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  1. Hive
  2. HIVE-3401

Diversify grammar for split sampling

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Details

    • Improvement
    • Status: Closed
    • Trivial
    • Resolution: Fixed
    • None
    • 0.11.0
    • Query Processor
    • None
    • Reviewed

    Description

      Current split sampling only supports grammar like TABLESAMPLE(n PERCENT). But some users wants to specify just the size of input. It can be easily calculated with a few commands but it seemed good to support more grammars something like TABLESAMPLE(500M).

      Attachments

        1. HIVE-3401.D4821.7.patch
          56 kB
          Phabricator
        2. HIVE-3401.D4821.6.patch
          50 kB
          Phabricator
        3. HIVE-3401.D4821.5.patch
          43 kB
          Phabricator
        4. HIVE-3401.D4821.4.patch
          83 kB
          Phabricator
        5. HIVE-3401.D4821.3.patch
          83 kB
          Phabricator
        6. HIVE-3401.D4821.2.patch
          37 kB
          Phabricator

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-2780 Implement more restrictive table sampler

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

          Activity

            People

              navis Navis Ryu
              navis Navis Ryu
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              Dates

                Created:
                Updated:
                Resolved: