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Posted to jira@arrow.apache.org by "Todd Farmer (Jira)" <ji...@apache.org> on 2022/07/12 14:05:02 UTC

[jira] [Assigned] (ARROW-7051) [C++] Improve MakeArrayOfNull to support creation of multiple arrays

     [ https://issues.apache.org/jira/browse/ARROW-7051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Farmer reassigned ARROW-7051:
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    Assignee:     (was: Jeroen van Straten)

This issue was last updated over 90 days ago, which may be an indication it is no longer being actively worked. To better reflect the current state, the issue is being unassigned. Please feel free to re-take assignment of the issue if it is being actively worked, or if you plan to start that work soon.

> [C++] Improve MakeArrayOfNull to support creation of multiple arrays
> --------------------------------------------------------------------
>
>                 Key: ARROW-7051
>                 URL: https://issues.apache.org/jira/browse/ARROW-7051
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 0.14.0
>            Reporter: Ben Kietzman
>            Priority: Minor
>              Labels: beginner, good-first-issue, pull-request-available
>          Time Spent: 10h
>  Remaining Estimate: 0h
>
> MakeArrayOfNull reuses a single buffer of {{0}} for all buffers in the array it creates. It could be extended to reuse that same buffer for all buffers in multiple arrays. This optimization will make RecordBatchProjector and ConcatenateTablesWithPromotion more memory efficient



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