PG for Java Developers

In the process of migrating a loaded service from Oracle to pg, I had to understand the intricacies of working with the latest Java. Various nuances of configuring Java pg-driver, Hikari and Spring were discovered, which, as it turned out, many developers do not know / forget / find out through pain and suffering in the process of service operation later.

In this talk, I collected all the useful things that helped to solve one problem or another.

PS: We won't talk about Hibernate in this talk.