>Restoring content of FDW table via pg_restore or psql can be dangerous - there I see a risk, and can be nice to allow it only >with some form of safeguard.
>
>I think so important questions is motivation for dumping FDW - a) clonning (has sense for me and it is safe), b) real backup >(requires writeable FDW) - has sense too, but I see a possibility of unwanted problems.
What about providing a list of FDW servers instead of an all or nothing option? In that way the user really has to do a conscious decision to dump the content of the foreign tables for a specific server, this would allow distinction if multiple FDW are being used in the same DB. Also I think it is responsability of the user to know if the FDW that are being used are read-only or not.
Cheers
Luis M Carril