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  1. Hive
  2. HIVE-1003

optimize metadata only queries

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.8.0
    • Query Processor
    • None
    • Incompatible change
    • Added support for metadata only queries.

    Description

      Queries like:

      select max(ds) from T

      where ds is a partitioning column should be optimized.

      Attachments

        1. HIVE-1003.1.patch
          40 kB
          Marcin Kurczych
        2. hive.1003.2.patch
          40 kB
          Namit Jain
        3. hive.1003.3.patch
          72 kB
          Namit Jain
        4. ASF.LICENSE.NOT.GRANTED--D105.1.patch
          0.4 kB
          Phabricator
        5. hive.1003.4.patch
          96 kB
          Namit Jain
        6. ASF.LICENSE.NOT.GRANTED--D105.2.patch
          75 kB
          Phabricator
        7. ASF.LICENSE.NOT.GRANTED--HIVE-1003.D105.3.patch
          34 kB
          Phabricator

        Issue Links

          is depended upon by

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-2119 Optimizer on partition field

          • Major - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-15397 metadata-only queries may return incorrect results with empty tables

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

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-2232 Any query to a partition column should access the metastore and not the data

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Activity

            People

              marcink Marcin Kurczych
              namit Namit Jain
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              Dates

                Created:
                Updated:
                Resolved: