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Posted to jira@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2021/11/03 10:36:00 UTC

[jira] [Resolved] (ARROW-14355) [C++] Create naive implementation of algorithm to estimate table/batch buffer size

     [ https://issues.apache.org/jira/browse/ARROW-14355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Weston Pace resolved ARROW-14355.
---------------------------------
    Fix Version/s: 7.0.0
       Resolution: Fixed

Issue resolved by pull request 11441
[https://github.com/apache/arrow/pull/11441]

> [C++] Create naive implementation of algorithm to estimate table/batch buffer size
> ----------------------------------------------------------------------------------
>
>                 Key: ARROW-14355
>                 URL: https://issues.apache.org/jira/browse/ARROW-14355
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: C++
>            Reporter: Weston Pace
>            Assignee: Weston Pace
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 7.0.0
>
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> This will simply sum up all of the buffers.  It will overestimate in a few cases:
>  * If there are offsets it will overestimate
>  * If there are shared buffers it will overestimate
> It only measures the size of the buffers and will not consider the control data (e.g. the C objects wrapping the data) or, specifically for ExecBatch, it will not count scalars.



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