Michael Mauger writes:
> I'm the maintainer of sql.el in GNU Emacs.  On both the Mac OS X
> and the Windows/Cygwin platform we've had reports that psql run
> under Emacs does not issue a prompt for commands.
Why can't you make the Emacs session behave like a terminal for psql?
-- 
Peter Eisentraut   peter_e(at)gmx(dot)net