This datasource doesn't require any custom panels to function.
To your point though, it would be nice if grafana supported incremental time range querying out of the box, since many backends don't support streaming data.
Problem is complicated when the query applies time series transformations such as moving averages, where requesting only incremental data can be problematic.
Problem is complicated when the query applies time series transformations such as moving averages, where requesting only incremental data can be problematic.