Techniques of optimizing XQuery functions using actual...

Details Techniques of optimizing XQuery functions using actual... Techniques of optimizing XQuery functions using actual...

2011-03-22

2011-03-22

Dam, Tuan Q (Department: 2192)

Data processing: software development, installation, and managem

Software program development tool

Translation of code

C717S117000, C717S143000, C707S713000, C707S755000, C707S760000, C707S765000

Reexamination Certificate

active

07913241

ABSTRACT:
A method for optimizing functions is described. A query including an invocation of a function is received. A function declaration indicates that the function is associated with a first set of datatypes. At compile-time, static type-checking is performed on the query. During the static type-checking, a second set of datatypes is determined for the function. The second set of datatypes includes the datatype of each argument of the function that is specified in the invocation. The query is compiled, where compiling the query includes compiling the function with the second set of datatypes.

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