On Sat, Jun 4, 2022 at 8:59 AM James Coleman <jtc...@gmail.com> wrote: > A quick background refresher: after promoting a standby rewinding the > former primary requires that a checkpoint have been completed on the > new primary after promotion. This is correctly documented. However > pg_rewind incorrectly reports to the user that a rewind isn't > necessary because the source and target are on the same timeline.
Is there anything intrinsic to the mechanism of operation of pg_rewind that requires a timeline change, or could we just rewind within the same timeline to an earlier LSN? In other words, maybe we could just remove this limitation of pg_rewind, and then perhaps it wouldn't be necessary to determine what the new timeline is. -- Robert Haas EDB: http://www.enterprisedb.com
