There's also a difference between reading K&R and being comfortable with conventional C. Reading through source code from a mature project like PostgreSQL or th

There's also a difference between reading K&R and being comfortable with conventional C. Reading through source code from a mature project like PostgreSQL or the Linux kernel is very different from just knowing how malloc and free work. Being able to follow along in the PostgreSQL source code has been helpful when we see production behavior we don't expect.