[jira] [Resolved] (ARROW-10449) [Rust] Make dictionary keys be a PrimitiveArray

["Neville Dipale (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-10449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neville Dipale resolved ARROW-10449.
------------------------------------
    Fix Version/s: 3.0.0
       Resolution: Fixed

Issue resolved by pull request 8561
[https://github.com/apache/arrow/pull/8561]

> [Rust] Make dictionary keys be a PrimitiveArray
> -----------------------------------------------
>
>                 Key: ARROW-10449
>                 URL: https://issues.apache.org/jira/browse/ARROW-10449
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust
>    Affects Versions: 3.0.0
>            Reporter: Jorge Leitão
>            Assignee: Jorge Leitão
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.0.0
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> Currently, dictionary keys use a NullIterator to iterate them. However, physically, they are fully allocated in memory and are interpretable as a PrimitiveArray.
> This issue's main purpose is to have `keys` return a `PrimitiveArray`, so that users can use it as any other array.
> This will also allow to remove `NullIter`.



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