Summary  
This chapter covers how to query distributed datasets using PySpark’s DataFrame and SQL APIs, including filtering, selection, aggregation, and joining operations.  

General domain of usage  
Big data analytics

This course will help those who want to get some of Big Data basics, including different types of distributed computings and such programming paradigm as MapReduce. Also, main part of the course will be devoted to such framework as Apache Spark and it's high-level API PySpark using Python programming language.

Queries in PySpark