The Internals of Spark SQL (Apache Spark 2.4.5)

Welcome to The Internals of Spark SQL online book!

I’m Jacek Laskowski, a freelance IT consultant, software engineer and technical instructor specializing in Apache Spark, Apache Kafka, Delta Lake and Kafka Streams (with Scala and sbt).

I’m very excited to have you here and hope you will enjoy exploring the internals of Spark SQL as much as I have.

I write to discover what I know.
— Flannery O'Connor
I’m also writing other books in the "The Internals Of" series about Apache Spark, Spark Structured Streaming, Delta Lake, Apache Kafka and Kafka Streams.

Expect text and code snippets from a variety of public sources. Attribution follows.

Now, let me introduce you to Spark SQL and Structured Queries.

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