Brian Hulette created BEAM-11710:
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Summary: groupby cannot aggregate grouped column
Key: BEAM-11710
URL: https://issues.apache.org/jira/browse/BEAM-11710
Project: Beam
Issue Type: Bug
Components: sdk-py-core
Reporter: Brian Hulette
Assignee: Brian Hulette
pandas allows you to aggregate on the same column that you are grouping on.
Attempting this in the Beam implementation results in an error.
df.groupby('group')[['group', 'foo']].count()
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