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Select count(*) as total_seats, count(bp.seat_no) as occupied_seats from flights f join seats s on f.aircraft_code = s.aircraft_code left join boarding_passes bp on s.seat_no = bp.seat_no and bp.flight_id = f.flight_id where f.flight_id = '30625' ; select * from query_cost('Select count(*) as total_seats, count(bp.seat_no) as occupied_seats from flights f join seats s on f.aircraft_code = s.aircraft_code left join boarding_passes bp on s.seat_no = bp.seat_no and bp.flight_id = f.flight_id where f.flight_id = ''30625''');

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