Thoughts

SELECT * FROM gallery2 WHERE topic_id="107402" UNION SELECT * FROM gallery2 WHERE topic_id="1234321" UNION SELECT * FROM gallery2 WHERE topic_id="1665992" UNION SELECT * FROM gallery2 WHERE topic_id="939447" UNION SELECT * FROM gallery2 WHERE topic_id="690466" UNION SELECT * FROM gallery2 WHERE topic_id="1313066" UNION SELECT * FROM gallery2 WHERE topic_id="1200154" UNION SELECT * FROM gallery2 WHERE topic_id="1630751" UNION SELECT * FROM gallery2 WHERE topic_id="138070" UNION SELECT * FROM gallery2 WHERE topic_id="1193109" UNION SELECT * FROM gallery2 WHERE topic_id="789466" UNION SELECT * FROM gallery2 WHERE topic_id="342739" UNION SELECT * FROM gallery2 WHERE topic_id="1814207" UNION SELECT * FROM gallery2 WHERE topic_id="1267638" UNION SELECT * FROM gallery2 WHERE topic_id="590151" UNION SELECT * FROM gallery2 WHERE topic_id="494057"