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:copyright: 2000 FORWISSFORWISSFORWISS1Processing Relational Queries Using a Multidimensional Access MethodVolker Markl Rudolf Bayerhttp://mistral.in.tum.deFORWISS(Bayerisches Forschungszentrum für Wissensbasierte Systeme):copyright: 2000 FORWISSFORWISSFORWISS2MISTRAL Project Management Prof. Rudolf Bayer, Ph.D. (FORWISS Knowledge Bases Group Head)Dr. Volker Markl (MISTRAL Project Leader, Deputy Research Group Head)MISTRAL Research Assistants Dipl. Inform. Robert FenkDipl. Inform. Roland Pierin
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© 2000 FORWISS
FORWISSFORWISS
1
Processing Relational Queries Using a Multidimensional Access
Method
Volker Markl
Rudolf Bayer
http://mistral.in.tum.de
FORWISS
(Bayerisches Forschungszentrum
für Wissensbasierte Systeme)
© 2000 FORWISS
FORWISSFORWISS
2
MISTRAL Project Management
Prof. Rudolf Bayer, Ph.D. (FORWISS Knowledge Bases Group Head)
Dr. Volker Markl (MISTRAL Project Leader, Deputy Research Group Head)
MISTRAL Research Assistants
Dipl. Inform. Robert Fenk
Dipl. Inform. Roland Pieringer
Frank Ramsak, M.Sc.
Dipl. Inform. Martin Zirkel
MISTRAL Master Students and Interns
Ralf Acker, Bulent Altan, Sonja Antunes, Michael Bauer, Sascha Catelin, Naoufel Boulila, Nils Frielinghaus,
Sebastian Hick, Stefan Krause, Jörg Lanzinger, Christian Leiter, Yiwen Lue, Stephan Merkel, Nasim Nadjafi, Oliver
Nickel, Daniel Ovadya, Markus Pfadenauer, Timka Piric, Sabine Rauschendorfer, Antonius Salim, Maximilian
Schramm, Michael Streichsbier, Anton Tichatschek
© 2000 FORWISS
FORWISSFORWISS
3
http://mistral.in.tum.de
Range Queries
Tetris Algorithm
© 2000 FORWISS
FORWISSFORWISS
4
1. Concept of the UB-Tree: Z-Regions
2. Insertion
3. Range Query Algorithm
4. Tetris Algorithm
5. Kernel Integration
6. Performance Overview
© 2000 FORWISS
FORWISSFORWISS
5
● Decision Support Relation (similar to TPC-D)
– Fact(customer, product, time, Sales)
➔ defines a three dimensional cube
● Point Query
– All sales for one customer for one specific product on
a certain day
●
Partial Match Query
– All sales for product X
●
Range Query
– All sales for year 1999 for a specific product group
for a specific customer group
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