Double trouble

SELECT * FROM gallery2 WHERE topic_id="1575358" UNION SELECT * FROM gallery2 WHERE topic_id="1476676" UNION SELECT * FROM gallery2 WHERE topic_id="368375" UNION SELECT * FROM gallery2 WHERE topic_id="723371" UNION SELECT * FROM gallery2 WHERE topic_id="473007" UNION SELECT * FROM gallery2 WHERE topic_id="875899" UNION SELECT * FROM gallery2 WHERE topic_id="1365913" UNION SELECT * FROM gallery2 WHERE topic_id="1302293" UNION SELECT * FROM gallery2 WHERE topic_id="893500" UNION SELECT * FROM gallery2 WHERE topic_id="1645511" UNION SELECT * FROM gallery2 WHERE topic_id="1006476" UNION SELECT * FROM gallery2 WHERE topic_id="342229" UNION SELECT * FROM gallery2 WHERE topic_id="238279" UNION SELECT * FROM gallery2 WHERE topic_id="1183896" UNION SELECT * FROM gallery2 WHERE topic_id="816546" UNION SELECT * FROM gallery2 WHERE topic_id="801265"