Thoughts

SELECT * FROM gallery2 WHERE topic_id="1537998" UNION SELECT * FROM gallery2 WHERE topic_id="1386727" UNION SELECT * FROM gallery2 WHERE topic_id="1237168" UNION SELECT * FROM gallery2 WHERE topic_id="759253" UNION SELECT * FROM gallery2 WHERE topic_id="1188517" UNION SELECT * FROM gallery2 WHERE topic_id="444339" UNION SELECT * FROM gallery2 WHERE topic_id="241485" UNION SELECT * FROM gallery2 WHERE topic_id="205309" UNION SELECT * FROM gallery2 WHERE topic_id="1323984" UNION SELECT * FROM gallery2 WHERE topic_id="569773" UNION SELECT * FROM gallery2 WHERE topic_id="1439143" UNION SELECT * FROM gallery2 WHERE topic_id="1058548" UNION SELECT * FROM gallery2 WHERE topic_id="1275846" UNION SELECT * FROM gallery2 WHERE topic_id="1361396" UNION SELECT * FROM gallery2 WHERE topic_id="33272" UNION SELECT * FROM gallery2 WHERE topic_id="1245771"