I'm trying to use the resampling aggregation functions avgResample, anyResample .. for downscaling time series metric data. When there is no data in the interval for downsampling, the resample results depend on the used aggregation function.
For example avgResample gives nan values but minResamples gives 0

select avgResample(10,20,2)(value, number) from (select number, rand()/4294967296 as value from numbers(10))

avgResample(10, 20, 2)(value, number)
[nan,nan,nan,nan,nan]

minResample(10, 20, 2)(value, number)
[0,0,0,0,0]                           │

IMHO when downsampling floating point data the resample function should return nan values in this case.