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Flexible Indexing Using Signatures

This paper discusses an implementation of database signatures. Previous work demonstrates how to use signatures to reduce base table storage requirements in a data warehouse thereby improving performance of database administration tasks as well as complex queries. This work builds upon prior work by showing how signatures enable efficient indexing. This efficient indexing strategy relies partly on abstraction and also on shifting the initial query access path to smaller tables serving as parents with foreign keys into larger transactional tables. The design shrinks the size of transactional tables and their possible indices. Moving database indexing to smaller tables reduces storage requirements and processing overhead associated with the indexes.