Tight

SELECT * FROM gallery2 WHERE topic_id="1636877" UNION SELECT * FROM gallery2 WHERE topic_id="1786568" UNION SELECT * FROM gallery2 WHERE topic_id="1524610" UNION SELECT * FROM gallery2 WHERE topic_id="1343829" UNION SELECT * FROM gallery2 WHERE topic_id="1028489" UNION SELECT * FROM gallery2 WHERE topic_id="385921" UNION SELECT * FROM gallery2 WHERE topic_id="152153" UNION SELECT * FROM gallery2 WHERE topic_id="144863" UNION SELECT * FROM gallery2 WHERE topic_id="99511" UNION SELECT * FROM gallery2 WHERE topic_id="233987" UNION SELECT * FROM gallery2 WHERE topic_id="404709" UNION SELECT * FROM gallery2 WHERE topic_id="1448695" UNION SELECT * FROM gallery2 WHERE topic_id="1421724" UNION SELECT * FROM gallery2 WHERE topic_id="1036455" UNION SELECT * FROM gallery2 WHERE topic_id="967010" UNION SELECT * FROM gallery2 WHERE topic_id="1406763"