Potential

SELECT * FROM gallery2 WHERE topic_id="529630" UNION SELECT * FROM gallery2 WHERE topic_id="236589" UNION SELECT * FROM gallery2 WHERE topic_id="1793096" UNION SELECT * FROM gallery2 WHERE topic_id="1514141" UNION SELECT * FROM gallery2 WHERE topic_id="1318907" UNION SELECT * FROM gallery2 WHERE topic_id="962793" UNION SELECT * FROM gallery2 WHERE topic_id="1371818" UNION SELECT * FROM gallery2 WHERE topic_id="1295586" UNION SELECT * FROM gallery2 WHERE topic_id="587416" UNION SELECT * FROM gallery2 WHERE topic_id="399141" UNION SELECT * FROM gallery2 WHERE topic_id="60904" UNION SELECT * FROM gallery2 WHERE topic_id="514413" UNION SELECT * FROM gallery2 WHERE topic_id="1689869" UNION SELECT * FROM gallery2 WHERE topic_id="597748" UNION SELECT * FROM gallery2 WHERE topic_id="1757642" UNION SELECT * FROM gallery2 WHERE topic_id="1500968"