Tight

SELECT * FROM gallery2 WHERE topic_id="1707565" UNION SELECT * FROM gallery2 WHERE topic_id="1051594" UNION SELECT * FROM gallery2 WHERE topic_id="1236830" UNION SELECT * FROM gallery2 WHERE topic_id="612501" UNION SELECT * FROM gallery2 WHERE topic_id="1281051" UNION SELECT * FROM gallery2 WHERE topic_id="556593" UNION SELECT * FROM gallery2 WHERE topic_id="1281606" UNION SELECT * FROM gallery2 WHERE topic_id="15394" UNION SELECT * FROM gallery2 WHERE topic_id="186370" UNION SELECT * FROM gallery2 WHERE topic_id="1412120" UNION SELECT * FROM gallery2 WHERE topic_id="126637" UNION SELECT * FROM gallery2 WHERE topic_id="766627" UNION SELECT * FROM gallery2 WHERE topic_id="943490" UNION SELECT * FROM gallery2 WHERE topic_id="578544" UNION SELECT * FROM gallery2 WHERE topic_id="499716" UNION SELECT * FROM gallery2 WHERE topic_id="970559"