Following @leonardo’s example. What would be the best way to merge back key_A with key_B? Fortunately, latitude, longitude, and GeoHash are values of same frmpayload_data_location measurement. But I still wonder how to reunite measurement that should be together like acceleration_x, acceleration_y, and acceleration_z (among other use cases). InfluxQL has no merge functionality. But Flux has the join() function that works like SQL’s JOIN statement. However, it only allows to join two streams.
Maybe, you have a suggestion rather than trying to chain nested join().