What is Apache Spark?

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Apache Spark
Big Data
Hadoop
Spark
What is Spark SQL?
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Spark SQL is a Spark module for structured data processing. Unlike the basic Spark RDD API, the interfaces provided by Spark SQL provide Spark with more information about the structure of both the data and the computation being performed. Internally, Spark SQL uses this extra information to perform extra optimizations.


For more info check out the slideshow presentation found here.

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