Expectation

SELECT * FROM gallery2 WHERE topic_id="641985" UNION SELECT * FROM gallery2 WHERE topic_id="721429" UNION SELECT * FROM gallery2 WHERE topic_id="752725" UNION SELECT * FROM gallery2 WHERE topic_id="339078" UNION SELECT * FROM gallery2 WHERE topic_id="761743" UNION SELECT * FROM gallery2 WHERE topic_id="946503" UNION SELECT * FROM gallery2 WHERE topic_id="782923" UNION SELECT * FROM gallery2 WHERE topic_id="1257138" UNION SELECT * FROM gallery2 WHERE topic_id="264843" UNION SELECT * FROM gallery2 WHERE topic_id="459029" UNION SELECT * FROM gallery2 WHERE topic_id="1077035" UNION SELECT * FROM gallery2 WHERE topic_id="208704" UNION SELECT * FROM gallery2 WHERE topic_id="1083499" UNION SELECT * FROM gallery2 WHERE topic_id="1405122" UNION SELECT * FROM gallery2 WHERE topic_id="1658729" UNION SELECT * FROM gallery2 WHERE topic_id="176823"