Hive
  1. Hive
  2. HIVE-7063

Optimize for the Top N within a Group use case

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.14.0
    • Component/s: None
    • Labels:
      None

      Description

      It is common to rank within a Group/Partition and then only return the Top N entries within each Group.
      With Streaming mode for Windowing, we should push the post filter on the rank into the Windowing processing as a Limit expression.

      1. HIVE-7063.1.patch
        8 kB
        Harish Butani
      2. HIVE-7063.2.patch
        46 kB
        Harish Butani
      3. HIVE-7063.3.patch
        53 kB
        Harish Butani

        Activity

          People

          • Assignee:
            Harish Butani
            Reporter:
            Harish Butani
          • Votes:
            0 Vote for this issue
            Watchers:
            6 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development