On Mon, Jan 29, 2024 at 03:18:50PM -0500, Robert Haas wrote: > I'm wondering if what we need to do is run pg_walsummary on both > summary files in that case. If we just pick one or the other, how do > we know which one to pick?
Even if we do that, isn't it possible that none of the summaries will include the change? Presently, we get the latest summarized LSN, make a change, and then wait for the next summary file with a greater LSN than what we saw before the change. But AFAICT there's no guarantee that means the change has been summarized yet, although the chances of that happening in a test are probably pretty small. Could we get the LSN before and after making the change and then inspect all summaries that include that LSN range? -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
