let's do it

SELECT * FROM gallery2 WHERE topic_id="1530087" UNION SELECT * FROM gallery2 WHERE topic_id="349413" UNION SELECT * FROM gallery2 WHERE topic_id="242465" UNION SELECT * FROM gallery2 WHERE topic_id="637420" UNION SELECT * FROM gallery2 WHERE topic_id="1690008" UNION SELECT * FROM gallery2 WHERE topic_id="1268706" UNION SELECT * FROM gallery2 WHERE topic_id="447883" UNION SELECT * FROM gallery2 WHERE topic_id="1657341" UNION SELECT * FROM gallery2 WHERE topic_id="909114" UNION SELECT * FROM gallery2 WHERE topic_id="367850" UNION SELECT * FROM gallery2 WHERE topic_id="1278454" UNION SELECT * FROM gallery2 WHERE topic_id="375729" UNION SELECT * FROM gallery2 WHERE topic_id="833329" UNION SELECT * FROM gallery2 WHERE topic_id="780606" UNION SELECT * FROM gallery2 WHERE topic_id="717943" UNION SELECT * FROM gallery2 WHERE topic_id="646104"