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  1. Hive
  2. HIVE-4123

The RLE encoding for ORC can be improved

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.12.0
    • 0.12.0
    • File Formats
    • I just committed this. Thanks, Prasanth!
    • orc, rle, encoding

    Description

      The run length encoding of integers can be improved:

      • tighter bit packing
      • allow delta encoding
      • allow longer runs

      Attachments

        1. HIVE-4123.patch.txt
          150 kB
          Owen O'Malley
        2. HIVE-4123-8.patch
          150 kB
          Owen O'Malley
        3. HIVE-4123.8.txt
          150 kB
          Owen O'Malley
        4. HIVE-4123.8.txt
          150 kB
          Prasanth Jayachandran
        5. HIVE-4123.7.txt
          151 kB
          Prasanth Jayachandran
        6. ORC-Compression-Ratio-Comparison.xlsx
          60 kB
          Prasanth Jayachandran
        7. HIVE-4123.6.txt
          129 kB
          Prasanth Jayachandran
        8. HIVE-4123.5.txt
          119 kB
          Prasanth Jayachandran
        9. HIVE-4123.4.patch.txt
          118 kB
          Prasanth Jayachandran
        10. HIVE-4123.3.patch.txt
          129 kB
          Prasanth Jayachandran
        11. HIVE-4123.2.git.patch.txt
          140 kB
          Prasanth Jayachandran
        12. HIVE-4123.1.git.patch.txt
          194 kB
          Prasanth Jayachandran

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              prasanth_j Prasanth Jayachandran
              omalley Owen O'Malley
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              Dates

                Created:
                Updated:
                Resolved: