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Ritchie updated ARROW-10554: ---------------------------- Description: THis isn't a major issue/ or even one at all. I was wondering how guys are looking towards using a non-cryptographic hash function (aHash seems to be very fast) as default for Schema (and maybe other locations in crate). Arrow currently defaults to the default HashMap and HashSet. This uses a cryptographic hasher, which I believe isn't needed most of the time. This extra security has quite some performance overhead. was: THis isn't a major issue/ or even one at all. I was wondering how guys are looking towards using a non-cryptographic hash function (as SeaHash or Fnv) as default for Schema (and maybe other locations in crate). Arrow currently defaults to the default HashMap and HashSet. This uses a cryptographic hasher to guard you against DOS-attacks, which I believe isn't needed most of the time. This extra security has some performance overhead. > [Rust] Default to non-cryptographic hash function? > -------------------------------------------------- > > Key: ARROW-10554 > URL: https://issues.apache.org/jira/browse/ARROW-10554 > Project: Apache Arrow > Issue Type: Wish > Reporter: Ritchie > Priority: Minor > > THis isn't a major issue/ or even one at all. > I was wondering how guys are looking towards using a non-cryptographic hash > function (aHash seems to be very fast) as default for Schema (and maybe other > locations in crate). > Arrow currently defaults to the default HashMap and HashSet. This uses a > cryptographic hasher, which I believe isn't needed most of the time. This > extra security has quite some performance overhead. -- This message was sent by Atlassian Jira (v8.3.4#803005)