text: DO
  $DO$
  BEGIN
  
    INSERT INTO proposal_bookings(
      proposal_booking_id, proposal_pk, call_id, created_at, updated_at, status, allocated_time, instrument_id) 
      VALUES (
        1, 1, 1, now(), NOW(), 'DRAFT', 2*24*60*60, 1
      );
  
    -- add propopsal_booking that references a not existing proposal
    INSERT INTO proposal_bookings(
      proposal_booking_id, proposal_pk, call_id, created_at, updated_at, status, allocated_time, instrument_id) 
      VALUES (
        2, 999, 1, now(), NOW(), 'DRAFT', 2*24*60*60, 3
      );
  
  END;
  $DO$
  LANGUAGE plpgsql;
  