Documentation

v1.tagKeys() function

v1.tagkeys() was deprecated in Flux v0.88.0 in favor of schema.tagkeys().

The v1.tagKeys() function returns a list of tag keys for all series that match the predicate. The return value is always a single table with a single column, _value.

import "influxdata/influxdb/v1"

v1.tagKeys(
  bucket: "example-bucket",
  predicate: (r) => true,
  start: -30d
)

Parameters

bucket

Bucket to return tag keys from.

Data type: String

predicate

Predicate function that filters tag keys. Defaults to (r) => true.

Data type: Function

start

Oldest time to include in results. Defaults to -30d.

Relative start times are defined using negative durations. Negative durations are relative to now. Absolute start times are defined using time values.

Data type: Duration

Examples

import "influxdata/influxdb/v1"

v1.tagKeys(bucket: "my-bucket")

Function definition

package v1

tagKeys = (bucket, predicate=(r) => true, start=-30d) =>
  from(bucket: bucket)
    |> range(start: start)
    |> filter(fn: predicate)
    |> keys()
    |> keep(columns: ["_value"])
    |> distinct()

Used functions: from, range, filter, keys, keep, distinct


New! Cloud or OSS?

InfluxDB OSS 2.0 now generally available!

InfluxDB OSS 2.0 is now generally available and ready for production use. See the InfluxDB OSS 2.0 release notes.

For information about upgrading to InfluxDB OSS 2.0, see: