Increasing value series: Difference too small

InfluxDB 2
,
2

Without interpolation, the following looks quite good as it does not introduce those small errors:

from(bucket: "default")
  |> range(start: 2024-04-01T00:00:00Z, stop: 2024-04-03T23:59:59Z)
  |> filter(fn: (r) => r["_measurement"] == "Measurement")
  |> aggregateWindow(every: 1d, fn: max)

will output

2024-04-01T00:00:00Z:  10
2024-04-02T00:00:00Z:  39

Taken from: Flux: Get total energy by month with an ever-increasing value - #8 by grant1

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