Don't do an extra shuffle in some TopN cases #2536
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Signed-off-by: Robert (Bobby) Evans <bobby@apache.org>
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jlowe
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Signed-off-by: Robert (Bobby) Evans <bobby@apache.org>
nartal1
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to nartal1/spark-rapids
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Signed-off-by: Robert (Bobby) Evans <bobby@apache.org>
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This is a very small performance improvement for TakeOrderedAndProject. It just skips doing an extra shuffle if the input partitioning is already a single partition. This can happen when doing a window operation with no partitioning. Not common, but it can help.