This one was super useful for me https://www.amazon.es/PostgreSQL-High-Performance-Gregory-Smith/dp/184951030X https://www.amazon.es/PostgreSQL-High-Performanc

This one was super useful for me https://www.amazon.es/PostgreSQL-High-Performance-Gregory-Smith/dp/184951030X https://www.amazon.es/PostgreSQL-High-Performance-Gregory-Sm... I think that they have a newer edition for postgres 10