As I understand it, search engines use a "special" type of database
structure.
They have a special table for common words/phrases and another one with all
the data.
They link theese together by a third one that contains only the id´s from
the other two, thus making the search much faster.
How do they determine the common words? Is it done similar to the FULLTEXT
search in Mysql, all words over three characters?
I think I have heard someone call it "many to many", but am not sure.
Anyway, is there any good tutorial out there so I can design my own?
Or perhaps someone could take a few minutes of their time and explain some
of it to me.
Thanks,
// Tobias
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