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  1. Spark
  2. SPARK-9999 Dataset API on top of Catalyst/DataFrame
  3. SPARK-11392

GroupedIterator's hasNext is not idempotent

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • None
    • None
    • SQL
    • None

    Description

      If we call GroupedIterator's hasNext immediately after its next, we will generate an extra group (CoGroupedIterator has this behavior).

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            Unassigned Unassigned
            yhuai Yin Huai
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