[eoc_Jason]

Thanks for the feedback guys. Another thing I'm pondering on is instead of trying to work off just a main + delta index is to break the total post count up and constantly rotate smaller indexes...

I.E. If a site has 10,000,000 posts... Have 10 indexes each with 1,000,000 threads. Then have each of the indexes rotate say hourly. This would be a shift from the typical one massive re-index nightly (or however often you do it). In theory too, the last index would contain the most recent posts and could be re-indexed more often.

I dunno, that's just a thought... My concern right now is the core code for searching, the indexes themselves can be manipulated differently at a later time as that is transparent to everything else.