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Posted to jira@arrow.apache.org by "Ritchie (Jira)" <ji...@apache.org> on 2021/01/01 14:52:00 UTC

[jira] [Closed] (ARROW-10554) [Rust] Default to non-cryptographic hash function?

     [ https://issues.apache.org/jira/browse/ARROW-10554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ritchie closed ARROW-10554.
---------------------------
    Resolution: Fixed

> [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.



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