title: PostgreSQL Namespaces (pg_namespace catalog)
body: <p>In an effort to find some namespace-like structure in PostgreSQL that's nestable (so not schemas), I stumbled upon this page in the official documentation referencing a catalog to define namespaces in. <a href="https://www.postgresql.org/docs/current/catalog-pg-namespace.html" rel="nofollow noreferrer">Link to documentation page</a>. It's not obvious to me what a system catalog is in PGSQL, but is this something I can interact with and create namespaces on my own? I'd love to have a nestable name-scoping tool.</p>
  <p>Future thanks.</p>