PostgreSQL Foreign Data Wrappers Hide a Second Credential Boundary
PostgreSQL Foreign Data Wrappers Hide a Second Credential Boundary A query against a foreign table can look like an ordinary PostgreSQL operation. Behind that table, postgres_fdw may open a second database connection using a username and password stored in a user mapping. This boundary is easy to miss during access review because the local role and the remote account are different identities with…
We haven't written up this one. Dev.to has the full story — the link below goes straight to it.