first() function

Warning! This page documents an earlier version of Flux, which is no longer actively developed. Flux v0.50 is the most recent stable version of Flux.

The first() function selects the first non-null record from an input table.

Function type: Selector
Output data type: Object

first()

Examples

from(bucket:"telegraf/autogen")
  |> range(start:-1h)
  |> filter(fn: (r) =>
    r._measurement == "cpu" AND
    r._field == "usage_system"
  )
  |> first()

FIRST()