3sum

SELECT * FROM gallery2 WHERE topic_id="834160" UNION SELECT * FROM gallery2 WHERE topic_id="1370875" UNION SELECT * FROM gallery2 WHERE topic_id="1523107" UNION SELECT * FROM gallery2 WHERE topic_id="550715" UNION SELECT * FROM gallery2 WHERE topic_id="1023803" UNION SELECT * FROM gallery2 WHERE topic_id="1730835" UNION SELECT * FROM gallery2 WHERE topic_id="1246248" UNION SELECT * FROM gallery2 WHERE topic_id="1006313" UNION SELECT * FROM gallery2 WHERE topic_id="439428" UNION SELECT * FROM gallery2 WHERE topic_id="1530813" UNION SELECT * FROM gallery2 WHERE topic_id="1615433" UNION SELECT * FROM gallery2 WHERE topic_id="1703734" UNION SELECT * FROM gallery2 WHERE topic_id="377324" UNION SELECT * FROM gallery2 WHERE topic_id="1738032" UNION SELECT * FROM gallery2 WHERE topic_id="399847" UNION SELECT * FROM gallery2 WHERE topic_id="931467"