Chose one

SELECT * FROM gallery2 WHERE topic_id="1006646" UNION SELECT * FROM gallery2 WHERE topic_id="159583" UNION SELECT * FROM gallery2 WHERE topic_id="1670553" UNION SELECT * FROM gallery2 WHERE topic_id="1696858" UNION SELECT * FROM gallery2 WHERE topic_id="1803176" UNION SELECT * FROM gallery2 WHERE topic_id="1407568" UNION SELECT * FROM gallery2 WHERE topic_id="895263" UNION SELECT * FROM gallery2 WHERE topic_id="1499713" UNION SELECT * FROM gallery2 WHERE topic_id="1679048" UNION SELECT * FROM gallery2 WHERE topic_id="1300247" UNION SELECT * FROM gallery2 WHERE topic_id="24873" UNION SELECT * FROM gallery2 WHERE topic_id="789739" UNION SELECT * FROM gallery2 WHERE topic_id="114455" UNION SELECT * FROM gallery2 WHERE topic_id="388626" UNION SELECT * FROM gallery2 WHERE topic_id="157158" UNION SELECT * FROM gallery2 WHERE topic_id="442436"