On 23rd of March, Heikki Linnakangas committed patch: Add pg_rewind, for re-synchronizing a master server after failback. Earlier versions of this tool were available (and still are) on github. Thanks to Michael Paquier, Alvaro Herrera, Peter Eisentraut, Amit Kapila, and Satoshi Nagayasu for review.

On 13th of December, Heikki Linnakangas committed patch: Allow a streaming replication standby to follow a timeline switch. Before this patch, streaming replication would refuse to start replicating if the timeline in the primary doesn't exactly match the standby. The situation where it doesn't ...

There are several approaches on replication/failover - you might have heard of Slony, Londiste, pgPool and some other tools. WAL Replication is different from all of them in one aspect - it doesn't let you query slave database (until 9.0, in ...