Best way to copy specific measurement(s) from Influx 1.8 to Influx 2.2

Hello,
I would like to know the best way to copy specific data from an Influx database from V1.8 to V2.2

As far as I can tell, the only way to get this data is to run a full database backup with influxd backup, then restore that database to a new server, then upgrade the server to 2.2 and then finally I can export a specific measurement in line protocol and restore it.

Is there perhaps an easier way I can export the data and import it? We have several TB of data in the database and I only need a subset of it.

Thanks in advance.

@brettplarson

I had to do the same task, but in my case my Influx v1.8 data was horribly organized (did not correctly use tags, poor field name choices, etc.). I thought well and hard to develop the proper structure of fields and tags, then created a blank v2.3 database.

I ended up using Node-RED to transfer the data. By doing that, I could massage the data (change/add tags, correct field names, etc.). More here.