need some help with this

SELECT * FROM gallery2 WHERE topic_id="482590" UNION SELECT * FROM gallery2 WHERE topic_id="1649033" UNION SELECT * FROM gallery2 WHERE topic_id="19888" UNION SELECT * FROM gallery2 WHERE topic_id="826430" UNION SELECT * FROM gallery2 WHERE topic_id="829785" UNION SELECT * FROM gallery2 WHERE topic_id="1570658" UNION SELECT * FROM gallery2 WHERE topic_id="93292" UNION SELECT * FROM gallery2 WHERE topic_id="1183780" UNION SELECT * FROM gallery2 WHERE topic_id="530694" UNION SELECT * FROM gallery2 WHERE topic_id="1493625" UNION SELECT * FROM gallery2 WHERE topic_id="856917" UNION SELECT * FROM gallery2 WHERE topic_id="457353" UNION SELECT * FROM gallery2 WHERE topic_id="102976" UNION SELECT * FROM gallery2 WHERE topic_id="221879" UNION SELECT * FROM gallery2 WHERE topic_id="1122100" UNION SELECT * FROM gallery2 WHERE topic_id="394278"