postgresql7.1 select to_char(start_date, 'HH24:MI') as start_time, start_date as raw_start_date, to_char(start_date, 'MM/DD/YYYY') as start_date, to_char(end_date, 'HH:MIpm') as end_time, coalesce(a. name, e.name) as name, coalesce(e.description, a.description) as description, recurrence_id, cal_item_types.type as item_type, on_which_calendar as calendar_id from acs_activities a, acs_events e, timespans s, time_intervals t, cal_items, cal_item_types where e.timespan_id = s.timespan_id and s.interval_id = t.interval_id and e.activity_id = a.activity_id and e.event_id = :cal_item_id and cal_items.cal_item_id= :cal_item_id and cal_item_types.item_type_id= cal_items.item_type_id