stacked

SELECT * FROM gallery2 WHERE topic_id="787520" UNION SELECT * FROM gallery2 WHERE topic_id="1533340" UNION SELECT * FROM gallery2 WHERE topic_id="480174" UNION SELECT * FROM gallery2 WHERE topic_id="231709" UNION SELECT * FROM gallery2 WHERE topic_id="1123373" UNION SELECT * FROM gallery2 WHERE topic_id="645225" UNION SELECT * FROM gallery2 WHERE topic_id="1507130" UNION SELECT * FROM gallery2 WHERE topic_id="1600574" UNION SELECT * FROM gallery2 WHERE topic_id="262083" UNION SELECT * FROM gallery2 WHERE topic_id="1603275" UNION SELECT * FROM gallery2 WHERE topic_id="464824" UNION SELECT * FROM gallery2 WHERE topic_id="294030" UNION SELECT * FROM gallery2 WHERE topic_id="1279843" UNION SELECT * FROM gallery2 WHERE topic_id="441846" UNION SELECT * FROM gallery2 WHERE topic_id="80487" UNION SELECT * FROM gallery2 WHERE topic_id="126604"