PostgreSQL Operations

Distro support

Two-family skill. The big difference is initialization and the data / config directory layout. On RHEL the cluster is not auto-created — you must run postgresql-setup --initdb (RHEL 9 Recipe 38), and the config lives under the data dir. On Debian/Ubuntu the package auto-creates a cluster and config lives under /etc/postgresql/<ver>/<cluster>/. The body uses RHEL paths (grounded in Recipe 38); Debian paths are in the matrix and references.