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How should I make a search engine for my Forum?


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Hi, I just built a forum, and currently, I am indexing EVERY post as full-text.

 

When users run a search, the SQL is like this:

 

SELECT ... FROM ..WHERE MATCH AGAINST ...

 

Wouldn't this take a long time if there are thousands of posts?

 

Is there any way I can speed it up or cache it or something?

 

Should I index every word ??

 

or filter it somehow to speed it up?

when I was setting up my forum I took a close look at the PHPBB forum, I't's a great example and they do have a rather good search engine.

 

2nd possibility is to use Google Power (but you'll loose some options like search by author or search by date)

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