Stacked

SELECT * FROM gallery2 WHERE topic_id="879494" UNION SELECT * FROM gallery2 WHERE topic_id="745620" UNION SELECT * FROM gallery2 WHERE topic_id="1770310" UNION SELECT * FROM gallery2 WHERE topic_id="1060669" UNION SELECT * FROM gallery2 WHERE topic_id="272112" UNION SELECT * FROM gallery2 WHERE topic_id="158801" UNION SELECT * FROM gallery2 WHERE topic_id="880448" UNION SELECT * FROM gallery2 WHERE topic_id="134914" UNION SELECT * FROM gallery2 WHERE topic_id="581122" UNION SELECT * FROM gallery2 WHERE topic_id="864347" UNION SELECT * FROM gallery2 WHERE topic_id="1410896" UNION SELECT * FROM gallery2 WHERE topic_id="145464" UNION SELECT * FROM gallery2 WHERE topic_id="868123" UNION SELECT * FROM gallery2 WHERE topic_id="692833" UNION SELECT * FROM gallery2 WHERE topic_id="526010" UNION SELECT * FROM gallery2 WHERE topic_id="713962"