Values.UpgradeTargetSourceThe version of the database engine that a DB instance can be upgraded to.
type nonrec t = {engine : String_.t option;The name of the upgrade target database engine.
*)engineVersion : String_.t option;The version number of the upgrade target database engine.
*)description : String_.t option;The version of the database engine that a DB instance can be upgraded to.
*)autoUpgrade : Boolean.t option;A value that indicates whether the target version is applied to any source DB instances that have AutoMinorVersionUpgrade set to true.
*)isMajorVersionUpgrade : Boolean.t option;A value that indicates whether a database engine is upgraded to a major version.
*)supportsGlobalDatabases : BooleanOptional.t option;A value that indicates whether you can use Neptune global databases with the target engine version.
*)}