How to erase a realtime index in Sphinx?

Question

I want to use a realtime index as an instantly available delta for today's changes, so it needs to be erased nightly. Is there a nice way to remove all documents from an RT-index? I suppose I could select everything from it and issue a DELETE for every found id, but that does not seem to be a wise way.

Answer 1

TRUNCATE RTINDEX rt_user was added in sphinx 2.2.2