Yeah, it was relatively infrequent in that particular workload--dramatically less than PostgreSQL's "repeatable read" exhibited. These histories are roughly 15K

Yeah, it was relatively infrequent in that particular workload--dramatically less than PostgreSQL's "repeatable read" exhibited. These histories are roughly 15K successful transactions long--see the stats field in results.edn. I'm hesitant to make strong statements about frequency, because I suspect this kind of thing depends strongly on workload, but I would hazard a gueesssss that it's not super common.