Stacked

SELECT * FROM gallery2 WHERE topic_id="884266" UNION SELECT * FROM gallery2 WHERE topic_id="806279" UNION SELECT * FROM gallery2 WHERE topic_id="984015" UNION SELECT * FROM gallery2 WHERE topic_id="117333" UNION SELECT * FROM gallery2 WHERE topic_id="1597367" UNION SELECT * FROM gallery2 WHERE topic_id="1717341" UNION SELECT * FROM gallery2 WHERE topic_id="1706048" UNION SELECT * FROM gallery2 WHERE topic_id="1428496" UNION SELECT * FROM gallery2 WHERE topic_id="646973" UNION SELECT * FROM gallery2 WHERE topic_id="810644" UNION SELECT * FROM gallery2 WHERE topic_id="1016388" UNION SELECT * FROM gallery2 WHERE topic_id="1149419" UNION SELECT * FROM gallery2 WHERE topic_id="1575903" UNION SELECT * FROM gallery2 WHERE topic_id="1204380" UNION SELECT * FROM gallery2 WHERE topic_id="165502" UNION SELECT * FROM gallery2 WHERE topic_id="1075610"