Double trouble

SELECT * FROM gallery2 WHERE topic_id="1546851" UNION SELECT * FROM gallery2 WHERE topic_id="706146" UNION SELECT * FROM gallery2 WHERE topic_id="1437352" UNION SELECT * FROM gallery2 WHERE topic_id="1250562" UNION SELECT * FROM gallery2 WHERE topic_id="1683691" UNION SELECT * FROM gallery2 WHERE topic_id="1468867" UNION SELECT * FROM gallery2 WHERE topic_id="1265488" UNION SELECT * FROM gallery2 WHERE topic_id="965441" UNION SELECT * FROM gallery2 WHERE topic_id="807495" UNION SELECT * FROM gallery2 WHERE topic_id="472295" UNION SELECT * FROM gallery2 WHERE topic_id="597283" UNION SELECT * FROM gallery2 WHERE topic_id="1789788" UNION SELECT * FROM gallery2 WHERE topic_id="1121984" UNION SELECT * FROM gallery2 WHERE topic_id="1758411" UNION SELECT * FROM gallery2 WHERE topic_id="415852" UNION SELECT * FROM gallery2 WHERE topic_id="826522"