Accessing Geographical Metafiles through a Database Storage System

Title Accessing Geographical Metafiles through a Database Storage System
Author(s) S. Blott, A. Vckovski
Type inproceedings
Booktitle Proceedings of the Fourth International Symposium on Large Spatial Databases
Portland, Maine
Organization Institute for Information Systems, ETH Zurich
Month August
Year 1995


We describe a database storage extension for geographical metadata, discuss the retrieval requirements of such an extension, and describe the extension process itself. Our aims in undertaking the work reported were twofold: on the one hand we wanted to better understand the basic requirements of a geographical metadata manager, and on the other we wanted to ``stress-test'' the storage model of our prototype storage system (Concert). We discuss the following issues: What are the retrieval requirements of a geographical metadata manager? In what architectural contexts must such a manager operate? How can a database system be extended to meet both these classes of requirements? Characteristic of our approach is that such metadata remains primarily stored in files external to the database system, while indexing and query processing is carried out within the database system. We also report on our experiences in building such a prototype geographical metadata manager.
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