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Large Scale and Big Data
book

Large Scale and Big Data

by Sherif Sakr, Mohamed Gaber
June 2014
Intermediate to advanced content levelIntermediate to advanced
636 pages
23h 13m
English
Auerbach Publications
Content preview from Large Scale and Big Data
156 Large Scale and Big Data
Map: Collection of data items where each item can be looked up by an
associated key.
'name' 'John'
'knows'
('Sarah')
('Bob')

Operators: A Pig Latin program consists of a sequence of instructions where
each instruction performs a single data transformation. We shortly introduce those
Pig Latin operators that we used for our translation. The interested reader can nd a
more detailed description of Pig Latin in [16].
LOAD deserializes the input data and maps it to the data model of Pig
Latin. The user can implement a User Dened Function (UDF) that denes
how to map an input tuple to a Pig Latin tuple as shown in the following
example. The result of LOAD is a bag of tuples.
people = LOAD 'input' USING ...
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Publisher Resources

ISBN: 9781466581500