Mohlo by se vám také líbit

Více informací o knize Bulk Evaluation of XQuery

• Parametry knihy
• Anotace
• Oblíbené z jiného soudku

Nákupem získáte 179 bodů

Anotace knihy

XPath queries are usually translated into an algebra that combines traditional relational operators and XML-specific ones. In particular, FLWOR loops are represented using nest, unnest, join, and similar operators and their original nested-loop nature disappears, creating an opportunity for bulk evaluation and join reordering. In XQuery, two additional issues shall be handled -- tree construction and the presence of user-defined functions. The recursive nature of functions pushes the problem outside of the range of relational algebra. This book presents a novel evaluation framework based on an expanding network of relational operators, called R-program. In this environment, functions are evaluated in bulk instead of evaluating each call separately. Besides obvious advantages of bulk evaluation, R-programs also allow rearrangement of data flow across function boundaries. A set of program transformations employing these capabilities is described; together with rule-based static interprocedural analysis algorithms used to determine the applicability of the transformations.

Parametry knihy

• Plný název: Bulk Evaluation of XQuery
• Podnázev: An all-at-once approach to user-defined functions
• Autor: David Bednárek
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 172
• EAN: 9783659270239
• ID: 06885656
• Nakladatelství: LAP Lambert Academic Publishing
• Hmotnost: 274 g
• Rozměry: 220 × 150 × 10 mm
• Rok vydání: 2012

Oblíbené z jiného soudku

---

---

---