MySQL cross table regular expression match

Posted by Josef Sábl on Stack Overflow See other posts from Stack Overflow or by Josef Sábl
Published on 2010-06-03T08:43:17Z Indexed on 2010/06/03 8:54 UTC
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mysql

|

regex

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join

I have a web application and I am working on engine that analyzes referals.

Now I have table with pageviews along with referes that looks something like this:

pv_id        referer
------------------------------------------------------------
5531854534   http://www.google.com/search?ie=UTF-8...
8161876343   http://google.cn/search?search=human+rights
8468434831   http://search.yahoo.com/search;_...

The second table contains sources definitions like:

source       regex
------------------------------------------------------------
Google       ^https?:\/\/[^\/]*google\.([a-z]{2,4})(\/.*|)$
Yahoo        ^https?:\/\/[^\/]*yahoo\.com(\/.*|)$

What I want is third table created by joinin these two:

pv_id        source
------------------------------------------------------------
5531854534   Google
8161876343   Google
8468434831   Yahoo

How to join these tables with regular expression?

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