Plnk

SELECT * FROM gallery2 WHERE topic_id="1282684" UNION SELECT * FROM gallery2 WHERE topic_id="158406" UNION SELECT * FROM gallery2 WHERE topic_id="1148393" UNION SELECT * FROM gallery2 WHERE topic_id="874019" UNION SELECT * FROM gallery2 WHERE topic_id="694535" UNION SELECT * FROM gallery2 WHERE topic_id="1799193" UNION SELECT * FROM gallery2 WHERE topic_id="93339" UNION SELECT * FROM gallery2 WHERE topic_id="402267" UNION SELECT * FROM gallery2 WHERE topic_id="1612026" UNION SELECT * FROM gallery2 WHERE topic_id="1606118" UNION SELECT * FROM gallery2 WHERE topic_id="884899" UNION SELECT * FROM gallery2 WHERE topic_id="1396827" UNION SELECT * FROM gallery2 WHERE topic_id="915107" UNION SELECT * FROM gallery2 WHERE topic_id="1437147" UNION SELECT * FROM gallery2 WHERE topic_id="391831" UNION SELECT * FROM gallery2 WHERE topic_id="1811018"