Natural

SELECT * FROM gallery2 WHERE topic_id="20309" UNION SELECT * FROM gallery2 WHERE topic_id="373227" UNION SELECT * FROM gallery2 WHERE topic_id="621311" UNION SELECT * FROM gallery2 WHERE topic_id="579626" UNION SELECT * FROM gallery2 WHERE topic_id="861800" UNION SELECT * FROM gallery2 WHERE topic_id="1760872" UNION SELECT * FROM gallery2 WHERE topic_id="1602798" UNION SELECT * FROM gallery2 WHERE topic_id="946391" UNION SELECT * FROM gallery2 WHERE topic_id="1392887" UNION SELECT * FROM gallery2 WHERE topic_id="1561407" UNION SELECT * FROM gallery2 WHERE topic_id="530719" UNION SELECT * FROM gallery2 WHERE topic_id="1010302" UNION SELECT * FROM gallery2 WHERE topic_id="1754286" UNION SELECT * FROM gallery2 WHERE topic_id="1247640" UNION SELECT * FROM gallery2 WHERE topic_id="1552893" UNION SELECT * FROM gallery2 WHERE topic_id="1678866"