Mix match

SELECT * FROM gallery2 WHERE topic_id="255221" UNION SELECT * FROM gallery2 WHERE topic_id="493494" UNION SELECT * FROM gallery2 WHERE topic_id="1294028" UNION SELECT * FROM gallery2 WHERE topic_id="711143" UNION SELECT * FROM gallery2 WHERE topic_id="809166" UNION SELECT * FROM gallery2 WHERE topic_id="948301" UNION SELECT * FROM gallery2 WHERE topic_id="105741" UNION SELECT * FROM gallery2 WHERE topic_id="546509" UNION SELECT * FROM gallery2 WHERE topic_id="406232" UNION SELECT * FROM gallery2 WHERE topic_id="1589947" UNION SELECT * FROM gallery2 WHERE topic_id="1439109" UNION SELECT * FROM gallery2 WHERE topic_id="1184157" UNION SELECT * FROM gallery2 WHERE topic_id="1353370" UNION SELECT * FROM gallery2 WHERE topic_id="1075521" UNION SELECT * FROM gallery2 WHERE topic_id="1446350" UNION SELECT * FROM gallery2 WHERE topic_id="472994"