query: SELECT count(DISTINCT driverId) FROM results WHERE raceId NOT IN( SELECT raceId FROM races WHERE YEAR != 2009 )
question: How many driver never participated race held 2009?
query_toks: SELECT count ( DISTINCT driverId ) FROM results WHERE raceId NOT IN ( SELECT raceId FROM races WHERE YEAR ! = 2009 )
query_toks_no_value: select count ( distinct driverid ) from results where raceid not in ( select raceid from races where year ! = value )
question_toks: How many driver never participated race held 2009?