TY - GEN
T1 - Structured materialized views for XML queries
AU - Arion, Andrei
AU - Benzaken, Véronique
AU - Manolescu, Ioana
AU - Papakonstantinou, Yannis
N1 - Publisher Copyright:
Copyright 2007 VLDB Endowment, ACM.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, where both the query and the views are described by a tree pattern language, appropriately extended to capture a large XQuery subset. The pattern language features optional nodes and nesting, allowing to capture the data needs of nested XQueries. The language also allows describing storage features such as structural identifiers, which enlarge the space of rewritings. We study pattern containment and equivalent rewriting under the constraints expressed in a structural summary, whose enhanced form also entails integrity constraints. Our approach is implemented in the ULoad [7] prototype and we present a performance analysis.
AB - The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, where both the query and the views are described by a tree pattern language, appropriately extended to capture a large XQuery subset. The pattern language features optional nodes and nesting, allowing to capture the data needs of nested XQueries. The language also allows describing storage features such as structural identifiers, which enlarge the space of rewritings. We study pattern containment and equivalent rewriting under the constraints expressed in a structural summary, whose enhanced form also entails integrity constraints. Our approach is implemented in the ULoad [7] prototype and we present a performance analysis.
M3 - Conference contribution
AN - SCOPUS:85011031897
T3 - 33rd International Conference on Very Large Data Bases, VLDB 2007 - Conference Proceedings
SP - 87
EP - 98
BT - 33rd International Conference on Very Large Data Bases, VLDB 2007 - Conference Proceedings
A2 - Gehrke, Johannes
A2 - Koch, Christoph
A2 - Garofalakis, Minos
A2 - Aberer, Karl
A2 - Kanne, Carl-Christian
A2 - Neuhold, Erich J.
A2 - Ganti, Venkatesh
A2 - Klas, Wolfgang
A2 - Chan, Chee-Yong
A2 - Srivastava, Divesh
A2 - Florescu, Dana
A2 - Deshpande, Anand
PB - Association for Computing Machinery, Inc
T2 - 33rd International Conference on Very Large Data Bases, VLDB 2007
Y2 - 23 September 2007 through 27 September 2007
ER -