experimental.fill() function

experimental.fill() replaces all null values in the _value column with a non-null value.

Function type signature

(<-tables: stream[{B with _value: A}], ?usePrevious: bool, ?value: A) => stream[{B with _value: A}]

Parameters

value

Value to replace null values with. Data type must match the type of the _value column.

usePrevious

Replace null values with the value of the previous non-null row.

tables

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

Examples

• Fill null values with a specified non-null value
• Fill null values with the previous non-null value

Fill null values with a specified non-null value

import "experimental"
import "sampledata"

sampledata.int(includeNull: true)
    |> experimental.fill(value: 0)

Fill null values with the previous non-null value

import "experimental"
import "sampledata"

sampledata.int(includeNull: true)
    |> experimental.fill(usePrevious: true)