text: 
  create or replace function rhn_errata_buglist_mod_trig_fun() returns trigger as
  $$
  begin
          new.modified := current_timestamp;
  
          return new;
  end;
  $$ language plpgsql;
  
  create trigger
  rhn_errata_buglist_mod_trig
  before insert or update on rhnErrataBuglist
  for each row
  execute procedure rhn_errata_buglist_mod_trig_fun();
  
  