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https://issues.apache.org/jira/browse/SPARK-43295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruifeng Zheng reassigned SPARK-43295:
-------------------------------------
Assignee: Haejoon Lee
> Make DataFrameGroupBy.sum support for string type columns
> ---------------------------------------------------------
>
> Key: SPARK-43295
> URL: https://issues.apache.org/jira/browse/SPARK-43295
> Project: Spark
> Issue Type: Sub-task
> Components: Pandas API on Spark
> Affects Versions: 4.0.0
> Reporter: Haejoon Lee
> Assignee: Haejoon Lee
> Priority: Major
> Labels: pull-request-available
>
> From pandas 2.0.0, DataFrameGroupBy.sum also works for string type columns:
> {code:java}
> >>> psdf
> A B C D
> 0 1 3.1 a True
> 1 2 4.1 b False
> 2 1 4.1 b False
> 3 2 3.1 a True
> >>> psdf.groupby("A").sum().sort_index()
> B D
> A
> 1 7.2 1
> 2 7.2 1
> >>> psdf.to_pandas().groupby("A").sum().sort_index()
> B C D
> A
> 1 7.2 ab 1
> 2 7.2 ba 1 {code}
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