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  1. ORC
  2. ORC-348 Make changes for ORCv2 format.
  3. ORC-49

Improve decimal encoding to use RLE

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.5.0
    • None
    • None

    Description

      Because decimal was added in Hive 0.11 with no maximum precision, the ORC encoding for decimal uses arbitrary var ints. Since Hive 0.12, the maximum precision for decimals fits in 128 bits and thus we can use a much better encoding using the long rle.

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          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. ORC-209 Add Decimal64 Serialization/Deserialization (Part 1)

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

          Web Link GitHub Pull Request #257

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              omalley Owen O'Malley
              omalley Owen O'Malley
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                Created:
                Updated:
                Resolved: