Give it a squeeze

SELECT * FROM gallery2 WHERE topic_id="756317" UNION SELECT * FROM gallery2 WHERE topic_id="1158614" UNION SELECT * FROM gallery2 WHERE topic_id="1718001" UNION SELECT * FROM gallery2 WHERE topic_id="1369108" UNION SELECT * FROM gallery2 WHERE topic_id="1146723" UNION SELECT * FROM gallery2 WHERE topic_id="1823938" UNION SELECT * FROM gallery2 WHERE topic_id="1076047" UNION SELECT * FROM gallery2 WHERE topic_id="959305" UNION SELECT * FROM gallery2 WHERE topic_id="1207338" UNION SELECT * FROM gallery2 WHERE topic_id="1658938" UNION SELECT * FROM gallery2 WHERE topic_id="271107" UNION SELECT * FROM gallery2 WHERE topic_id="198303" UNION SELECT * FROM gallery2 WHERE topic_id="1273296" UNION SELECT * FROM gallery2 WHERE topic_id="1425349" UNION SELECT * FROM gallery2 WHERE topic_id="1178300" UNION SELECT * FROM gallery2 WHERE topic_id="1038132"