title: how set start value for auto increment in grails
body: <p>I am using my custom auto increment key in my domain class  using</p>
  
  <pre><code> static mapping = { id generator: 'increment', name: 'personId' }
  </code></pre>
  
  <p>Is it possible to start the auto increment from a particular value , say start from 100 ?</p>