Specifies recovering into a particular timeline. The value can be a numeric timeline ID or a special value. The value
current recovers along the same timeline that was current when the base backup was taken. The value
latest recovers to the latest timeline found in the archive, which is useful in a standby server.
latest is the default.
You usually only need to set this parameter in complex re-recovery situations, where you need to return to a state that itself was reached after a point-in-time recovery. See backup-timelines for discussion.