Hello,

Thanks to SQL analytics capabilities, PostgreSQL can be a good candidate as a storage backend. It allows to perform statistics computation, for example, average duration for a given operation, compare it with current day and yesterday...

I didn't start to write code. I just spent some times to study the model and how gRPC works. I first thought to add a storage backend, then I discovered gRPC plugin.

Here is the model I think should be suitable :

(Don't pay attention to types, I temporary used text in many place).

What do you think of this idea? Is there other people interested with it?