SELECT date ,  zip_code FROM weather WHERE min_dew_point_f  <  (SELECT min(min_dew_point_f) FROM weather WHERE zip_code  =  94107)
On which day and in which zip code was the min dew point lower than any day in zip code 94107?
SELECT date , zip_code FROM weather WHERE min_dew_point_f < ( SELECT min ( min_dew_point_f ) FROM weather WHERE zip_code = 94107 )
select date , zip_code from weather where min_dew_point_f < ( select min ( min_dew_point_f ) from weather where zip_code = value )
On which day and in which zip code was the min dew point lower than any day in zip code 94107 ?