>
  
  <pre>
      id - name 
      c4ca4238a0b923820dcc509a6f75849b - New York  
      c81e728d9d4c2f636f067f89cc14862c - Chicago   
      eccbc87e4b5ce2fe28308fd9f2a7baf3 - Sydney    
      a87ff679a2f3e71d9181a67b7542122c - Berlin    
  </pre>
  
  <p>Thanks in advance</p>
  
  <p>EDIT:</p>
  
  <p>I think I need to clarify the question a little more, what im trying to do is not Call the ID's but Insert them. In the moment the ID column is an int field which I will change to varchar.</p>
  
  <p>I want to save the identifiers as Hashed in the DB not call them with mysql SELECT. Thanks</p>