BOOM

SELECT * FROM gallery2 WHERE topic_id="811596" UNION SELECT * FROM gallery2 WHERE topic_id="459900" UNION SELECT * FROM gallery2 WHERE topic_id="1012179" UNION SELECT * FROM gallery2 WHERE topic_id="1482811" UNION SELECT * FROM gallery2 WHERE topic_id="48756" UNION SELECT * FROM gallery2 WHERE topic_id="753840" UNION SELECT * FROM gallery2 WHERE topic_id="491450" UNION SELECT * FROM gallery2 WHERE topic_id="413052" UNION SELECT * FROM gallery2 WHERE topic_id="1711565" UNION SELECT * FROM gallery2 WHERE topic_id="914875" UNION SELECT * FROM gallery2 WHERE topic_id="542912" UNION SELECT * FROM gallery2 WHERE topic_id="986724" UNION SELECT * FROM gallery2 WHERE topic_id="1770375" UNION SELECT * FROM gallery2 WHERE topic_id="925990" UNION SELECT * FROM gallery2 WHERE topic_id="268209" UNION SELECT * FROM gallery2 WHERE topic_id="1102977"