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7666 The Dodo Query Flattening System
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van Ruth, J. and Fokkinga, M.M. and van Keulen, M. (2004) The Dodo Query Flattening System. Technical Report TR-CTIT-04-41, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625

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Official URL: http://www.ub.utwente.nl/webdocs/ctit/1/0000010d.pdf

Abstract

Analytical query processing over complex objects often suffers from disappointing performance due to excessive use of nested-loop (element at a time) evaluation. Storing the data in a flattened form enables collection based processing (set at a time), gaining performance at the cost of having to write more complicated queries. This report proposes Dodo, an approach to automatic translation of queries from the complex objects domain into set-at-a-time operations against data stored in a flattened form.

Item Type:Internal Report (Technical Report)
Research Group:EWI-DB: Databases
Research Program:CTIT-NICE: Natural Interaction in Computer-mediated Environments
Additional Information:Imported from CTIT and EWI/DB PMS [db-utwente:tech:0000003620]
ID Code:7666
Deposited On:30 November 2006
Refereed:No
More Information:statistics

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