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https://issues.apache.org/jira/browse/SPARK-37564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-37564:
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Assignee: (was: Apache Spark)
> Support sort aggregate code-gen without grouping keys
> -----------------------------------------------------
>
> Key: SPARK-37564
> URL: https://issues.apache.org/jira/browse/SPARK-37564
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Cheng Su
> Priority: Minor
>
> We can support `SortAggregateExec` code-gen without grouping keys. When
> there's no grouping key, sort aggregate should share same execution logic
> with hash aggregate. Refactor the code-gen without grouping keys, from
> `HashAggregateExec` to a base class `AggregateCodegenSupport`, and
> `SortAggregateExec` can share the same implementation by extending
> `AggregateCodegenSupport`.
> The implementation of `SortAggregateExec` code-gen with grouping keys will be
> added in follow-up PR.
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