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  1. Hive
  2. HIVE-4639

Add has null flag to ORC internal index

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.1.0
    • File Formats
    • None
    • Support for hasNull flag in ORC row group index.

    Description

      It would enable more predicate pushdown if we added a flag to the index entry recording if there were any null values in the column for the 10k rows.

      Attachments

        1. HIVE-4639.3.patch
          284 kB
          Prasanth Jayachandran
        2. HIVE-4639.2.patch
          273 kB
          Prasanth Jayachandran
        3. HIVE-4639.1.patch
          147 kB
          Prasanth Jayachandran

        Issue Links

          blocks

          New Feature - A new feature of the product, which has yet to be developed. HIVE-9188 BloomFilter support in ORC

          • Major - Major loss of function.
          • Closed
          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-7215 Support predicate pushdown for null checks in ORCFile

          • Major - Major loss of function.
          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-9443 ORC PPD - fix fuzzy case evaluation of IS_NULL

          • Major - Major loss of function.
          • Resolved
          links to

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          Activity

            People

              prasanth_j Prasanth Jayachandran
              omalley Owen O'Malley
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              Dates

                Created:
                Updated:
                Resolved: