You can now use the CREATE CONNECTION, ALTER CONNECTION SET OPTIONS, and DROP CONNECTION data definition language (DDL)...

You can now use the CREATE CONNECTION, ALTER CONNECTION SET OPTIONS, and DROP CONNECTION data definition language (DDL) statements to manage Cloud resource connections with GoogleSQL. Additionally, you can now use the connection user type and PROJECT resource type with GRANT and REVOKE data control language (DCL) statements to manage connection and project access. These features are generally available (GA).