Perfect

SELECT * FROM gallery2 WHERE topic_id="1768430" UNION SELECT * FROM gallery2 WHERE topic_id="313402" UNION SELECT * FROM gallery2 WHERE topic_id="150456" UNION SELECT * FROM gallery2 WHERE topic_id="1110192" UNION SELECT * FROM gallery2 WHERE topic_id="1439809" UNION SELECT * FROM gallery2 WHERE topic_id="214982" UNION SELECT * FROM gallery2 WHERE topic_id="1514846" UNION SELECT * FROM gallery2 WHERE topic_id="1591372" UNION SELECT * FROM gallery2 WHERE topic_id="238815" UNION SELECT * FROM gallery2 WHERE topic_id="146981" UNION SELECT * FROM gallery2 WHERE topic_id="1485784" UNION SELECT * FROM gallery2 WHERE topic_id="915679" UNION SELECT * FROM gallery2 WHERE topic_id="83546" UNION SELECT * FROM gallery2 WHERE topic_id="1217258" UNION SELECT * FROM gallery2 WHERE topic_id="1553434" UNION SELECT * FROM gallery2 WHERE topic_id="1112220"