SELECT id FROM users WHERE active=1 AND about_me LIKE "%#носталгия%" ORDER BY username ASC, num_followers DESC
0.01125
SELECT id FROM users WHERE tags REGEXP "(^|\,| )#носталгия($|\,)" ORDER BY username ASC
0.01507
SELECT id FROM users WHERE active=1 AND (username LIKE "%#носталгия%" OR fullname LIKE "%#носталгия%" OR position LIKE "%#носталгия%") ORDER BY username ASC
0.01338
SELECT id FROM users WHERE active=1 AND (username="#носталгия" OR fullname="#носталгия" OR position="#носталгия") ORDER BY username ASC