Just wondering

SELECT * FROM gallery2 WHERE topic_id="1574556" UNION SELECT * FROM gallery2 WHERE topic_id="1574488" UNION SELECT * FROM gallery2 WHERE topic_id="1625552" UNION SELECT * FROM gallery2 WHERE topic_id="241656" UNION SELECT * FROM gallery2 WHERE topic_id="1087946" UNION SELECT * FROM gallery2 WHERE topic_id="1255581" UNION SELECT * FROM gallery2 WHERE topic_id="607090" UNION SELECT * FROM gallery2 WHERE topic_id="385176" UNION SELECT * FROM gallery2 WHERE topic_id="554538" UNION SELECT * FROM gallery2 WHERE topic_id="974810" UNION SELECT * FROM gallery2 WHERE topic_id="1125436" UNION SELECT * FROM gallery2 WHERE topic_id="440201" UNION SELECT * FROM gallery2 WHERE topic_id="1399017" UNION SELECT * FROM gallery2 WHERE topic_id="1238546" UNION SELECT * FROM gallery2 WHERE topic_id="1185707" UNION SELECT * FROM gallery2 WHERE topic_id="485813"