JQL issues related to subtask which parent has a specific epic link

[Klara Górska]

How do i find issues that are realed to a subtask which parent has an epic link = X?

[Bill Sheboy]

Hi @Klara Górska -- Welcome to the Atlassian Community!

I believe nested queries like that are not possible with out-of-the-box Jira features of JQL.  Please work with your site admin to investigate marketplace addon apps if you need this capability often.

If you need it infrequently, or only once, you could perform the query piece by piece, exporting the results to spreadsheets, and perform the field matching to join issue relationships outside of Jira.

Kind regards,
Bill