?????????????????? ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?

Have a snapshot of working transactions and generate it to WAL, without having to look ahead to bgwriter or checkpointer to log just one. This is helpful for rational decoding on standby, as sensible slot creation has to wait until eventually such a file is replayed over the standby.This operate is restricted to superusers and associates from the p