loop 3 10000 5 60000 hash_func cityHash64 farmHash64 metroHash64 murmurHash2_32 murmurHash2_64 murmurHash3_32 murmurHash3_64 javaHash hiveHash xxHash32 xxHash64 value toUUID('61f0c404-5cb3-11e7-907b-a6006ad3dba0') toDecimal128(number, 23) generateUUIDv4() table numbers(1000000) numbers_mt(10000000) SELECT count() from {table} where not ignore({hash_func}({value}))