less { hop { filter_eq { all_rows ; skip ; xu xiaoming } ; season } ; hop { filter_eq { all_rows ; skip ; wang fengchun } ; season } } = true
select the rows whose skip record fuzzily matches to xu xiaoming . take the season record of this row . select the rows whose skip record fuzzily matches to wang fengchun . take the season record of this row . the first record is less than the second record .