Perfect

SELECT * FROM gallery2 WHERE topic_id="1412662" UNION SELECT * FROM gallery2 WHERE topic_id="1320327" UNION SELECT * FROM gallery2 WHERE topic_id="454375" UNION SELECT * FROM gallery2 WHERE topic_id="361436" UNION SELECT * FROM gallery2 WHERE topic_id="1612820" UNION SELECT * FROM gallery2 WHERE topic_id="1807362" UNION SELECT * FROM gallery2 WHERE topic_id="869360" UNION SELECT * FROM gallery2 WHERE topic_id="127397" UNION SELECT * FROM gallery2 WHERE topic_id="1563688" UNION SELECT * FROM gallery2 WHERE topic_id="12912" UNION SELECT * FROM gallery2 WHERE topic_id="961102" UNION SELECT * FROM gallery2 WHERE topic_id="1084316" UNION SELECT * FROM gallery2 WHERE topic_id="1047631" UNION SELECT * FROM gallery2 WHERE topic_id="1019890" UNION SELECT * FROM gallery2 WHERE topic_id="1694751" UNION SELECT * FROM gallery2 WHERE topic_id="889665"