I was asked this question in one of my demos, and it was interesting one. we update xmin for new inserts with the current txid. now in a very high concurrent scenario where there are more than 2000 concurrent users trying to insert new data, will updating xmin value be a bottleneck? i know we should use pooling solutions to reduce concurrent connections but given we have enough resources to take care of spawning a new process for a new connection, Regards, Vijay