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  1. Hive
  2. HIVE-11775

Implement limit push down through union all in CBO

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.2.1
    • 2.0.0
    • None
    • None

    Description

      Enlightened by HIVE-11684 (Kudos to jcamachorodriguez), we can actually push limit down through union all, which reduces the intermediate number of rows in union branches.

      Attachments

        1. HIVE-11775.01.patch
          6 kB
          Pengcheng Xiong
        2. HIVE-11775.02.patch
          22 kB
          Pengcheng Xiong
        3. HIVE-11775.03.patch
          71 kB
          Pengcheng Xiong
        4. HIVE-11775.04.patch
          71 kB
          Pengcheng Xiong
        5. HIVE-11775.05.patch
          70 kB
          Pengcheng Xiong
        6. HIVE-11775.06.patch
          89 kB
          Pengcheng Xiong
        7. HIVE-11775.07.patch
          100 kB
          Pengcheng Xiong
        8. HIVE-11775.08.patch
          72 kB
          Pengcheng Xiong
        9. HIVE-11775.09.patch
          90 kB
          Pengcheng Xiong
        10. HIVE-11775.10.patch
          59 kB
          Pengcheng Xiong
        11. HIVE-11775.11.patch
          62 kB
          Pengcheng Xiong
        12. HIVE-11775.12.patch
          62 kB
          Pengcheng Xiong
        13. HIVE-11775.13.patch
          63 kB
          Pengcheng Xiong

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              pxiong Pengcheng Xiong
              pxiong Pengcheng Xiong
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              Dates

                Created:
                Updated:
                Resolved: