title: want to addd a column in ofMessageArchive table of Monitoring Service plugin of openfire
body: <p>we are developing a real time application for that we are using openfire framework  and for message archiving we had installed monitoring services and open archive it work great and messages archived successfully</p>
  
  <p>but not according to are requirement we want to distinguish between messages from a group 
  so we want to add anather column in ofMessageArchive  but after adding anther column it stops adding messages in that </p>
  
  <p>any idea ?</p>