Stacked

SELECT * FROM gallery2 WHERE topic_id="462725" UNION SELECT * FROM gallery2 WHERE topic_id="555886" UNION SELECT * FROM gallery2 WHERE topic_id="156617" UNION SELECT * FROM gallery2 WHERE topic_id="611499" UNION SELECT * FROM gallery2 WHERE topic_id="951550" UNION SELECT * FROM gallery2 WHERE topic_id="1013892" UNION SELECT * FROM gallery2 WHERE topic_id="428999" UNION SELECT * FROM gallery2 WHERE topic_id="629332" UNION SELECT * FROM gallery2 WHERE topic_id="1384385" UNION SELECT * FROM gallery2 WHERE topic_id="918971" UNION SELECT * FROM gallery2 WHERE topic_id="1514456" UNION SELECT * FROM gallery2 WHERE topic_id="1822447" UNION SELECT * FROM gallery2 WHERE topic_id="361570" UNION SELECT * FROM gallery2 WHERE topic_id="203457" UNION SELECT * FROM gallery2 WHERE topic_id="264787" UNION SELECT * FROM gallery2 WHERE topic_id="1712397"