Chained

SELECT * FROM gallery2 WHERE topic_id="76682" UNION SELECT * FROM gallery2 WHERE topic_id="590804" UNION SELECT * FROM gallery2 WHERE topic_id="561362" UNION SELECT * FROM gallery2 WHERE topic_id="1320798" UNION SELECT * FROM gallery2 WHERE topic_id="859244" UNION SELECT * FROM gallery2 WHERE topic_id="1133218" UNION SELECT * FROM gallery2 WHERE topic_id="1626473" UNION SELECT * FROM gallery2 WHERE topic_id="1745695" UNION SELECT * FROM gallery2 WHERE topic_id="503827" UNION SELECT * FROM gallery2 WHERE topic_id="1817013" UNION SELECT * FROM gallery2 WHERE topic_id="1815806" UNION SELECT * FROM gallery2 WHERE topic_id="446203" UNION SELECT * FROM gallery2 WHERE topic_id="1719570" UNION SELECT * FROM gallery2 WHERE topic_id="790657" UNION SELECT * FROM gallery2 WHERE topic_id="1318925" UNION SELECT * FROM gallery2 WHERE topic_id="1416794"