[atombender]

I've been looking for books that cover database implementation techniques such as this — the "memo" algorithm was new to me, but I'm also generally interested in query planning and optimization. Anyone got any recommendations? I started a thread: https://news.ycombinator.com/item?id=18410692.

[andydb]

This is not a book, but we did write up some documentation for developers that gives a nice overview of how the optimizer works:

https://github.com/cockroachdb/cockroach/blob/master/pkg/sql...

Might be worth a read if you're interested in implementation techniques.

[manigandham]

Posted in that thread: https://news.ycombinator.com/item?id=18411110

TLDR: check out CMU DB group at https://db.cs.cmu.edu/