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https://issues.apache.org/jira/browse/BEAM-11190?focusedWorklogId=507700&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-507700
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ASF GitHub Bot logged work on BEAM-11190:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Nov/20 18:08
Start Date: 04/Nov/20 18:08
Worklog Time Spent: 10m
Work Description: TheNeuralBit commented on pull request #13256:
URL: https://github.com/apache/beam/pull/13256#issuecomment-721889320
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Issue Time Tracking
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Worklog Id: (was: 507700)
Time Spent: 0.5h (was: 20m)
> grouping on categorical columns requires Singleton partitioning
> ---------------------------------------------------------------
>
> Key: BEAM-11190
> URL: https://issues.apache.org/jira/browse/BEAM-11190
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Brian Hulette
> Priority: P2
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> groupby with observed=False (the default) requires aggregating in the
> Singleton partition since it would otherwise produce results with every index
> value within every partition.
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