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https://issues.apache.org/jira/browse/ARROW-15554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17488413#comment-17488413
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Sarah Gilmore commented on ARROW-15554:
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Wil do!
> [Format][C++] Add "LargeMap" type with 64-bit offsets
> -----------------------------------------------------
>
> Key: ARROW-15554
> URL: https://issues.apache.org/jira/browse/ARROW-15554
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Format
> Reporter: Sarah Gilmore
> Priority: Major
>
> It would be nice if a "LargeMap" type existed along side the "Map" type for
> parity. For other datatypes that require offset arrays/buffers, such as
> String, List, BinaryArray, provides a "large" version of these types, i.e.
> LargeString, LargeList, and LargeBinaryArray. It would be nice to have a
> "LargeMap" for parity.
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