Hi,
On 2026-03-05 14:56:13 -0500, Melanie Plageman wrote:
> Today Andres and I noticed that heap_{update,insert,delete}() don't
> register the VM buffer when they are clearing the VM. I was under the
> impression that any buffers modified needed to be registered in the
> WAL record. Without which, you'll never do an FPI. It seems like this
> could cause checksum failures. What are we missing?
Besides checksum errors, I was also worried that this would break
pg_rewind. But it seems we're saved by pg_rewind only parsing the WAL for
changes to the main fork.
But it does seem like it could be a problem for incremental backup /
walsummarizer?
Greetings,
Andres Freund
