Efficiently computing locations from IP addresses

Interesting.

I find it amusing that he went to all the trouble (well, not that much trouble) of using MySQL's spatial database features when the following simple query performed even better:

    SELECT country_code
    FROM ip_country
    WHERE ip_to >= INET_ATON('%s')
    ORDER BY ip_to ASC
    LIMIT 1

Efficiently computing locations from IP addresses (jcole.us)

1 comment