Documentation

promql.changes() function

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

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

Function type signature
(<-tables: stream[{A with _value: float}]) => stream[{B with _value: float}]

For more information, see Function type signatures.

Parameters

tables

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

Examples

Return the number of times that values in a series change

import "internal/promql"
import "sampledata"

sampledata.float()
    |> promql.changes()

View example input and output


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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: