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https://issues.apache.org/jira/browse/BEAM-14162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brian Hulette updated BEAM-14162:
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Status: Open (was: Triage Needed)
> DataFrame groupby does not support Grouper objects
> --------------------------------------------------
>
> Key: BEAM-14162
> URL: https://issues.apache.org/jira/browse/BEAM-14162
> Project: Beam
> Issue Type: Bug
> Components: dsl-dataframe
> Reporter: Brian Hulette
> Priority: P2
>
> pandas has the concept of a
> [Grouper|https://pandas.pydata.org/docs/reference/api/pandas.Grouper.html],
> which can be passed to groupby to provide additional metadata. Currently we
> don't support these in the DataFrame API, we assume all arguments are just
> labels.
> We should explicitly reject these for now, then add support for them.
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