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Posted to issues@arrow.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/03/15 00:26:00 UTC

[jira] [Updated] (ARROW-3822) [C++] parquet::arrow::FileReader::GetRecordBatchReader has logical error on row groups with chunked columns

     [ https://issues.apache.org/jira/browse/ARROW-3822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-3822:
----------------------------------
    Labels: pull-request-available  (was: )

> [C++] parquet::arrow::FileReader::GetRecordBatchReader has logical error on row groups with chunked columns
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-3822
>                 URL: https://issues.apache.org/jira/browse/ARROW-3822
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Benjamin Kietzman
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.13.0
>
>
> If a BinaryArray / StringArray overflows a single column when reading a row group, the resulting table will have a ChunkedArray. Using TableBatchReader in 
> https://github.com/apache/arrow/blob/master/cpp/src/parquet/arrow/reader.cc#L176
> will therefore only return a part of the row group, discarding the rest



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