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  1. Flink
  2. FLINK-4604

Add support for standard deviation/variance

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Details

    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.3.0
    • Table SQL / API
    • None

    Description

      Calcite's AggregateReduceFunctionsRule can convert SQL AVG, STDDEV_POP, STDDEV_SAMP, VAR_POP, VAR_SAMP to sum/count functions. We should add, test and document this rule.

      If we also want to add this aggregates to Table API is up for discussion.

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          Anton Mushin

        Issue Links

          requires

          Bug - A problem which impairs or prevents the functions of the product. FLINK-4743 The sqrt/power function not accept the real data types.

          • Major - Major loss of function.
          • Closed
          links to

          Web Link GitHub Pull Request #3260

          Activity

            People

              anmu Anton Mushin
              twalthr Timo Walther
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              Dates

                Created:
                Updated:
                Resolved: