Querying Heterogeneous Object Views of a Relational Database
نویسندگان
چکیده
We present the query processing algorithm for the Penguin system. Penguin supports multiple object views on a relational database, so that data may be shared by applications with heterogeneous object schemata. Penguin also o ers an interface for the C++ language. We have developed a query processing algorithm for querying composite object views. The query algorithm takes a query on a composite object view, and decomposes it into partial queries on the relational database. The nal query result is composed from those partial results. We also discuss an optimization for reducing the volume of temporary data created in query processing.
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