PG Bug reporting form <noreply(at)postgresql(dot)org> writes:
> Let's create a trigger on a remote server that uses different functions for
> different users. postgres_fdw cannot perform an insert in this case. And the
> remote server may be a production server, where there is no access to change
> the trigger code so that it uses an explicit schema specification!
This is a bug in the trigger function, not in postgres_fdw.
regards, tom lane