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  1. Spark
  2. SPARK-22206

gapply in R can't work on empty grouping columns

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.2.0
    • 2.1.3, 2.2.1, 2.3.0
    • SparkR, SQL
    • None

    Description

      gapply in R invokes FlatMapGroupsInRExec in runtime, but FlatMapGroupsInRExec.requiredChildDistribution didn't consider empty grouping attributes. So gapply can't work on empty grouping columns.

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            viirya L. C. Hsieh
            viirya L. C. Hsieh
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              Updated:
              Resolved:

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