Influxdb 2.1 - using timeshift() function consumes all memory

InfluxDB 2
2

Alright, I found the issue in plain sight.
Of course it is rather stupid to timeshift before filtering any value and therefore apply the timeshift to the whole bucket :wink:

So

from(bucket: v.defaultBucket)
  |> range(start: -10d, stop:3d)
  |> filter(fn: (r) =>
    r._measurement == "WeatherService_ForecastDay3_MaxTemperature"
  )
  |> set(key: "_measurement", value: "")
  |> set(key: "_field", value: "Temperatur Max")
  |> timeShift(duration:72h)

Works just fine.
However with Influxdb 1 also the first variant was possible without any crashes. Probably something which could be more robust in Influxdb 2