Saarland University Database Group
Lehrstuhl für Informationssysteme
Prof. Christoph Koch
Universität des Saarlandes
Fachrichtung 6.2 - Informatik
D-66041 Saarbrücken, Germany
Building 36.1, 2nd floor
Talk Announcement
FluXQuery: An Optimizing XQuery Processor for Streaming XML Data
Speaker: Stefanie Scherzinger
Abstract:
We introduce an extension of the XQuery language, FluX, that supports event-based query processing and the conscious handling of main memory buffers. Purely event-based queries of this language can be executed on streaming XML data in a very direct way. We then develop an algorithm that allows to efficiently rewrite XQueries into the event-based FluX language. This algorithm uses order constraints from a DTD to schedule event handlers and to thus minimize the amount of buffering required for evaluating a query. We discuss the various technical aspects of query optimization and query evaluation within our framework. This is complemented with an experimental evaluation of our approach.
Time and location:
At the
seminar "Querying and Storing XML",
Saarland University.
May 3rd, 5 p.m. (punctual/s.t.) in lecture hall 001 (building 45).
Additional Material:
For questions, contact scherzinger@cs.uni-sb.de.