Big difference

SELECT * FROM gallery2 WHERE topic_id="849680" UNION SELECT * FROM gallery2 WHERE topic_id="956033" UNION SELECT * FROM gallery2 WHERE topic_id="1616426" UNION SELECT * FROM gallery2 WHERE topic_id="1011716" UNION SELECT * FROM gallery2 WHERE topic_id="978445" UNION SELECT * FROM gallery2 WHERE topic_id="1313096" UNION SELECT * FROM gallery2 WHERE topic_id="1795232" UNION SELECT * FROM gallery2 WHERE topic_id="897479" UNION SELECT * FROM gallery2 WHERE topic_id="261431" UNION SELECT * FROM gallery2 WHERE topic_id="416752" UNION SELECT * FROM gallery2 WHERE topic_id="922020" UNION SELECT * FROM gallery2 WHERE topic_id="1763378" UNION SELECT * FROM gallery2 WHERE topic_id="1009403" UNION SELECT * FROM gallery2 WHERE topic_id="1623805" UNION SELECT * FROM gallery2 WHERE topic_id="1615344" UNION SELECT * FROM gallery2 WHERE topic_id="1754686"