+my $join = FS::cust_event->join_sql() .
+ 'LEFT JOIN cust_location bill_location '.
+ 'ON (cust_main.bill_locationnum = bill_location.locationnum) '.
+ 'LEFT JOIN cust_location ship_location '.
+ 'ON (cust_main.ship_locationnum = ship_location.locationnum)';
+ # warning: does not show the true service address for package events.
+ # the query to do that would be painfully slow.