The second phase of the improvements done in PostgreSQL 16 for authentication configuration involve pg_ident.conf, mainly with this commit: commit: efb6f4a4f9b627b9447f5cd8e955d43a7066c30c author: Michael Paquier <michael@paquier.xyz> date: Fri, 20 Jan 2023 11:21:55 +0900 Support the same patterns for pg-user in pg_ident.conf as in pg_hba.conf While pg_hba.conf has support for non-literal username matches, and this commit extends the capabilities that are supported for the PostgreSQL user lis...