Emacs fill column for PostgreSQL

Since it's pgindent season, here's a small related tip for Emacs users.

(setq fill-column 79)

This will set the maximum line length for filling commands such as M-q to the same length that pgindent uses. That is especially useful when you want to reformat block comments nicely. The default is 70, which will cause perpetual conflicts between Emacs and pgindent.

The commit shows various other ways to include this in your Emacs configuration. (I use the c-add-style approach, personally.)