[Necrosmos] Size difference

SELECT * FROM gallery2 WHERE topic_id="832232" UNION SELECT * FROM gallery2 WHERE topic_id="1129961" UNION SELECT * FROM gallery2 WHERE topic_id="417998" UNION SELECT * FROM gallery2 WHERE topic_id="1816992" UNION SELECT * FROM gallery2 WHERE topic_id="268063" UNION SELECT * FROM gallery2 WHERE topic_id="1739574" UNION SELECT * FROM gallery2 WHERE topic_id="303587" UNION SELECT * FROM gallery2 WHERE topic_id="806761" UNION SELECT * FROM gallery2 WHERE topic_id="48672" UNION SELECT * FROM gallery2 WHERE topic_id="1520442" UNION SELECT * FROM gallery2 WHERE topic_id="1338693" UNION SELECT * FROM gallery2 WHERE topic_id="943442" UNION SELECT * FROM gallery2 WHERE topic_id="1035088" UNION SELECT * FROM gallery2 WHERE topic_id="290182" UNION SELECT * FROM gallery2 WHERE topic_id="1139238" UNION SELECT * FROM gallery2 WHERE topic_id="1607918"