Uploaded image for project: 'Kylin'
  1. Kylin
  2. KYLIN-976

Support Custom Aggregation Types

    XMLWordPrintableJSON

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: v1.3.0, v1.5.0
    • Component/s: Job Engine, Query Engine
    • Labels:
      None

      Description

      Currently, Kylin supports 6 basic aggregation measure functions:
      Min/Max/Sum/Count/Avg/DistinctCount

      But there are also many other cases require to support more complicate measure expression, for example:
      COUNT(CASE WHEN so.ft = 'fv' THEN soi.sc ELSE NULL END) or Sum(if...)

      Or even more complicated measures like TopN and RawRecords

      To open this JIRA to tracking further implementation

        Attachments

          Issue Links

          is depended upon by

          New Feature - A new feature of the product, which has yet to be developed. KYLIN-1122 Kylin support detail data query from fact table

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. KYLIN-1186 Support precise Count Distinct using bitmap (under limited conditions)

          • Major - Major loss of function.
          • Closed

            Activity

              People

              • Assignee:
                mahongbin Hongbin Ma
                Reporter:
                lukehan Luke Han
              • Votes:
                0 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: