tickscript.selectWindow() function

tickscript.selectWindow() is a user-contributed function maintained by the package author.

tickscript.selectWindow() changes a column’s name, windows rows by time, and then applies an aggregate or selector function the specified column for each window of time.

TICKscript helper function

tickscript.selectWindow is a helper function meant to replicate TICKscript operations like the following:

// Rename, window, and aggregate
query("SELECT f(x) AS y")
  .groupBy(time(t), ...)
Function type signature
    <-tables: stream[D],
    as: string,
    defaultValue: A,
    every: duration,
    fn: (<-: stream[B], column: string) => stream[C],
    ?column: string,
) => stream[E] where B: Record, C: Record, D: Record, E: Record

For more information, see Function type signatures.



Column to operate on. Default is _value.


(Required) Aggregate or selector function to apply.


(Required) New column name.


(Required) Duration of windows.


(Required) Default fill value for null values in column. Must be the same data type as column.


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


Change the name of, window, and then aggregate the value column

import "contrib/bonitoo-io/tickscript"

    |> tickscript.selectWindow(fn: sum, as: "example-name", every: 1h, defaultValue: 0)

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: