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  1. Spark
  2. SPARK-18540

Wholestage code-gen for ORC Hive tables

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: 2.3.0
    • Component/s: None
    • Labels:
      None

      Description

      Spark already optimizes hive parquet tables reading using whole stage code generation.

      Similar approach could be used for scanning Hive ORC tables - currently standard hive table scan is used.

      ORC is sometimes preferred over parquet in hive ecosystem because of better support and characteristics in certain scenarios

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              • Assignee:
                Unassigned
                Reporter:
                Daimon Damian Momot
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                • Created:
                  Updated:
                  Resolved: