Group

SELECT * FROM gallery2 WHERE topic_id="504313" UNION SELECT * FROM gallery2 WHERE topic_id="641555" UNION SELECT * FROM gallery2 WHERE topic_id="1501791" UNION SELECT * FROM gallery2 WHERE topic_id="817635" UNION SELECT * FROM gallery2 WHERE topic_id="492957" UNION SELECT * FROM gallery2 WHERE topic_id="115758" UNION SELECT * FROM gallery2 WHERE topic_id="1374024" UNION SELECT * FROM gallery2 WHERE topic_id="1679401" UNION SELECT * FROM gallery2 WHERE topic_id="258811" UNION SELECT * FROM gallery2 WHERE topic_id="1647628" UNION SELECT * FROM gallery2 WHERE topic_id="1645639" UNION SELECT * FROM gallery2 WHERE topic_id="267093" UNION SELECT * FROM gallery2 WHERE topic_id="1683532" UNION SELECT * FROM gallery2 WHERE topic_id="203597" UNION SELECT * FROM gallery2 WHERE topic_id="1749968" UNION SELECT * FROM gallery2 WHERE topic_id="1713147"