filename: 500
hash function: rt_ab
total buckets:       262143
total tuples:        10020 (3.82%)
used buckets:        8814 (3.36%)
maximum list length: 4
average list length: 1.14
hash cost per tuple: 49 cyc, 99 ns, 10 Mhz on 497 Mhz CPU (INNER)
Count	Length	CT
14	4	0.56%
114	3	3.97%
936	2	22.65%
7750	1	100.00%
253329	0	100.00%