Andres Freund <and...@anarazel.de> writes: > Somewhat of a tangent: I've previously wondered if we should have a small > hash-table based clog cache. The current one-element cache doesn't suffice in > a lot of scenarios, but it wouldn't take a huge cache to end up filtering most > clog accesses.
I've wondered about that too. The one-element cache was a good hack in its day, but it looks a bit under-engineered by our current standards. (Also, maybe it'd be plausible to have a one-element cache in front of a small hash?) regards, tom lane