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
SELECT "Category",
"Descript",
"DayOfWeek",
CUME_DIST()
OVER (
PARTITION BY "Category"
ORDER BY "DayOfWeek")
FROM eth.recent_blocks
-- 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.
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