Extending XQuery with Collections, Indexes, and Integrity Constraints

Cezar Andrei, Matthias Brantner, Daniela Florescu, David Graf, Donald Kossmann, Markos Zaharioudakis


The standard XQuery language lacks the ability to define and manipulate persistent artifacts like collections, indexes, and integrity constraints. This paper introduces a first attempt to standardize the syntax and semantics of such extensions, and it studies the implications on the static context, dynamic context and processing model of XQuery while dealing with persistent data. The paper presents example modules that show how collections, indexes, and integrity constraints are declared, created, maintained, or accessed.


Keywords: XQuery (XML Query)0.9;


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