Context quantifier transformation in XML query rewrite

Details Context quantifier transformation in XML query rewrite Context quantifier transformation in XML query rewrite

2007-01-16

2007-01-16

Pham, Khanh B. (Department: 2166)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

10717870

ABSTRACT:
An XML query compilation processor (20) includes an execution compiler (42) that transforms an XML query into an executable XML query plan (22). A query rewrite processor (34) performs query transformations on the XML query. Said query transformations include transforming an expression input (60) received by an expression (62) conditional upon a set of items defined by an output (64) of the expression (62) being independent of grouping of items in the expression input (60).

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