If you've not seen usql before, it's a universal command-line client for SQL databases (and now also Cassandra), modeled on psql. usql makes it easy to work from the command-line, in a simple and consistent way across any database and on any platform (Windows, macOS, Linux). usql is written in Go, and provides things like syntax highlighting and compatibility with databases other than PostgreSQL (see below for the list of the supported databases).
Via Hacker News: