Hi,
I am using variables to plot data from various sensors. I have created two variables for two sensor types (HR and BT) that pull a number of sensor IDs. In the Query variable window, I am able to see (see attachment below) that I have multiple sensor IDs for the BT_sensor variable.
In my panel, I am using the variable to query for data for these multiple sensors IDs at once. See the image below:
However, the query is only performed for a single sensor. See the query result:
I have the exact same structure for the HR sensors, which does query the database for all of my sensors values as I expect.
I’ve confirmed there is data is present in the database for more than one of the BT_sensor IDs. – if I just query through my datasource through the command line for the sensor IDs hardcoded, rather than using a variable, I am able to see data. It seems the Grafana variable is failing to do perform the query for multiple values of BT_sensor, even though in the query variable setup window I definitely see that it has multiple values.
Am I doing something wrong or is this a bug?
Eric