On Wed, Apr 15, 2020 at 4:57 PM Robert Haas <robertmh...@gmail.com> wrote: > I seem to recall Simon raising this issue at the time that the patch > was being discussed, and I thought that we had eventually decided that > it was OK for some reason. But I don't remember the details, and it is > possible that we got it wrong. :-(
It must be unreliable because it's based on something that is known to be unreliable: https://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/access/nbtree/README;h=c5b0a30e4ebd4fe3bd4a6f8192284c452d1170b9;hb=refs/heads/REL_12_STABLE#l331 Also, the commit message of 6655a729 says that nbtree has had this problem "since time immemorial". I am planning to work on that problem, eventually. -- Peter Geoghegan
