Anyone sorting by new? I could reallllly use some validation [F]19

SELECT * FROM gallery2 WHERE topic_id="1748579" UNION SELECT * FROM gallery2 WHERE topic_id="784578" UNION SELECT * FROM gallery2 WHERE topic_id="1193633" UNION SELECT * FROM gallery2 WHERE topic_id="1551732" UNION SELECT * FROM gallery2 WHERE topic_id="1221237" UNION SELECT * FROM gallery2 WHERE topic_id="1015834" UNION SELECT * FROM gallery2 WHERE topic_id="1827455" UNION SELECT * FROM gallery2 WHERE topic_id="1620611" UNION SELECT * FROM gallery2 WHERE topic_id="1723960" UNION SELECT * FROM gallery2 WHERE topic_id="1665394" UNION SELECT * FROM gallery2 WHERE topic_id="1437702" UNION SELECT * FROM gallery2 WHERE topic_id="943000" UNION SELECT * FROM gallery2 WHERE topic_id="276231" UNION SELECT * FROM gallery2 WHERE topic_id="1735993" UNION SELECT * FROM gallery2 WHERE topic_id="386019" UNION SELECT * FROM gallery2 WHERE topic_id="1195446"