Let's work out 😉

SELECT * FROM gallery2 WHERE topic_id="859412" UNION SELECT * FROM gallery2 WHERE topic_id="1721918" UNION SELECT * FROM gallery2 WHERE topic_id="163428" UNION SELECT * FROM gallery2 WHERE topic_id="1361688" UNION SELECT * FROM gallery2 WHERE topic_id="592405" UNION SELECT * FROM gallery2 WHERE topic_id="211439" UNION SELECT * FROM gallery2 WHERE topic_id="250167" UNION SELECT * FROM gallery2 WHERE topic_id="728798" UNION SELECT * FROM gallery2 WHERE topic_id="1324232" UNION SELECT * FROM gallery2 WHERE topic_id="37317" UNION SELECT * FROM gallery2 WHERE topic_id="1074114" UNION SELECT * FROM gallery2 WHERE topic_id="464042" UNION SELECT * FROM gallery2 WHERE topic_id="1582424" UNION SELECT * FROM gallery2 WHERE topic_id="28892" UNION SELECT * FROM gallery2 WHERE topic_id="566015" UNION SELECT * FROM gallery2 WHERE topic_id="542628"