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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2015/10/29 05:03:28 UTC

[jira] [Created] (SPARK-11392) GroupedIterator's hasNext is not idempotent

Yin Huai created SPARK-11392:
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             Summary: GroupedIterator's hasNext is not idempotent
                 Key: SPARK-11392
                 URL: https://issues.apache.org/jira/browse/SPARK-11392
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Yin Huai


If we call [GroupedIterator|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/GroupedIterator.scala]'s {{hasNext}} immediately after its {{next}}, we will generate an extra group ([CoGroupedIterator|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/CoGroupedIterator.scala] has this behavior). 





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