Andrew Lamb created ARROW-11289:
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Summary: [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
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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