eq { hop { filter_eq { all_rows ; name ; justin knox } ; height } ; hop { filter_eq { all_rows ; name ; jamychal green } ; height } } = true
select the rows whose name record fuzzily matches to justin knox . take the height record of this row . select the rows whose name record fuzzily matches to jamychal green . take the height record of this row . the first record fuzzily matches to the second record .