Minimization of tree pattern queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Tree pattern query minimization
The VLDB Journal — The International Journal on Very Large Data Bases
From tree patterns to generalized tree patterns: on efficient evaluation of XQuery
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
WebContent: efficient P2P Warehousing of web data
Proceedings of the VLDB Endowment
Tree graph views for a distributed pervasive environment
NBiS'07 Proceedings of the 1st international conference on Network-based information systems
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Tree Pattern Queries [7,6] are now well admitted for modeling parts of XML Queries. Actual works only focus on a small subpart of XQuery specifications and are not well adapted for evaluation in a distributed heterogeneous environment. In this paper, we propose the TGV (Tree Graph View) model for XQuery processing. The TGV model extends the Tree Pattern representation in order to make it intuitive, has support for full untyped-XQuery queries, and for optimization and evaluation. Several types of Tree Pattern are manipulated to handle all XQuery requirements. Links between Tree Patterns are called hyperlinks in order to apply transformations on results. The TGV has been implemented in a mediator system called XLive.