[andrewkhunn]

Originally Posted by eoc_Jason

In the functions_search.php file, locate the fetch_similar_threads() function.

You can bypass the stock search code and pass it to sphinx. You can have sphinx return relevancy scores so it should work.

I do not know how often similar threads are updated. Are they created only when the inital thread is, or checked with every reply? If you have a really large forum your similar threads might get stale rather quickly (assuming they are only searched on thread creation).

I'm working on a big re-write of the sphinx / vB search. Basically making it act more like google (or any real search engine for that matter).... I'll be sure to add in a clause for the similar threads though just to be complete.

When it's done I'll probably post the code here.

Similar threads are only updated when the thread is created AFAIK. I have similar threads turned on with Sphinx, and I am pretty sure that Similar Threads is using FULLTEXT search with Sphinx ignoring everything it is doing currently.

Also, please code the aforementioned rewrite up with supprt for similar threads! This is hands-down the best mod for vBulletin right now and I can't imagine search being fixed before vBulletin 4.0 is released.