I am trying to find a way to fetch the last-known closed date of a ticket and retrospectively populate a 'closed date' field so that I can calculate how many days a ticket was open in throughout it's whole lifespan.
I need to be able to add the data column as part of my filter results. Ideal solution:
issuetype | key | summary | created | date closed
Note: We are not able to install random plug-ins but we do have access to Script Runner