Hi, I tested the latest v3 patch on PostgreSQL 20devel. The patch applied cleanly, and the build and installation completed without any issues. Since the patch adds a new built-in function, I created a fresh cluster with initdb before testing. Before applying the patch, pg_hosts_file_rules() was not available, and calling it resulted in a "function does not exist" error. After applying the patch, rebuilding, and starting the new cluster, I confirmed that the pg_hosts_file_rules() function is present. Both \df pg_hosts_file_rules and SELECT * FROM pg_hosts_file_rules(); worked as expected. With an empty pg_hosts.conf, the function returned zero rows, which is the expected behavior. I also verified that the pg_hosts_file_rules view works correctly.
I didn't notice any issues during my testing. Regards, solai
