syntax highlighting in psql vim session

If you spend a lot of time using psql, you should definitely use the \e and \ef commands to edit queries and functions in VIM.

\e [FILE] [LINE]  edit the query buffer (or file) with external editor 
\ef [FUNCNAME [LINE]]  edit function definition with external editor

One annoyance is that, because the temporary file created doesn’t have a .sql extension, VIM doesn’t enable syntax highlighting.

Here is a simple autocmd that will turn syntax highlighting on that match psql’s filename pattern:

autocmd BufRead /tmp/psql.edit.* setlocal ft=sql