Grafana plugin seems to map all data types to number:float64

[mmano]

Hi,
Referring to the Grafana plugin (v1.0 with IoTDB 1.3)
Whatever the timeseries data type, the values are served as number:float64 (I mean it does not always make sense for integer types or boolean ... and especially null values)
Is this single mapping the expected behavior ?
Thanks to confirm or invalidate ...

The v2 rest api has another behavior, which is correct in my point of view (i.e NULL are kept as-is and are not mangled to a fake zero)