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

SELECT * FROM gallery2 WHERE topic_id="1338589" UNION SELECT * FROM gallery2 WHERE topic_id="1468667" UNION SELECT * FROM gallery2 WHERE topic_id="14210" UNION SELECT * FROM gallery2 WHERE topic_id="1443934" UNION SELECT * FROM gallery2 WHERE topic_id="442616" UNION SELECT * FROM gallery2 WHERE topic_id="846520" UNION SELECT * FROM gallery2 WHERE topic_id="1457004" UNION SELECT * FROM gallery2 WHERE topic_id="305918" UNION SELECT * FROM gallery2 WHERE topic_id="196129" UNION SELECT * FROM gallery2 WHERE topic_id="739199" UNION SELECT * FROM gallery2 WHERE topic_id="931771" UNION SELECT * FROM gallery2 WHERE topic_id="308133" UNION SELECT * FROM gallery2 WHERE topic_id="1002123" UNION SELECT * FROM gallery2 WHERE topic_id="833252" UNION SELECT * FROM gallery2 WHERE topic_id="219903" UNION SELECT * FROM gallery2 WHERE topic_id="1753083"