July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Set theory/relational transformations
Set theory/relational transformations are transformation functions, which handle transformations like Joins of datasets and other relational algebraic functionality such as cogroup. These functions work by applying the transformational logic to existing RDDs and generating a new RDD.
Examples of such transformations are:
- cogroup
- join
- subtractByKey
- fullOuterJoin
- leftOuterJoin
- rightOuterJoin
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