Expectation

SELECT * FROM gallery2 WHERE topic_id="900652" UNION SELECT * FROM gallery2 WHERE topic_id="1460730" UNION SELECT * FROM gallery2 WHERE topic_id="413905" UNION SELECT * FROM gallery2 WHERE topic_id="539255" UNION SELECT * FROM gallery2 WHERE topic_id="682550" UNION SELECT * FROM gallery2 WHERE topic_id="1120796" UNION SELECT * FROM gallery2 WHERE topic_id="222724" UNION SELECT * FROM gallery2 WHERE topic_id="1371800" UNION SELECT * FROM gallery2 WHERE topic_id="1590673" UNION SELECT * FROM gallery2 WHERE topic_id="1325377" UNION SELECT * FROM gallery2 WHERE topic_id="1347746" UNION SELECT * FROM gallery2 WHERE topic_id="1442587" UNION SELECT * FROM gallery2 WHERE topic_id="1197347" UNION SELECT * FROM gallery2 WHERE topic_id="636145" UNION SELECT * FROM gallery2 WHERE topic_id="718218" UNION SELECT * FROM gallery2 WHERE topic_id="156733"