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Posted to jira@arrow.apache.org by "Jörn Horstmann (Jira)" <ji...@apache.org> on 2021/02/02 09:49:00 UTC

[jira] [Assigned] (ARROW-11471) [Rust] DoubleEndedIterator for BitChunks

     [ https://issues.apache.org/jira/browse/ARROW-11471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jörn Horstmann reassigned ARROW-11471:
--------------------------------------

    Assignee: Jörn Horstmann

> [Rust] DoubleEndedIterator for BitChunks
> ----------------------------------------
>
>                 Key: ARROW-11471
>                 URL: https://issues.apache.org/jira/browse/ARROW-11471
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust
>    Affects Versions: 3.0.0
>            Reporter: Jörn Horstmann
>            Assignee: Jörn Horstmann
>            Priority: Major
>
> The usecase is to efficiently find the last non-null value in an array slice by iterating over the bits in chunks and using u64::leading_zeroes



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