Query processing of streamed XML data
Proceedings of the eleventh international conference on Information and knowledge management
Uniprocessor Garbage Collection Techniques
IWMM '92 Proceedings of the International Workshop on Memory Management
On the memory requirements of XPath evaluation over XML streams
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Efficient evaluation of XQuery over streaming data
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Semantic query optimization for XQuery over XML streams
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Accelerating queries by pruning XML documents
Data & Knowledge Engineering
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
On the complexity of nonrecursive XQuery and functional query languages on complex values
ACM Transactions on Database Systems (TODS)
SPEX: Streamed and Progressive Evaluation of XPath
IEEE Transactions on Knowledge and Data Engineering
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Stream firewalling of xml constraints
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
StreamTX: extracting tuples from streaming XML data
Proceedings of the VLDB Endowment
Processing XPath queries with forward and downward axes over XML streams
Proceedings of the 13th International Conference on Extending Database Technology
XQuery optimization based on program slicing
Proceedings of the 20th ACM international conference on Information and knowledge management
Energy and Latency Efficient Access of Wireless XML Stream
Journal of Database Management
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In this demonstration, we present the main-memory based streaming XQuery engine GCX which implements novel buffer management strategies that combine static and dynamic analysis to keep main memory consumption low. Depending on the progress made in query evaluation, memory buffers are dynamically purged and minimized. In this demo, we show the various stages in evaluating a practical fragment of XQuery with GCX. We present the major steps in static analysis and demonstrate the mechanisms of dynamic buffer minimization. We apply our system to XML streams and demonstrate the significant impact of our approach on reducing main memory consumption and running time.