Bruce Momjian <bruce@momjian.us> writes:
> If we are going down this route, is there any thought of handling
> earchdistance the same way?
> https://www.postgresql.org/message-id/20180330205229.GS8476@momjian.us
AFAICS there are no internal-to-the-C-code search path dependencies
in earthdistance.c, so it's not the same problem.
regards, tom lane