One main issue with MySQL replication is that the slave is single threaded. This can cause replication lag.
How does Postgresql handle replication? Does it (or add-on such as slony-I) allow multi-threaded slaves?
In general, what are the pros and cons regarding MySQl & Postgresql replication? I frequently hear that MySQL replication is better than postgresql replication. Is that a fair statement? How exactly is it better?