UPDATE on field keys

Hi there,

I was googling a topic for a while but found nothing.

I noticed my DHT22 needs calibration on humidity measurements. It collects data for more than a year so I would like to update historical data as well. Is there a way to update old measurements? Looks like there is nothing like SQL UPDATE command here in InfluxDB so the only way that comes to my mind is to write a python script to get every single row, change it and insert again (should ovverite previous data if I am not mistaken).

Anyone has better idea?