In hopes of moving things along as we approach the v18 branch,
I went ahead and pushed Kuroda-san's patches (with a bit of
further editorialization). AFAICS that allows closing out
the concerns raised by Noah, so I've marked that open item
done. However, I added a new open item about how the
040_pg_createsubscriber.pl test is slow and still unstable.
regards, tom lane