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https://issues.apache.org/jira/browse/ARROW-2022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc updated ARROW-2022:
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External issue URL: https://github.com/apache/arrow/issues/18003
> [Format] Add custom metadata field specific to a RecordBatch message
> --------------------------------------------------------------------
>
> Key: ARROW-2022
> URL: https://issues.apache.org/jira/browse/ARROW-2022
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Format
> Reporter: Wes McKinney
> Assignee: Micah Kornfield
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.13.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> While we can have schema- and field-level custom metadata, we cannot send
> metadata at the record batch level. This could include things like statistics
> (although statistics isn't a great example, because this might be something
> we want to eventually standardize), but other things too
> See message definitions in
> https://github.com/apache/arrow/blob/master/format/Message.fbs
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