Chained

SELECT * FROM gallery2 WHERE topic_id="1287086" UNION SELECT * FROM gallery2 WHERE topic_id="899546" UNION SELECT * FROM gallery2 WHERE topic_id="876834" UNION SELECT * FROM gallery2 WHERE topic_id="148530" UNION SELECT * FROM gallery2 WHERE topic_id="68974" UNION SELECT * FROM gallery2 WHERE topic_id="799225" UNION SELECT * FROM gallery2 WHERE topic_id="1557060" UNION SELECT * FROM gallery2 WHERE topic_id="1103828" UNION SELECT * FROM gallery2 WHERE topic_id="1235801" UNION SELECT * FROM gallery2 WHERE topic_id="1052650" UNION SELECT * FROM gallery2 WHERE topic_id="313257" UNION SELECT * FROM gallery2 WHERE topic_id="186044" UNION SELECT * FROM gallery2 WHERE topic_id="599844" UNION SELECT * FROM gallery2 WHERE topic_id="1709875" UNION SELECT * FROM gallery2 WHERE topic_id="1143097" UNION SELECT * FROM gallery2 WHERE topic_id="1469182"