Hi!
I am new to Wavefront so not sure if this is a stupid question..
Basically, I am trying to use a point tag dynamic variable in a dashboard. Let's say "source" for example.
When setting up the variable, it asks for a query.
This query, to my understanding, needs to return some metric that is shared by all the "source"s, and has "source" as one of its point tags?
But when I try to save the variable, it gives the following exception:
Query Exception
- You must have at least one list element
I found a metric that gives me several lines if I do a simple ts() on it. I thought that's a list? But it's apparently not?
Then I want to ask, what is considered a list element? How should I see my metrics' data types (list or not)? What other types are there? I assume there is a documentation page I missed reading on this?
Or, if I am asking wrong questions, what does the error actually mean?
Thanks very much!
