[jira] [Resolved] (ARROW-9916) [RUST] Avoid cloning ArrayData in several places

["Andy Grove (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Grove resolved ARROW-9916.
-------------------------------
    Fix Version/s: 2.0.0
       Resolution: Fixed

Issue resolved by pull request 8113
[https://github.com/apache/arrow/pull/8113]

> [RUST] Avoid cloning ArrayData in several places
> ------------------------------------------------
>
>                 Key: ARROW-9916
>                 URL: https://issues.apache.org/jira/browse/ARROW-9916
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust
>    Affects Versions: 1.0.0
>            Reporter: Jörn Horstmann
>            Assignee: Jörn Horstmann
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.0.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> I noticed this while benchmarking improvements in ARROW-9895. A flamegraph showed a significant amount of time spent in Arc::clone/atomic_add followed by Arc::drop/atomic_sub
>  The Array trait has two methods for accessing ArrayData, `.data()` which clones an `Arc<ArrayData>` and `.data_ref()` which only borrows the data. In many places borrow can be used instead of clone.



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