zhengruifeng created SPARK-34307:
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Summary: TakeOrderedAndProjectExec avoid shuffle if input rdd has
single partition
Key: SPARK-34307
URL: https://issues.apache.org/jira/browse/SPARK-34307
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.2.0
Reporter: zhengruifeng
existing impl collects local topKs to a final partition by a
ShuffleExchangeExec,
when the input is small and has only one partition, this shuffle can be skipped.
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