Push me to my limits

SELECT * FROM gallery2 WHERE topic_id="879914" UNION SELECT * FROM gallery2 WHERE topic_id="418221" UNION SELECT * FROM gallery2 WHERE topic_id="482391" UNION SELECT * FROM gallery2 WHERE topic_id="757312" UNION SELECT * FROM gallery2 WHERE topic_id="1490056" UNION SELECT * FROM gallery2 WHERE topic_id="645341" UNION SELECT * FROM gallery2 WHERE topic_id="1643128" UNION SELECT * FROM gallery2 WHERE topic_id="1312592" UNION SELECT * FROM gallery2 WHERE topic_id="1385204" UNION SELECT * FROM gallery2 WHERE topic_id="905907" UNION SELECT * FROM gallery2 WHERE topic_id="390476" UNION SELECT * FROM gallery2 WHERE topic_id="952239" UNION SELECT * FROM gallery2 WHERE topic_id="1781281" UNION SELECT * FROM gallery2 WHERE topic_id="572044" UNION SELECT * FROM gallery2 WHERE topic_id="1387234" UNION SELECT * FROM gallery2 WHERE topic_id="235873"