On Sun, Feb 06, 2022 at 01:01:41PM +0530, Bharath Rupireddy wrote: > With the start position as an option, users can just provide the LSN > from which they want to stream the WAL, in the above case, it can be > from primary's latest checkpoint LSN.
This still strikes me as a dangerous thing to have, prone to errors with a bunch of base backups wasted if one does a mistake as it would be very easy to cause holes in the WAL stored, until one has to redeploy from a base backup in urgency. This kind of control is provided by replication slots for new locations, and the current archive location if anything is stored, so I would leave it at that. On top of that, this kind of control is prone to more race conditions with the backend, as a concurrent checkpoint could make the LSN you are looking for irrelevant. -- Michael
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