I own the book and would agree -- only reason I didn't suggest this is that the areas on query-planning and optimization are a bit thin. IMO it's great if you

I own the book and would agree -- only reason I didn't suggest this is that the areas on query-planning and optimization are a bit thin. IMO it's great if you want a holistic view of building a query engine start-to-finish with just enough detail to build a basic implementation. I probably learned more from the ~100 pages in this book than I did from most other sources.