I do it both

SELECT * FROM gallery2 WHERE topic_id="371592" UNION SELECT * FROM gallery2 WHERE topic_id="834139" UNION SELECT * FROM gallery2 WHERE topic_id="588627" UNION SELECT * FROM gallery2 WHERE topic_id="505469" UNION SELECT * FROM gallery2 WHERE topic_id="456459" UNION SELECT * FROM gallery2 WHERE topic_id="1814027" UNION SELECT * FROM gallery2 WHERE topic_id="1748996" UNION SELECT * FROM gallery2 WHERE topic_id="31756" UNION SELECT * FROM gallery2 WHERE topic_id="1687010" UNION SELECT * FROM gallery2 WHERE topic_id="376389" UNION SELECT * FROM gallery2 WHERE topic_id="727939" UNION SELECT * FROM gallery2 WHERE topic_id="1517031" UNION SELECT * FROM gallery2 WHERE topic_id="1370017" UNION SELECT * FROM gallery2 WHERE topic_id="680551" UNION SELECT * FROM gallery2 WHERE topic_id="1382709" UNION SELECT * FROM gallery2 WHERE topic_id="130683"