Oddbean new post about login | logout I see thats good so it deletes just oldest events? or least used events by some metric somehow?
it keeps an record of the last time each event was returned to a client, and it removes the ones that were least recently returned to clients
i tried to justify not keeping this record but ultimately, events have their own "created timestamp" so that's there anyway, and you could maybe implement a GC that just purges by oldest created_at but that would not really be practical for a lot of use cases