Abstract: An elastic parallel database system where metadata is specified out-of-band during database operations via a set of augmentation rules. The rules are used to augment or modify commands received, and indicate whether they are to be used for specific connections on which they are received, for all client connections, or some other scope.

Abstract: An elastic parallel database system where metadata is specified out-of-band during database operations via a set of augmentation rules. The rules are used to augment or modify commands received, and indicate whether they are to be used for specific connections on which they are received, for all client connections, or some other scope.

Abstract: Methods and systems for Elastic Parallel Relational Database Management Systems. More particularly, systems, methods, technologies and mechanisms are provided herein for providing virtualization of data in a database through the mechanism of adaptive multi-client database objects. Applications define databases and objects that are either client-private, multi-client or system-wide. Transparent manipulation of these objects is provided including addition, querying, deletion, and truncation of data, and seamless manipulation of the objects themselves through creation, modification, and deletion. Schema decorations and query modification techniques ensure each client application only sees the data that it should be seeing.