Support Staff2 Posted by Pat Allan on 17 Feb, 2012 08:04 AM
It really comes down to Sphinx itself. Flying Sphinx is language
agnostic - so as long as you have the Sphinx settings required for
Japanese, you should be fine. Here's a blog post that talks about
using Sphinx and Thinking Sphinx with Japanese - Flying Sphinx
should sit on top of this without any issues.
I'd recommend setting it all up locally with Thinking Sphinx
first and confirming it works in a way you like before enabling
Flying Sphinx on your Heroku app.