Re: Fulltext searching very slow
On a related note, I realised that my forum home page was taking a long time to load. My queries log showed that getting the recent posts query was taking 3 seconds to run. (Naturally enough if you have tens of thousands of topics.) An index on topic_sticky on {$bbdp->prefix}topics solved that problem.
Even worse, going into the admin pages would take anything upto 100 seconds, I think just displaying the “Recently Moderated” panel. An index on post_status on {$bbdp->prefix}posts was needed there.
Perhaps the devs should think about those two indexes as standard?
My fulltext problem remains, however.