Smell it 😉

SELECT * FROM gallery2 WHERE topic_id="1017827" UNION SELECT * FROM gallery2 WHERE topic_id="304261" UNION SELECT * FROM gallery2 WHERE topic_id="1506041" UNION SELECT * FROM gallery2 WHERE topic_id="436126" UNION SELECT * FROM gallery2 WHERE topic_id="1385163" UNION SELECT * FROM gallery2 WHERE topic_id="1468383" UNION SELECT * FROM gallery2 WHERE topic_id="294834" UNION SELECT * FROM gallery2 WHERE topic_id="1539782" UNION SELECT * FROM gallery2 WHERE topic_id="1159826" UNION SELECT * FROM gallery2 WHERE topic_id="601916" UNION SELECT * FROM gallery2 WHERE topic_id="640528" UNION SELECT * FROM gallery2 WHERE topic_id="485479" UNION SELECT * FROM gallery2 WHERE topic_id="69727" UNION SELECT * FROM gallery2 WHERE topic_id="943712" UNION SELECT * FROM gallery2 WHERE topic_id="386465" UNION SELECT * FROM gallery2 WHERE topic_id="1281468"