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Posted to jira@arrow.apache.org by "Joris Van den Bossche (Jira)" <ji...@apache.org> on 2020/07/13 07:38:00 UTC

[jira] [Updated] (ARROW-9420) [Rust] Add repartition/shuffle plan

     [ https://issues.apache.org/jira/browse/ARROW-9420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joris Van den Bossche updated ARROW-9420:
-----------------------------------------
    Summary: [Rust] Add repartition/shuffle plan  (was: Add repartition/shuffle plan)

> [Rust] Add repartition/shuffle plan
> -----------------------------------
>
>                 Key: ARROW-9420
>                 URL: https://issues.apache.org/jira/browse/ARROW-9420
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Rust - DataFusion
>            Reporter: Jorge
>            Priority: Major
>
> Some operations (group by, join, over(window.partition_by)) greatly benefit from hash partitioning.
> This is a proposal to add hash partitioning (based on a expression) to this library, so that optimizers can be written to optimize the plan based on the required hashing.



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