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Posted to issues@arrow.apache.org by "Ben Kietzman (Jira)" <ji...@apache.org> on 2019/12/16 15:45:00 UTC

[jira] [Resolved] (ARROW-843) [C++] Implement Schema unification, merging unequal but equivalent schemas

     [ https://issues.apache.org/jira/browse/ARROW-843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ben Kietzman resolved ARROW-843.
--------------------------------
    Resolution: Fixed

Issue resolved by pull request 6024
[https://github.com/apache/arrow/pull/6024]

> [C++] Implement Schema unification, merging unequal but equivalent schemas
> --------------------------------------------------------------------------
>
>                 Key: ARROW-843
>                 URL: https://issues.apache.org/jira/browse/ARROW-843
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++, C++ - Dataset
>            Reporter: Wes McKinney
>            Assignee: Francois Saint-Jacques
>            Priority: Major
>              Labels: dataset, parquet, pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Some Parquet datasets may contain schemas with mixed REQUIRED/OPTIONAL repetition types. While such schemas aren't strictly equal, we will need to consider them equivalent on the read path



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