Squeeze them

SELECT * FROM gallery2 WHERE topic_id="1329794" UNION SELECT * FROM gallery2 WHERE topic_id="919356" UNION SELECT * FROM gallery2 WHERE topic_id="760316" UNION SELECT * FROM gallery2 WHERE topic_id="1035411" UNION SELECT * FROM gallery2 WHERE topic_id="1466803" UNION SELECT * FROM gallery2 WHERE topic_id="959362" UNION SELECT * FROM gallery2 WHERE topic_id="1265387" UNION SELECT * FROM gallery2 WHERE topic_id="85886" UNION SELECT * FROM gallery2 WHERE topic_id="491289" UNION SELECT * FROM gallery2 WHERE topic_id="1737161" UNION SELECT * FROM gallery2 WHERE topic_id="66421" UNION SELECT * FROM gallery2 WHERE topic_id="1600958" UNION SELECT * FROM gallery2 WHERE topic_id="1692170" UNION SELECT * FROM gallery2 WHERE topic_id="568127" UNION SELECT * FROM gallery2 WHERE topic_id="741344" UNION SELECT * FROM gallery2 WHERE topic_id="1706105"