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  1. Hive
  2. HIVE-7978

Implement SplitSampler for parallel orderby

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Duplicate
    • None
    • None
    • Query Processor
    • None

    Description

      Currently for parallel order-by, random sampler is the only choice, which can be not good in some cases.

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          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-9210 Support split sampling for parallel order by

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Patch Available
          is blocked by

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-7977 Avoid creating serde for partitions if possible in FetchTask

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Resolved

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              navis Navis Ryu
              navis Navis Ryu
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              Dates

                Created:
                Updated:
                Resolved: