eq { hop { filter_eq { all_rows ; date ; october 14 } ; attendance } ; hop { filter_eq { all_rows ; date ; october 8 } ; attendance } } = true
select the rows whose date record fuzzily matches to october 14 . take the attendance record of this row . select the rows whose date record fuzzily matches to october 8 . take the attendance record of this row . the first record is equal to the second record .