Here

SELECT * FROM gallery2 WHERE topic_id="1175449" UNION SELECT * FROM gallery2 WHERE topic_id="866061" UNION SELECT * FROM gallery2 WHERE topic_id="371808" UNION SELECT * FROM gallery2 WHERE topic_id="1003924" UNION SELECT * FROM gallery2 WHERE topic_id="1205743" UNION SELECT * FROM gallery2 WHERE topic_id="179290" UNION SELECT * FROM gallery2 WHERE topic_id="801708" UNION SELECT * FROM gallery2 WHERE topic_id="149528" UNION SELECT * FROM gallery2 WHERE topic_id="1445098" UNION SELECT * FROM gallery2 WHERE topic_id="847935" UNION SELECT * FROM gallery2 WHERE topic_id="91194" UNION SELECT * FROM gallery2 WHERE topic_id="1793328" UNION SELECT * FROM gallery2 WHERE topic_id="419066" UNION SELECT * FROM gallery2 WHERE topic_id="1631714" UNION SELECT * FROM gallery2 WHERE topic_id="881720" UNION SELECT * FROM gallery2 WHERE topic_id="1416735"