On Fri, May 06, 2022 at 08:52:45AM -0700, Nathan Bossart wrote: > I was looking at other changes in this area (e.g., 3c64dcb), and now I'm > wondering if we actually should invalidate the minRecoveryPoint when the > control file no longer indicates archive recovery. Specifically, what > happens if a base backup of a newly promoted standby is used for a > point-in-time restore? If the checkpoint location is updated and all > previous segments have been recycled/removed, it seems like the > minRecoveryPoint might point to a missing segment.
A new checkpoint is enforced at the beginning of the backup which would update minRecoveryPoint and minRecoveryPointTLI, while we don't a allow a backup to finish if it began on a standby has just promoted in-between. -- Michael
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