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  1. Spark
  2. SPARK-1368

HiveTableScan is slow

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.1.0
    • SQL
    • None

    Description

      The major issues here are the use of functional programming (.map, .foreach) and the creation of a new Row object for each output tuple. We should switch to while loops in the critical path and a single MutableRow per partition.

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            lian cheng Cheng Lian
            marmbrus Michael Armbrust
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              Updated:
              Resolved: