timeShift() function

timeShift() adds a fixed duration to time columns.

The output table schema is the same as the input table schema. null time values remain null.

Function type signature

(<-tables: stream[A], duration: duration, ?columns: [string]) => stream[A]

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

duration

({{< req >}}) Amount of time to add to each time value. May be a negative duration.

columns

List of time columns to operate on. Default is ["_start", "_stop", "_time"].

tables

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

Examples

• Shift timestamps forward in time
• Shift timestamps backward in time

Shift timestamps forward in time

import "sampledata"

sampledata.int()
    |> timeShift(duration: 12h)

{{< expand-wrapper >}} {{% expand "View example input and output" %}}

Input data

Output data

{{% /expand %}} {{< /expand-wrapper >}}

Shift timestamps backward in time

import "sampledata"

sampledata.int()
    |> timeShift(duration: -12h)

{{< expand-wrapper >}} {{% expand "View example input and output" %}}

Input data

Output data

{{% /expand %}} {{< /expand-wrapper >}}