How to filter issues which don't have a certain parent name?

[Daniel Santos]

Hi Giacomo,

     you could use the JQL search: https://confluence.atlassian.com/display/JIRA/Advanced+Searching

    The search could be something like this:

    project = "projectName" and issuetype=Sub-task AND parent not in ("XYZ-123")

[Volodymyr Krupach]

You can install Script Runner and use subtasksOf JQL function: https://jamieechlin.atlassian.net/wiki/display/GRV/Scripted+JQL+Functions#ScriptedJQLFunctions-subtasksOf(Subquery)

Taking into account that by "name" you actually mean issue summary, the JQL will be like:

issueFunction in subtasksOf(summary !~ "Test name")