David,
> Let's imagine we're taking filesystem snapshots each day by whatever
> means. We're also archiving xlogs, but only have space for 48 hours'
> worth. Now we want to recover to 3 days ago, but there are no WALs
> from that time, so we do a crash recovery from the filesystem
> snapshot. Doing continuous archiving from this conflicts with the
> existing WALs, which we solve by creating a new timeline.
How is this different from just changing the recovery_command?
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
