tree c148e6f8d9a36d2d6f2f28de8f25c7bac1982476
parent 17e5abf6ca498566d1ef32fc3f9ff7295cc6e674
author Jim Apple <github.public@jbapple.com> 1562923582 -0700
committer Zoltan Ivanfi <zi@cloudera.com> 1562923582 +0200

PARQUET-1609: Specify which xxhash carefully (#143)

The hash function "xxhash" is actually a number of different hash
functions including xxHash, XXH64, XXH32, and XXH3. Additionally,
these hash functions accept "seeds", as most modern hash functions do,
including MurmurHash variants.

This patch specifies that the BloomFilter hash function default is
XXH64 with a seed of 0. It omits the confusing note about the ISA and
different variants of xxHash, since XXH64 is apparently
architecture-independent.