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    Categories: Window

    CUME_DIST

    Returns the cumulative distribution of the current row with regard to other values within the same window partition.

    Syntax

    CUME_DIST() OVER ( [PARTITION BY partition_expression] [ORDER BY order_expression]) → double

    • partition_expression: An optional expression that groups rows into partitions.
    • order_expression: An optional expression that specifies the order of the rows within each partition.

    Examples

    CUME_DIST example 
    SELECT "Category", 
  "Descript", 
  "DayOfWeek",
  CUME_DIST() 
    OVER (
      PARTITION BY "Category" 
      ORDER BY "DayOfWeek")
FROM Samples."samples.dremio.com"."SF_incidents2016.json"

-- Category, Descript, DayOfWeek, EXPR$3
-- ARSON, ARSON, Friday, 0.13636363636363635
-- EMBEZZLEMENT, EMBEZZLED VEHICLE, Friday, 0.18452380952380953

    Usage Notes

    This function does not support cumulative frame windows or sliding frame windows.