How Query Engines Work an Introductory Guide by Andy Grove includes a new cover I made for the second edition of this book. We wanted to include a diagram of a query plan, which is a visual representation of a directionally acyclic graph of operators that perform processing steps on data. The yellow and black color palette is legible and conveys the accessibility of language within the book that demystifies the context of query engines. We address the ‘why’ of how they work because that is a specialized topic of discussion that benefits from simplified forms more than formal interpretations.
How Query Engines Work An Introductory Guide by Andy Grove