I am trying to write a pipeline to export our current time series data that is stored in a regular collection to a time series collection. I can do it as a one-off using $out for testing say one sensor at a time but I can’t do it for all the data at once as $out overwrites the output collection. I tried using $merge instead, but I get the error “lock for timeseries is not allowed”. Are there any alternatives? If not I will just do it by pulling into Python first then writing, which will be slower.
