Uploaded image for project: 'Kylin'
  1. Kylin
  2. KYLIN-4992

Source row count statistics calculated in a wrong way in MergeDictionaryMapper

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • v3.0.0, v2.6.2, v2.6.3, v3.1.0, v3.0.1, v3.0.2, v3.1.1, v3.1.2
    • v3.1.3
    • None
    • None

    Description

      With this bug, source row count will be smaller than the correct one and it will result in smaller cuboid size estimation and smaller region number. Finally it will impact job and query performance.

      Attachments

        Issue Links

          is caused by

          Improvement - An improvement or enhancement to an existing feature or task. KYLIN-3926 Should set sourceRecordCount when updating statistics

          • Major - Major loss of function.
          • Closed

          Activity

            People

              JiangYang JiangYang
              yaho Zhong Yanghong
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: