[
https://issues.apache.org/jira/browse/ARROW-4748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andy Grove updated ARROW-4748:
------------------------------
Fix Version/s: (was: 0.13.0)
0.14.0
> [Rust] [DataFusion] GROUP BY performance could be optimized
> -----------------------------------------------------------
>
> Key: ARROW-4748
> URL: https://issues.apache.org/jira/browse/ARROW-4748
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust, Rust - DataFusion
> Affects Versions: 0.12.0
> Reporter: Andy Grove
> Priority: Major
> Fix For: 0.14.0
>
>
> The logic to build the group by keys is row-based, performing an array
> downcast on every single group by value. This could be done in a columnar way
> instead.
>
> I also wonder if it is possible to avoid converting the result map to an
> array of map entries.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
