RAVG (window)
Syntax
RAVG( value [ , direction ] [ TOTAL | WITHIN ... | AMONG ... ] [ ORDER BY ... ] [ BEFORE FILTER BY ... ] )
Description
Warning
The sorting order is based on the fields listed in the sorting section of the chart and in the ORDER BY clause. First, ORDER BY fields are used, and then they are complemented by the fields from the chart.
Returns the average of all values in a growing (or shrinking) window defined by the sort order and the value of direction:
direction |
Window |
|---|---|
"asc" |
Starts from the first row and ends at the current row. |
"desc" |
Starts from the current row and ends at the last row. |
By default "asc" is used.
Window functions with a similar behavior: RSUM, RCOUNT, RMIN, RMAX.
Argument types:
value—Fractional number | Integerdirection—String
Return type: Integer
Note
Only constant values are accepted for arguments (direction).
Examples
RAVG([Profit])
RAVG([Profit], "asc")
RAVG([Profit] TOTAL)
RAVG([Profit], "desc" WITHIN [Date])
RAVG([Profit] AMONG [Date])
Data source support
Materialized Dataset, ClickHouse 19.13, Microsoft SQL Server 2017 (14.0), MySQL 5.6, Oracle Database 12c (12.1), PostgreSQL 9.3.