Query Optimization by Indexing in the ODRA OODBMS

Authors:
Tomasz Kowalski;Michał Chromiak;Kamil Kuliberda;Jacek Wiślicki;Radosław Adamus;Kazimierz Subieta
Affiliations:
Technical University of Lodz, Stefanowskiego 18/22, 90-924 Lodz, Poland;Institute of Computer Science, Maria Curie Sklodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland;Technical University of Lodz, Stefanowskiego 18/22, 90-924 Lodz, Poland;Technical University of Lodz, Stefanowskiego 18/22, 90-924 Lodz, Poland;Technical University of Lodz, Stefanowskiego 18/22, 90-924 Lodz, Poland;Polish-Japanese Institute of Information Technology, Koszykowa 86, 02-008 Warsaw, Poland
Venue:
Annales UMCS, Informatica
Year:
2009

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Abstract

We present features and samples of use of the index optimizer module which has been implemented and tested in the ODRA prototype system. The ODRA index implementation is based on linear hashing and works in a scope of a standalone database. The solution is adaptable to distributed environments in order to optimally utilize data grid computational resources. The implementation consists of transparent optimization, automatic index updating and management facilities.