Many of us who work with relational databases don’t think too much about SQL. We use it, of course, but it’s easy to forget that SQL — like other languages — has grown, evolved, and improved over the years.  There are many features included in modern SQLs, and PostgreSQL has included many of them in its recent releases. In this talk, Markus Winand describes many of these features — how to use them, and also when to use them.