Flat

SELECT * FROM gallery2 WHERE topic_id="1792491" UNION SELECT * FROM gallery2 WHERE topic_id="1183650" UNION SELECT * FROM gallery2 WHERE topic_id="1663684" UNION SELECT * FROM gallery2 WHERE topic_id="538787" UNION SELECT * FROM gallery2 WHERE topic_id="141746" UNION SELECT * FROM gallery2 WHERE topic_id="1606498" UNION SELECT * FROM gallery2 WHERE topic_id="399772" UNION SELECT * FROM gallery2 WHERE topic_id="1824804" UNION SELECT * FROM gallery2 WHERE topic_id="1428986" UNION SELECT * FROM gallery2 WHERE topic_id="1513868" UNION SELECT * FROM gallery2 WHERE topic_id="1443324" UNION SELECT * FROM gallery2 WHERE topic_id="843583" UNION SELECT * FROM gallery2 WHERE topic_id="1710772" UNION SELECT * FROM gallery2 WHERE topic_id="697406" UNION SELECT * FROM gallery2 WHERE topic_id="1703291" UNION SELECT * FROM gallery2 WHERE topic_id="1486154"