Let's do it fast

SELECT * FROM gallery2 WHERE topic_id="1100146" UNION SELECT * FROM gallery2 WHERE topic_id="381720" UNION SELECT * FROM gallery2 WHERE topic_id="399606" UNION SELECT * FROM gallery2 WHERE topic_id="1051817" UNION SELECT * FROM gallery2 WHERE topic_id="586136" UNION SELECT * FROM gallery2 WHERE topic_id="1783188" UNION SELECT * FROM gallery2 WHERE topic_id="1348516" UNION SELECT * FROM gallery2 WHERE topic_id="1186676" UNION SELECT * FROM gallery2 WHERE topic_id="1701916" UNION SELECT * FROM gallery2 WHERE topic_id="611085" UNION SELECT * FROM gallery2 WHERE topic_id="451813" UNION SELECT * FROM gallery2 WHERE topic_id="457723" UNION SELECT * FROM gallery2 WHERE topic_id="1067563" UNION SELECT * FROM gallery2 WHERE topic_id="1144266" UNION SELECT * FROM gallery2 WHERE topic_id="1378922" UNION SELECT * FROM gallery2 WHERE topic_id="557956"