[M]

SELECT * FROM gallery2 WHERE topic_id="1509215" UNION SELECT * FROM gallery2 WHERE topic_id="839501" UNION SELECT * FROM gallery2 WHERE topic_id="1345603" UNION SELECT * FROM gallery2 WHERE topic_id="1793574" UNION SELECT * FROM gallery2 WHERE topic_id="34207" UNION SELECT * FROM gallery2 WHERE topic_id="171522" UNION SELECT * FROM gallery2 WHERE topic_id="1792773" UNION SELECT * FROM gallery2 WHERE topic_id="343627" UNION SELECT * FROM gallery2 WHERE topic_id="209884" UNION SELECT * FROM gallery2 WHERE topic_id="255223" UNION SELECT * FROM gallery2 WHERE topic_id="1441501" UNION SELECT * FROM gallery2 WHERE topic_id="335179" UNION SELECT * FROM gallery2 WHERE topic_id="677399" UNION SELECT * FROM gallery2 WHERE topic_id="100833" UNION SELECT * FROM gallery2 WHERE topic_id="1082300" UNION SELECT * FROM gallery2 WHERE topic_id="582814"