3d653d3fdc
This patch is twofold. First off, it provides a new schema allowing to improve the performance of `SqliteEventCacheStore` for 100_000 events from 6.7k events/sec to 284k events/sec on my machine. Second, it now assumes that `EventCacheStore` does NOT store invalid events. It was already the case, but the SQLite schema was not rejecting invalid event in case some were handled. It's now explicitely forbidden.
The file is empty.