Hello, I am very interested in the query-service using PromQL to read data from ClickHouse. I have checked the setup of ClickHouse domain via Prometheus remote read.
However, since ClickHouse does not provide a remote read/write API, how is it possible to query ClickHouse data with PromQL without an adapter?I couldn't find any conversion logic from PromQL to ClickHouse SQL. However, I noticed SQL logs in the ClickHouse system log, indicating that someone is converting PromQL to SQL.😮
Please explain how the query-service reads metrics stored in ClickHouse without query conversion.