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https://issues.apache.org/jira/browse/ARROW-10259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neville Dipale resolved ARROW-10259.
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Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 9025
[https://github.com/apache/arrow/pull/9025]
> [Rust] Support field metadata
> -----------------------------
>
> Key: ARROW-10259
> URL: https://issues.apache.org/jira/browse/ARROW-10259
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Rust
> Reporter: Neville Dipale
> Assignee: meng qingyou
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.0.0
>
> Time Spent: 5h 40m
> Remaining Estimate: 0h
>
> The biggest hurdle to adding field metadata is HashMap and HashSet not
> implementing Hash, Ord and PartialOrd.
> I was thinking of implementing the metadata as a Vec<(String, String)> to
> overcome this limitation, and then serializing correctly to JSON.
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