Stacked

SELECT * FROM gallery2 WHERE topic_id="108686" UNION SELECT * FROM gallery2 WHERE topic_id="850583" UNION SELECT * FROM gallery2 WHERE topic_id="1458905" UNION SELECT * FROM gallery2 WHERE topic_id="902481" UNION SELECT * FROM gallery2 WHERE topic_id="1803581" UNION SELECT * FROM gallery2 WHERE topic_id="502141" UNION SELECT * FROM gallery2 WHERE topic_id="326843" UNION SELECT * FROM gallery2 WHERE topic_id="14633" UNION SELECT * FROM gallery2 WHERE topic_id="553526" UNION SELECT * FROM gallery2 WHERE topic_id="294269" UNION SELECT * FROM gallery2 WHERE topic_id="1602028" UNION SELECT * FROM gallery2 WHERE topic_id="1708308" UNION SELECT * FROM gallery2 WHERE topic_id="1475731" UNION SELECT * FROM gallery2 WHERE topic_id="1536977" UNION SELECT * FROM gallery2 WHERE topic_id="1726837" UNION SELECT * FROM gallery2 WHERE topic_id="713638"