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  1. IMPALA
  2. IMPALA-3602

Implement percentile and percentile_approx statistical functions

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: Impala 2.6.0
    • Fix Version/s: None
    • Component/s: Backend

      Description

      We should implement those statistical functions. Hive supports them: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF

      • percentile
      • percentile_approx

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          duplicates

          New Feature - A new feature of the product, which has yet to be developed. IMPALA-4025 add functions PERCENTILE_DISC(), PERCENTILE_CONT(), and MEDIAN()

          • Critical - Crashes, loss of data, severe memory leak.
          • In Progress

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              • Assignee:
                Unassigned
                Reporter:
                lv Lars Volker
              • Votes:
                5 Vote for this issue
                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated: