Stacked

SELECT * FROM gallery2 WHERE topic_id="328874" UNION SELECT * FROM gallery2 WHERE topic_id="957376" UNION SELECT * FROM gallery2 WHERE topic_id="1572124" UNION SELECT * FROM gallery2 WHERE topic_id="391838" UNION SELECT * FROM gallery2 WHERE topic_id="96600" UNION SELECT * FROM gallery2 WHERE topic_id="1078430" UNION SELECT * FROM gallery2 WHERE topic_id="1137897" UNION SELECT * FROM gallery2 WHERE topic_id="1520922" UNION SELECT * FROM gallery2 WHERE topic_id="75850" UNION SELECT * FROM gallery2 WHERE topic_id="20301" UNION SELECT * FROM gallery2 WHERE topic_id="1561076" UNION SELECT * FROM gallery2 WHERE topic_id="940733" UNION SELECT * FROM gallery2 WHERE topic_id="1696165" UNION SELECT * FROM gallery2 WHERE topic_id="515827" UNION SELECT * FROM gallery2 WHERE topic_id="1720827" UNION SELECT * FROM gallery2 WHERE topic_id="520774"