Is there a way to specify filtering on Grafana query to include only results which have a specific label empty? Or at least have the only results with the label specified, even if it has an empty value?
My query looks like this. I want to list logs where I have traceId empty. Which unfortunately includes all logs where I do not have a traceId label.
{container="myproject-subfunction"}
|json|__error__ = ""
|traceId = ""
I want to distinguish between these two rows. And my current query includes both of them.
- Without the label
{"level":"info","message":"Some message 1"} - With the label empty
{"level":"info","message":"Some message 2","traceId":""}
ps: This is about verifying a bugfix, where our code incorrectly logged empty fields.