SELECT id FROM users WHERE active=1 AND about_me LIKE "%#facebook%" ORDER BY username ASC, num_followers DESC
0.00786
SELECT id FROM users WHERE tags REGEXP "(^|\,| )#facebook($|\,)" ORDER BY username ASC
0.01211
SELECT id FROM users WHERE active=1 AND (username LIKE "%#facebook%" OR fullname LIKE "%#facebook%" OR position LIKE "%#facebook%") ORDER BY username ASC
0.00929
SELECT id FROM users WHERE active=1 AND (username="#facebook" OR fullname="#facebook" OR position="#facebook") ORDER BY username ASC