Dig in

SELECT * FROM gallery2 WHERE topic_id="637463" UNION SELECT * FROM gallery2 WHERE topic_id="753783" UNION SELECT * FROM gallery2 WHERE topic_id="173003" UNION SELECT * FROM gallery2 WHERE topic_id="1493821" UNION SELECT * FROM gallery2 WHERE topic_id="1400288" UNION SELECT * FROM gallery2 WHERE topic_id="1595343" UNION SELECT * FROM gallery2 WHERE topic_id="526151" UNION SELECT * FROM gallery2 WHERE topic_id="68717" UNION SELECT * FROM gallery2 WHERE topic_id="506437" UNION SELECT * FROM gallery2 WHERE topic_id="1411333" UNION SELECT * FROM gallery2 WHERE topic_id="1560871" UNION SELECT * FROM gallery2 WHERE topic_id="1581781" UNION SELECT * FROM gallery2 WHERE topic_id="1768270" UNION SELECT * FROM gallery2 WHERE topic_id="1473740" UNION SELECT * FROM gallery2 WHERE topic_id="1172525" UNION SELECT * FROM gallery2 WHERE topic_id="1079822"