In our JIRA instance there's a lot of unused filter subscriptions that belong to resigned users. Since these users are resigned, each time filter subscriptions run, JIRA attempts to send e-mail to a bunch of non-existent e-mail addresses.
Therefore I plan to (bulk) delete these unwanted subscriptions from the database.
delete from filtersubscription where id in (...);
This will remove filter subscriptions, but where are the cron expressions stored? I don't see cron expressions or subscription interval stored in the same table. Don't they need to be deleted?