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    2009
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    Data Expiration and Aggregate Queries
    14 years 2 months ago
    Data Expiration and Aggregate Queries
    Download  sunsite.informatik.rwth-aachen.de
    We investigate the space requirements for summaries needed for maintaining exact answers to aggregate queries over histories of relational databases. We show that, in general, a su...
    David Toman
    claim paper
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