Fujii Masao wrote:
In the current Synch Rep patch, the standby cannot catch up with the
primary which has a bigger timeline.

That would only happen if you've performed an archive recovery in the primary. If you've done PITR in the primary, I don't think there's any guarantee that it's even possible to catch up the standby. The standby might already have replayed a WAL file from an earlier timeline, that isn't part of the history of the bigger timeline.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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