If you’ve ever used \edit with PostgreSQL you’ve probably noticed that it’s not using syntax highlighting that your favorite editor most likely supports. I’ve wondered why this is for a while, Postgres uses vim on my system which supports robust highlighting among other things. I had a few things suggested to me, such as setting putting settings in my .vimrc, most of which would have forced filetype=sql on files that weren’t sql, and would have been active outside of psql.