--
-- wf_callback__time_sysdate_plus_x/3
--
create or replace function wf_callback__time_sysdate_plus_x(
  integer,
  character varying,
  text
) returns timestamptz as $$

declare
  time_sysdate_plus_x__case_id          alias for $1;  
  time_sysdate_plus_x__transition_key   alias for $2;  
  time_sysdate_plus_x__custom_arg       alias for $3;  
begin
        return now() + (time_sysdate_plus_x__custom_arg || ' days')::interval;
     
end;$$ language plpgsql;