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Posted to jira@arrow.apache.org by "Alexander Ocsa (Jira)" <ji...@apache.org> on 2021/12/06 20:12:00 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 ]

Alexander Ocsa reassigned ARROW-7051:
-------------------------------------

    Assignee:     (was: Ariana Villegas)

> [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: 1h 40m
>  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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