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  1. Spark
  2. SPARK-18540

Wholestage code-gen for ORC Hive tables

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • 2.3.0
    • None
    • 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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        Issue Links

          blocks

          Improvement - An improvement or enhancement to an existing feature or task. SPARK-20901 Feature parity for ORC with Parquet

          • Major - Major loss of function.
          • Open
          duplicates

          New Feature - A new feature of the product, which has yet to be developed. SPARK-16060 Vectorized ORC reader

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              Unassigned Unassigned
              Daimon Damian Momot
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              Dates

                Created:
                Updated:
                Resolved: