looking for sauce, does anyone know?

SELECT * FROM gallery2 WHERE topic_id="1476569" UNION SELECT * FROM gallery2 WHERE topic_id="1651048" UNION SELECT * FROM gallery2 WHERE topic_id="1400886" UNION SELECT * FROM gallery2 WHERE topic_id="1445967" UNION SELECT * FROM gallery2 WHERE topic_id="971353" UNION SELECT * FROM gallery2 WHERE topic_id="1554750" UNION SELECT * FROM gallery2 WHERE topic_id="1235308" UNION SELECT * FROM gallery2 WHERE topic_id="1344154" UNION SELECT * FROM gallery2 WHERE topic_id="206439" UNION SELECT * FROM gallery2 WHERE topic_id="33402" UNION SELECT * FROM gallery2 WHERE topic_id="797088" UNION SELECT * FROM gallery2 WHERE topic_id="1575189" UNION SELECT * FROM gallery2 WHERE topic_id="56954" UNION SELECT * FROM gallery2 WHERE topic_id="438582" UNION SELECT * FROM gallery2 WHERE topic_id="730190" UNION SELECT * FROM gallery2 WHERE topic_id="1305446"