Not always [1]. Also in many time-series applications involving sensors whose readings don't fluctuate that much, process historians often apply deadband compr

Not always [1]. Also in many time-series applications involving sensors whose readings don't fluctuate that much, process historians often apply deadband compression (i.e. store only one value if it is within a certain band). The type of compression is lossy and sometimes a bit controversial for high-fidelity uses, but often results in efficient storage. [1] zfp, fpzip: https://computation.llnl.gov/projects/floating-point-compression https://computation.llnl.gov/projects/floating-point-compres...