experimental.group() function
experimental.group() is subject to change at any time.
experimental.group() introduces an extend mode to the existing group() function.
Function type signature
(<-tables: stream[A], columns: [string], mode: string) => stream[A] where A: Record
For more information, see Function type signatures.
Parameters
columns
(Required)
List of columns to use in the grouping operation. Default is [].
mode
(Required)
Grouping mode. extend is the only mode available to experimental.group().
Grouping modes
- extend: Appends columns defined in the
columnsparameter to group keys.
tables
Input data. Default is piped-forward data (<-).
Examples
Add a column to the group key
import "experimental"
data
|> experimental.group(columns: ["region"], mode: "extend")
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