The Open Information Science Journal

2009, 2 : 2-9
Published online 2009 February 26. DOI: 10.2174/1874947X00902010002
Publisher ID: TOISCIJ-2-2

Native Temporal Slicing Support for XML Databases

F. Mandreoli , R. Martogli and E. Ronchetti
DII - Università di Modena e Reggio Emilia, I-41100 Modena, Italy.

ABSTRACT

XML databases, providing structural querying support, are becoming more and more popular. As we know, XML data may change over time and providing an efficient support to queries which also involve temporal aspects is still an open issue. In this paper we present our native Temporal XML Query Processor, which exploits an ad-hoc temporal indexing scheme relying on relational approaches and a technology supporting temporal slicing. As we show through an extensive experimental evaluation, our solution achieves good efficiency results, outperforming stratum-based solutions when dealing with time-related application requirements while continuing to guarantee good performance in traditional scenarios.

Keywords:

XML, native temporal XML query processor, temporal index, holistic twig join.