Adrian Klaver <adrian.klaver@aklaver.com> writes:
> I can not find gist_stratnum_btree in:
> https://www.postgresql.org/docs/18/btree-gist.html
> or in the source.
> How did it end up in the database?
See commit 32edf732e. Perhaps that renaming should not have been done
post-beta1, but that's where we are.
regards, tom lane