what do u think?

SELECT * FROM gallery2 WHERE topic_id="271890" UNION SELECT * FROM gallery2 WHERE topic_id="95518" UNION SELECT * FROM gallery2 WHERE topic_id="1171344" UNION SELECT * FROM gallery2 WHERE topic_id="193589" UNION SELECT * FROM gallery2 WHERE topic_id="1208364" UNION SELECT * FROM gallery2 WHERE topic_id="655081" UNION SELECT * FROM gallery2 WHERE topic_id="137865" UNION SELECT * FROM gallery2 WHERE topic_id="1338706" UNION SELECT * FROM gallery2 WHERE topic_id="1756876" UNION SELECT * FROM gallery2 WHERE topic_id="1652908" UNION SELECT * FROM gallery2 WHERE topic_id="1635936" UNION SELECT * FROM gallery2 WHERE topic_id="796324" UNION SELECT * FROM gallery2 WHERE topic_id="783911" UNION SELECT * FROM gallery2 WHERE topic_id="1443358" UNION SELECT * FROM gallery2 WHERE topic_id="408278" UNION SELECT * FROM gallery2 WHERE topic_id="311082"