Hive
  1. Hive
  2. HIVE-195

map-side joins are not supported

    Details

    • Type: New Feature New Feature
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.4.0
    • Component/s: Query Processor
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
      HIVE-195. Map-side join. (Namit Jain via zshao)

      Description

      map-side joins are not supported.

      If all the tables but one are small and can fit in memory, the join should be performed on the map-side. Ideally, it should be all cost-based, but
      to start with, the user should be given an option to specify that he needs a map-side join.

      1. hive.195.9.patch
        963 kB
        Namit Jain
      2. hive.195.8.patch
        961 kB
        Namit Jain
      3. hive.195.7.patch
        961 kB
        Namit Jain
      4. hive.195.6.patch
        964 kB
        Namit Jain
      5. hive.195.5.patch
        964 kB
        Namit Jain
      6. hive.195.4.patch
        928 kB
        Namit Jain
      7. 195.patch3.txt
        529 kB
        Namit Jain
      8. 195.patch2.txt
        498 kB
        Namit Jain
      9. 195.patch1.txt
        267 kB
        Namit Jain

        Issue Links

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            People

            • Assignee:
              Namit Jain
              Reporter:
              Namit Jain
            • Votes:
              1 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development