promql.labelReplace() function

promql.labelReplace() implements functionality equivalent to PromQL’s label_replace() function.

Important: The internal/promql package is not meant for external use.

Function type signature
    <-tables: stream[{A with _value: float}],
    destination: string,
    regex: string,
    replacement: string,
    source: string,
) => stream[{B with _value: float}]
For more information, see Function type signatures.



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


(Required) Input label.


(Required) Output label.


(Required) Pattern as a regex string.


(Required) Replacement value.

Was this page helpful?

Thank you for your feedback!

Linux Package Signing Key Rotation

All signed InfluxData Linux packages have been resigned with an updated key. If using Linux, you may need to update your package configuration to continue to download and verify InfluxData software packages.

For more information, see the Linux Package Signing Key Rotation blog post.

State of the InfluxDB Cloud (IOx) documentation

The new documentation for InfluxDB Cloud backed by InfluxDB IOx is a work in progress. We are adding new information and content almost daily. Thank you for your patience!

If there is specific information you’re looking for, please submit a documentation issue.