filename: 500
hash function: crc32_bof
hash seed 0x1c7f1d2d
total buckets:       262147
total tuples:        10020 (3.82%)
used buckets:        9835 (3.75%)
maximum list length: 2
average list length: 1.02
hash cost per tuple: 93 cyc, 187 ns, 5 Mhz on 498 Mhz CPU (INNER)
Count	Length	CT
185	2	3.69%
9650	1	100.00%
252312	0	100.00%