[jira] [Updated] (PARQUET-1392) [C++] Supply row group indices to parquet::arrow::FileReader::ReadTable

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PARQUET-1392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated PARQUET-1392:
------------------------------------
    Labels: pull-request-available  (was: )

> [C++] Supply row group indices to parquet::arrow::FileReader::ReadTable
> -----------------------------------------------------------------------
>
>                 Key: PARQUET-1392
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1392
>             Project: Parquet
>          Issue Type: New Feature
>          Components: parquet-cpp
>            Reporter: Uwe L. Korn
>            Assignee: Uwe L. Korn
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: cpp-1.5.0
>
>
> By looking at the Parquet statistics, a user can already determine with its own logic which RowGroups are interesting for him. Currently we only provide functions to read the whole file or individual RowGroups. By supplying {{parquet::arrow}} with the RowGroups at once, it can better optimize its memory allocations as well as make better use of the underlying thread pool.



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