Hi all, SigNoz supports PromQL as well as Query Builder. Is there a separate page where the PromQL functions supported by SigNoz are defined?

It is same PromQL as upstream there is no separate functions.

Do PromQL requests get translated to clickhouse queries or does signoz need to be configured with a prometheus database?

Promql requests don't get translated to clickhouse queries directly. However, we query the CH and return the data to PromQL engine.