Lets compare

SELECT * FROM gallery2 WHERE topic_id="492145" UNION SELECT * FROM gallery2 WHERE topic_id="1307226" UNION SELECT * FROM gallery2 WHERE topic_id="1418599" UNION SELECT * FROM gallery2 WHERE topic_id="530639" UNION SELECT * FROM gallery2 WHERE topic_id="521279" UNION SELECT * FROM gallery2 WHERE topic_id="420443" UNION SELECT * FROM gallery2 WHERE topic_id="178239" UNION SELECT * FROM gallery2 WHERE topic_id="621892" UNION SELECT * FROM gallery2 WHERE topic_id="490460" UNION SELECT * FROM gallery2 WHERE topic_id="1052178" UNION SELECT * FROM gallery2 WHERE topic_id="1105685" UNION SELECT * FROM gallery2 WHERE topic_id="1121720" UNION SELECT * FROM gallery2 WHERE topic_id="521104" UNION SELECT * FROM gallery2 WHERE topic_id="515331" UNION SELECT * FROM gallery2 WHERE topic_id="1017994" UNION SELECT * FROM gallery2 WHERE topic_id="1220110"