| Bibliography | Watzal, Bernd: Konzepte zur Abschätzung von Selektivität und Ausführungskosten für User-Defined table Operators.
University of Stuttgart, Faculty of Computer Science, Student Thesis No. 1772 (2000).
56 pages, german.
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| CR-Schema | H.2.4 (Database Management Systems)
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| Keywords | object-relational database system, user-defined function |
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| Abstract | User-defined table operators are a new concept for object-relational database systems. They allow users to define functions that have one or more input tables as input and that produce a result table as output. Because of the generality of this approach any database operator can be implemented as the user-defined table operators. This thesis give information on how user-defined table operators can be integrated into the database system prototype MIDAS. Furthermore, some concepts for giving hints to the database optimizer on the behavior of a user-defined table operator are given. This information is essential to allow optimization of query plans that contain such operators.
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Full text and
other links | PDF (658488 Bytes)
Access to students' publications restricted to the faculty due to current privacy regulations |
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| Contact | rantzau@informatik.uni-stuttgart.de |
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| Department(s) | University of Stuttgart, Institute of Parallel and Distributed High-Performance Systems, Applications of Parallel and Distributed Systems
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| Project(s) | MIDAS
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| Entry date | November 29, 2000 |
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