Uploaded image for project: 'Hive'
  1. Hive
  2. HIVE-9132 CBO: Calcite Operator To Hive Operator (Calcite Return Path)
  3. HIVE-10493

Merge multiple joins when join keys are the same

    XMLWordPrintableJSON

Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • None
    • 1.2.0
    • CBO
    • None

    Description

      CBO return path: auto_join3.q is joined on the same key from 3 sources. It is translated into 2 map joins. Need to merge them into a single one.

      Attachments

        Issue Links

          duplicates

          Sub-task - The sub-task of the issue HIVE-10071 CBO (Calcite Return Path): Join to MultiJoin rule

          • Major - Major loss of function.
          • Closed

          Activity

            People

              pxiong Pengcheng Xiong
              pxiong Pengcheng Xiong
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: