It&#x27;s good to have competition in this area. Influx is giving me whiplash (it&#x27;s on its third database engine in six months!)<p>The circular buffer approach is fine, but it does have the drawback of being unable to represent variable-length data (like key-value pairs). It&#x27;s also harder to compress the data.<p>Can a GROUP-BY do windowed aggregations? Like, take an average over ten-minute windows? My SQL knowledge is not great.