SilkRoute: trading between relations and XML
Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
XRel: a path-based approach to storage and retrieval of XML documents using relational databases
ACM Transactions on Internet Technology (TOIT)
Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
Database Management Systems
Optimizing Regular Path Expressions Using Graph Schemas
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Querying XML Views of Relational Data
Proceedings of the 27th International Conference on Very Large Data Bases
The VLDB Journal — The International Journal on Very Large Data Bases
Recursive XML Schemas, Recursive XML Queries, and Relational Storage: XML-to-SQL Query Translation
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
Efficient processing of XPath queries using indexes
Information Systems
Implementing XQuery 1.0: the Galax experience
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
The NEXT framework for logical XQuery optimization
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
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Queries on XML data are increasingly widespread in use and scope of application. However, optimization strategies are not yet as developed as they are for traditional DBMSs. Current strategies mostly involve logical or physical query plan optimization. We propose a novel optimization for XQuery using semantic information from the XML schema, where we rewrite a query into an equivalent query with fewer XPath expressions based on schema information. Our experimental results indicate that this optimization can result in substantial performance gains.