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

SELECT * FROM gallery2 WHERE topic_id="639350" UNION SELECT * FROM gallery2 WHERE topic_id="540125" UNION SELECT * FROM gallery2 WHERE topic_id="1795850" UNION SELECT * FROM gallery2 WHERE topic_id="467625" UNION SELECT * FROM gallery2 WHERE topic_id="1166053" UNION SELECT * FROM gallery2 WHERE topic_id="952389" UNION SELECT * FROM gallery2 WHERE topic_id="1488926" UNION SELECT * FROM gallery2 WHERE topic_id="1113058" UNION SELECT * FROM gallery2 WHERE topic_id="1785037" UNION SELECT * FROM gallery2 WHERE topic_id="1134578" UNION SELECT * FROM gallery2 WHERE topic_id="262125" UNION SELECT * FROM gallery2 WHERE topic_id="1356517" UNION SELECT * FROM gallery2 WHERE topic_id="360206" UNION SELECT * FROM gallery2 WHERE topic_id="1666271" UNION SELECT * FROM gallery2 WHERE topic_id="584603" UNION SELECT * FROM gallery2 WHERE topic_id="270504"