Dressed down ..)

SELECT * FROM gallery2 WHERE topic_id="1421414" UNION SELECT * FROM gallery2 WHERE topic_id="1519806" UNION SELECT * FROM gallery2 WHERE topic_id="575802" UNION SELECT * FROM gallery2 WHERE topic_id="1496055" UNION SELECT * FROM gallery2 WHERE topic_id="1489038" UNION SELECT * FROM gallery2 WHERE topic_id="1273136" UNION SELECT * FROM gallery2 WHERE topic_id="294680" UNION SELECT * FROM gallery2 WHERE topic_id="1188090" UNION SELECT * FROM gallery2 WHERE topic_id="364712" UNION SELECT * FROM gallery2 WHERE topic_id="1329177" UNION SELECT * FROM gallery2 WHERE topic_id="1298264" UNION SELECT * FROM gallery2 WHERE topic_id="1799765" UNION SELECT * FROM gallery2 WHERE topic_id="329188" UNION SELECT * FROM gallery2 WHERE topic_id="308809" UNION SELECT * FROM gallery2 WHERE topic_id="1636524" UNION SELECT * FROM gallery2 WHERE topic_id="566117"