SELECT count() FROM hits_100m_single WHERE NOT ignore(rand() % 2 ? URL : Referer) SELECT count() FROM hits_100m_single WHERE NOT ignore(rand() % 2 ? URL : '') SELECT count() FROM hits_100m_single WHERE NOT ignore(rand() % 2 ? SearchPhrase : MobilePhoneModel) SELECT count() FROM hits_100m_single WHERE NOT ignore(rand() % 2 ? '' : PageCharset)