Yet another rant about object-oriented programming, but mainly a collection of ideas stolen from functional programming to improve it.
This blog post has helped me clean up my postgres development environment on Mac. So making a copy!
How completely uninstall PostgreSQL 9.X on Mac OSX
This article is referenced from stackoverflow:
If installed PostgreSQL with homebrew , enter brew uninstall postgresql
If you used the EnterpriseDB installer , follow the following step.