Allow pg_dump --statistics-only to dump foreign table statistics?

Hi,

I noticed that pg_restore_relation|attribute_stats() can restore statistics
for foreign tables, but pg_dump --statistics-only doesn't include them.
Is there a reason why pg_dump skips statistics for foreign tables?
Are there any risks or concerns around including them?

Sorry if this has already been discussed. I tried searching but couldn't
find the discussion. If there is one, I'd appreciate it if you could point
me to it.

In case we decide it's reasonable to allow dumping statistics for foreign
tables, I've attached a patch that implements this behavior.

Regards,

--
Fujii Masao
NTT DATA Japan Corporation