Hello, Peter!
>
> I also relocated the code that sets so.drop_pin from
> _bt_preprocess_keys to btrescan. That seems like the more logical
> place for it.
>
I was rebasing [0] and noticed dropPin is not initialized in
btbeginscan, which seems to be suspicious for me.
Is it intended?
[0]: https://commitfest.postgresql.org/patch/5151/