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Query Processing in a Symmetric Parallel Environment (Classic Reprint) - Softcover

 
9781332092970: Query Processing in a Symmetric Parallel Environment (Classic Reprint)

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Excerpt from Query Processing in a Symmetric Parallel Environment

Assume each relation partitioned on A attribute using hash function. Joining S with T first and then R wi requires three repartitionings, since 5 is already partit on A.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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9780656021512: Query Processing in a Symmetric Parallel Environment (Classic Reprint)

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ISBN 10:  0656021519 ISBN 13:  9780656021512
Publisher: Forgotten Books, 2019
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Dennis Shasha
Published by Forgotten Books, 2018
ISBN 10: 1332092977 ISBN 13: 9781332092970
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Paperback. Condition: New. Print on Demand. This book addresses query processing in a database machine consisting of 11 nodes connected by high-bandwidth networks, theorizing that symmetric parallel architecture is ideal for high-speed relational query processing. Each node comprises a processor, random access memory, and a slower but much larger memory. To approach optimal speedup on this hardware architecture, relations are partitioned roughly evenly among the processors. The author explores optimizing multi-join queries under this data distribution strategy, where optimization entails minimizing the number of times relations are redistributed during a query. They find that this optimization problem, while NP-complete for general queries, is linear for a subclass of tree queries. This book will intrigue database engineers seeking to accelerate relational query processing, and computer scientists engaged in database theory and algorithm design. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781332092970_0

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ISBN 10: 1332092977 ISBN 13: 9781332092970
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Published by Forgotten Books, 2019
ISBN 10: 1332092977 ISBN 13: 9781332092970
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781332092970

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