Warning! This page documents an earlier version of Flux, which is no longer actively developed. Flux v0.36 is the most recent stable version of Flux.
The count() function outputs the number of non-null records in each aggregated column.
Function type: Aggregate
Output data type: Integer
count(columns: ["_value"])
Parameters
columns
A list of columns on which to operate
Defaults to ["_value"].
Data type: Array of strings
Examples
from(bucket: "telegraf/autogen")
|> range(start: -5m)
|> count()
from(bucket: "telegraf/autogen")
|> range(start: -5m)
|> count(columns: ["_value"])