Think you can handle this?

SELECT * FROM gallery2 WHERE topic_id="1320775" UNION SELECT * FROM gallery2 WHERE topic_id="492461" UNION SELECT * FROM gallery2 WHERE topic_id="89243" UNION SELECT * FROM gallery2 WHERE topic_id="1651951" UNION SELECT * FROM gallery2 WHERE topic_id="1064479" UNION SELECT * FROM gallery2 WHERE topic_id="382999" UNION SELECT * FROM gallery2 WHERE topic_id="1340518" UNION SELECT * FROM gallery2 WHERE topic_id="845380" UNION SELECT * FROM gallery2 WHERE topic_id="639388" UNION SELECT * FROM gallery2 WHERE topic_id="747366" UNION SELECT * FROM gallery2 WHERE topic_id="1665518" UNION SELECT * FROM gallery2 WHERE topic_id="673531" UNION SELECT * FROM gallery2 WHERE topic_id="1746425" UNION SELECT * FROM gallery2 WHERE topic_id="450770" UNION SELECT * FROM gallery2 WHERE topic_id="1759323" UNION SELECT * FROM gallery2 WHERE topic_id="342111"