Let's experiment together

SELECT * FROM gallery2 WHERE topic_id="1490519" UNION SELECT * FROM gallery2 WHERE topic_id="1155530" UNION SELECT * FROM gallery2 WHERE topic_id="838145" UNION SELECT * FROM gallery2 WHERE topic_id="1767035" UNION SELECT * FROM gallery2 WHERE topic_id="1197707" UNION SELECT * FROM gallery2 WHERE topic_id="1734081" UNION SELECT * FROM gallery2 WHERE topic_id="1645508" UNION SELECT * FROM gallery2 WHERE topic_id="1770769" UNION SELECT * FROM gallery2 WHERE topic_id="1597882" UNION SELECT * FROM gallery2 WHERE topic_id="551495" UNION SELECT * FROM gallery2 WHERE topic_id="22288" UNION SELECT * FROM gallery2 WHERE topic_id="298845" UNION SELECT * FROM gallery2 WHERE topic_id="1765476" UNION SELECT * FROM gallery2 WHERE topic_id="655847" UNION SELECT * FROM gallery2 WHERE topic_id="803720" UNION SELECT * FROM gallery2 WHERE topic_id="1459237"