[jira] [Resolved] (ARROW-9346) [C++][Python][Dataset] Add total_byte_size metadata to RowGroupInfo

["Ben Kietzman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ben Kietzman resolved ARROW-9346.
---------------------------------
    Resolution: Fixed

Issue resolved by pull request 7690
[https://github.com/apache/arrow/pull/7690]

> [C++][Python][Dataset] Add total_byte_size metadata to RowGroupInfo
> -------------------------------------------------------------------
>
>                 Key: ARROW-9346
>                 URL: https://issues.apache.org/jira/browse/ARROW-9346
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++, Python
>            Reporter: Joris Van den Bossche
>            Assignee: Joris Van den Bossche
>            Priority: Major
>              Labels: dataset, dataset-dask-integration, pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> See https://github.com/apache/arrow/pull/7546#issuecomment-651177576. 
> The row group information in Parquet's FileMetadata includes a "total_byte_size" field. It would be useful to expose this information on the RowGroupInfo object, similarly as we already expose "num_rows".
> cc [~rjzamora]



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