At Tue, 11 Jun 2024 09:27:20 +0900, Michael Paquier <mich...@paquier.xyz> wrote in > On Thu, Jun 06, 2024 at 03:19:20PM +0900, Kyotaro Horiguchi wrote: > > So, I believe the attached small patch fixes the behavior. I haven't > > come up with a good test script for this issue. Something like > > 026_overwrite_contrecord.pl might work, but this situation seems a bit > > more complex than what it handles. > > Hmm. Indeed you will not be able to reuse the same trick with the end > of a segment. Still you should be able to get a rather stable test by > using the same tricks as 039_end_of_wal.pl to spawn a record across > multiple pages, no?
With the trick, we could write a page-spanning record, but I'm not sure we can control the behavior of XLogBackgroundFlush(). As Amit suggested, we have the option to create a variant of the function that guarantees flushing WAL until the end. regards. -- Kyotaro Horiguchi NTT Open Source Software Center
