Evidence-backed facts
- PostgreSQL publishes versioned manuals and identifies PostgreSQL 18 as the current supported manual while separately listing beta and archived versions. informative
- SQL queries and transaction semantics are versioned behavior; a connector must bind its claims and tests to the selected server and manual version. informative
- Writes occur within transaction semantics and still require database, schema, table, row, and operation privileges configured by the operator. informative
- Documentation availability does not create a database, grant authentication, authorize a mutation, or prove durability, replication, backup, or query success. informative