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Posted to issues@beam.apache.org by "Kenneth Knowles (Jira)" <ji...@apache.org> on 2022/04/07 22:02:00 UTC

[jira] [Updated] (BEAM-14236) [Python] Write to Parquet support for list to conform with Apache Parquet specification

     [ https://issues.apache.org/jira/browse/BEAM-14236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles updated BEAM-14236:
-----------------------------------
    Status: Open  (was: Triage Needed)

> [Python] Write to Parquet support for list to conform with Apache Parquet specification
> ---------------------------------------------------------------------------------------
>
>                 Key: BEAM-14236
>                 URL: https://issues.apache.org/jira/browse/BEAM-14236
>             Project: Beam
>          Issue Type: Bug
>          Components: io-py-parquet
>            Reporter: Shivraj Devidas Wabale
>            Assignee: Shivraj Devidas Wabale
>            Priority: P2
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
>
> ARROW-11497 The pyarrow parquet writer now support the list type contains 3 level where the middle level, named {{{}list{}}}, must be a repeated group with a single field named _{{element. [https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#lists|https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#lists,]}}_
> I think we can simply populate it to [WriteToParquet |https://github.com/apache/beam/blob/master/sdks/python/apache_beam/io/parquetio.py#L358]by adding additional flag (use_compliant_nested_type) to 
>  conform with Apache Parquet specification.
> h4.



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