/**
  * (non-PHPdoc)
  * @see CRM_Extendedreport_Form_Report_Advancedfundraising::getAvailableJoins()
  */
 function getAvailableJoins()
 {
     return parent::getAvailableJoins() + array('compile_key_stats' => array('callback' => 'compileKeyStats'));
 }