Abstract.
The explosion in complex multimedia content makes it crucial for database systems to support such data efficiently. This paper argues that the “blackbox” ADTs used in current object-relational systems inhibit their performance, thereby limiting their use in emerging applications. Instead, the next generation of object-relational database systems should be based on enhanced abstract data type (E-ADT) technology. An (E-ADT) can expose the semantics of its methods to the database system, thereby permitting advanced query optimizations. Fundamental architectural changes are required to build a database system with E-ADTs; the added functionality should not compromise the modularity of data types and the extensibility of the type system. The implementation issues have been explored through the development of E-ADTs in Predator. Initial performance results demonstrate an order of magnitude in performance improvements.
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Received January 1, 1998 / Accepted May 27, 1998
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Seshadri, P. Enhanced abstract data types in object-relational databases. The VLDB Journal 7, 130–140 (1998). https://doi.org/10.1007/s007780050059
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DOI: https://doi.org/10.1007/s007780050059