The Dodo Query Flattening System

J. van Ruth; M.M. Fokkinga; Maurice van Keulen

The Dodo Query Flattening System

J. van Ruth, M.M. Fokkinga, Maurice van Keulen

Databases (Former)

Research output: Book/Report › Report › Professional

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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.

Original language	Undefined
Place of Publication	Enschede
Publisher	Centre for Telematics and Information Technology (CTIT)
Number of pages	51
Publication status	Published - Oct 2004

Publication series

Name	CTIT Technical Report Series
No.	04-41
ISSN (Print)	1381-3625

Keywords

IR-49193
METIS-221309
DB-XMLDB: XML DATABASES
EWI-7666
DB-PRJDODO: FLATTENING QUERIES OVER NESTED DATA TYPES

Access to Document

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Final published version, 454 KB

Cite this

van Ruth, J., Fokkinga, M. M., & van Keulen, M. (2004). The Dodo Query Flattening System. (CTIT Technical Report Series; No. 04-41). Enschede: Centre for Telematics and Information Technology (CTIT).

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