Finding which policies were used to make a sampling decision for a trace

[mugli]

Hey,
For using tailsamplingprocessor with a bunch of policies, is there any way to know which policy (or policies) was used to make the sampling decision at the end? Is there maybe any way to add that information to the root-span attribute? This could help a lot in debugging and cost-monitoring.

[mugli]

Answered on slack :) https://cloud-native.slack.com/archives/CJFCJHG4Q/p1712918735336339?thread_ts=1712905555.905879&cid=CJFCJHG4Q