Documentation

first() function

first() returns the first non-null record from each input table.

Note: first() drops empty tables.

Function type signature
(<-tables: stream[A], ?column: string) => stream[A] where A: Record
For more information, see Function type signatures.

Parameters

column

Column to operate on. Default is _value.

tables

Input data. Default is piped-forward data (<-).

Examples

Return the first row in each input table

import "sampledata"

sampledata.int()
    |> first()

View example input and ouput


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