Questions about wonderful TraceQL Metrics feature

[pingping95]

I`m now testing TraceQL Metrics at Grafana 10.4 and Tempo 2.4

First of all, thank you for creating such an awesome feature.

I'm testing it out and it's working like a charm, except that the intermittent querier out of memory (this is fine. expected. calculating metrics are hard job.)

I have few questions.

1. Since TraceQL Metric is currently an experimental feature, I was wondering what improvements are planned for the future?

2. I've only tried the feature in 'Grafana Explore - Tempo - TraceQL' at the moment, is it possible to integrate this feature with Dashboard?

3. If the metrics generator is holding data and then restarts and loses the data, will the TraceQL Metric be triggered from the time the data is collected?

4. Is there a specific time range for which I can use TraceQL Metric?
   for example, as i know, aggregated_by feature was only able 1 hours (it`s not sure)

Thank you!