Enjoy

SELECT * FROM gallery2 WHERE topic_id="1312769" UNION SELECT * FROM gallery2 WHERE topic_id="550059" UNION SELECT * FROM gallery2 WHERE topic_id="1544517" UNION SELECT * FROM gallery2 WHERE topic_id="898998" UNION SELECT * FROM gallery2 WHERE topic_id="40792" UNION SELECT * FROM gallery2 WHERE topic_id="744745" UNION SELECT * FROM gallery2 WHERE topic_id="1690590" UNION SELECT * FROM gallery2 WHERE topic_id="1116597" UNION SELECT * FROM gallery2 WHERE topic_id="1216216" UNION SELECT * FROM gallery2 WHERE topic_id="452932" UNION SELECT * FROM gallery2 WHERE topic_id="362489" UNION SELECT * FROM gallery2 WHERE topic_id="1340186" UNION SELECT * FROM gallery2 WHERE topic_id="961317" UNION SELECT * FROM gallery2 WHERE topic_id="54425" UNION SELECT * FROM gallery2 WHERE topic_id="1260433" UNION SELECT * FROM gallery2 WHERE topic_id="52571"