--
-- acs_event__get_status_summary/1
--
create or replace function acs_event__get_status_summary(
  integer
) returns bool as $$

declare
       get_status_summary__event_id    alias for $1; -- acs_events.event_id%TYPE 
       v_status_summary		acs_events.status_summary%TYPE; 
begin
       select coalesce(e.status_summary, a.status_summary) into v_status_summary
       from  acs_events e
       left join acs_activities a
       on (e.activity_id = a.activity_id)
       where e.event_id = get_status_summary__event_id;

       return v_status_summary;

end;$$ language plpgsql;