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Posted to jira@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/01/17 13:55:00 UTC

[jira] [Updated] (ARROW-11289) [Rust] [DataFusion] Support GROUP BY for Dictionary columns

     [ https://issues.apache.org/jira/browse/ARROW-11289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-11289:
-----------------------------------
    Labels: pull-request-available  (was: )

> [Rust] [DataFusion] Support GROUP BY for Dictionary columns
> -----------------------------------------------------------
>
>                 Key: ARROW-11289
>                 URL: https://issues.apache.org/jira/browse/ARROW-11289
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust - DataFusion
>            Reporter: Andrew Lamb
>            Assignee: Andrew Lamb
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> If you try and run a query that groups on a column encoded as a Dictionary you get an error about "unsupported GROUP BY type". You should get the same result as if your data was encoded using a primitive array type. 



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