We recently had a consultant migrate a lot of data from a Rally system into our Cloud Jira instance. In the process, dozens of custom fields were created. I suspect that many of them only have a few issues with actual data in the fields.
What's the best way for me to find which fields are actually being used - not just on a screen, which I already know, but actually have values in the field?
Ideally, I'd get a list of all custom fields, each with a count of how many issues have a value in that field.
Is there a plugin that would give me a report of this info? Or do I have to just write a separate JQL query for each field and see how many results come back?