The driver is open-source and distributed under the PostgreSQL License (similar to BSD/MIT).
| Feature | Method/Class | Use Case | |---------|-------------|----------| | COPY support | PgConnection.getCopyAPI() | High-speed bulk import/export. | | LISTEN/NOTIFY | PGNotification , getNotifications() | Real-time eventing. | | Large Objects | LargeObject , LargeObjectManager | Binary data >1GB. | | Array types | java.sql.Array | PostgreSQL array ↔ Java array. | | JSON/JSONB | PGobject with type "json" | Native JSON handling. | | Composite types | PGobject | User-defined types. | | Logical replication | PgReplicationConnection | CDC (Change Data Capture). |