Documentation

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
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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 columns parameter 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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View example input and output


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