Here's an example of one of Facebook's MySQL tools: http://www.theregister.co.uk/2010/09/21/facebook_online_schema_change_for_mysql/ http://www.theregister.co.u

Here's an example of one of Facebook's MySQL tools: http://www.theregister.co.uk/2010/09/21/facebook_online_schema_change_for_mysql/ http://www.theregister.co.uk/2010/09/21/facebook_online_sche...