For v3 we're supporting InfluxQL natively in addition to SQL. The InfluxQL implementation is actually just a front end on top of DataFusion, the SQL engine we u

For v3 we're supporting InfluxQL natively in addition to SQL. The InfluxQL implementation is actually just a front end on top of DataFusion, the SQL engine we use. We really wanted to bring Flux along too, but found that it was too difficult in the near term to have it work well with v3. We spent a bunch of time building a gRPC API that Flux uses to talk to v3 (the same thing we have in our Cloud v2 product), but that API was designed with the previous storage engine in mind. It ended up being brittle and performed very poorly. So at this point the long term supported languages for InfluxQL and SQL, but we're continuing to support Flux for our customers.