and { only { filter_eq { all_rows ; venue ; griffith stadium } } ; eq { hop { filter_eq { all_rows ; venue ; griffith stadium } ; date } ; october 19 , 1958 } } = true
select the rows whose venue record fuzzily matches to griffith stadium . there is only one such row in the table . the date record of this unqiue row is october 19 , 1958 .