This demo showcases a simple “Hello World” scenario for defining, updating, and querying a table by executing fundamental DDL, DML, and SQL query statements. PhoebeDB’s all-new kernel is seamlessly integrated with the latest PostgreSQL, ensuring that all external behaviors and interfaces remain fully aligned with standard PostgreSQL. In PhoebeDB, all standard PostgreSQL functionality is preserved without modification, and all PostgreSQL plugins are fully supported. By executing the phoebe_takeover() UDF on a native PostgreSQL table, the table and its associated objects—such as indexes—are seamlessly managed by PhoebeDB’s new engine. Once taken over, the table can be managed, manipulated, and queried exactly as if it were still a native PostgreSQL table, with no changes required.