In our Jira Cloud instance, we have a custom field called "Parent Link" which allows to set another Jira issue as a parent issue.
I am trying to create a JQL for my project where I can identify all issues that do not have a "Parent Link" set.
My JQL looks something like this:
project = "myproject" AND issuetype = Epic AND "Parent Link" is EMPTY
I tried "IS EMPTY", "= Null" and multiple other variations but the query does not seem to work. Is there a solution to this?