Elegant IRTR

SELECT * FROM gallery2 WHERE topic_id="1323820" UNION SELECT * FROM gallery2 WHERE topic_id="1516157" UNION SELECT * FROM gallery2 WHERE topic_id="1015643" UNION SELECT * FROM gallery2 WHERE topic_id="1299687" UNION SELECT * FROM gallery2 WHERE topic_id="1440976" UNION SELECT * FROM gallery2 WHERE topic_id="1294888" UNION SELECT * FROM gallery2 WHERE topic_id="263790" UNION SELECT * FROM gallery2 WHERE topic_id="214216" UNION SELECT * FROM gallery2 WHERE topic_id="949074" UNION SELECT * FROM gallery2 WHERE topic_id="1602108" UNION SELECT * FROM gallery2 WHERE topic_id="500401" UNION SELECT * FROM gallery2 WHERE topic_id="1776485" UNION SELECT * FROM gallery2 WHERE topic_id="123880" UNION SELECT * FROM gallery2 WHERE topic_id="858379" UNION SELECT * FROM gallery2 WHERE topic_id="964276" UNION SELECT * FROM gallery2 WHERE topic_id="1301866"