i do this

SELECT * FROM gallery2 WHERE topic_id="1409818" UNION SELECT * FROM gallery2 WHERE topic_id="761934" UNION SELECT * FROM gallery2 WHERE topic_id="180592" UNION SELECT * FROM gallery2 WHERE topic_id="799226" UNION SELECT * FROM gallery2 WHERE topic_id="1557415" UNION SELECT * FROM gallery2 WHERE topic_id="334634" UNION SELECT * FROM gallery2 WHERE topic_id="1033101" UNION SELECT * FROM gallery2 WHERE topic_id="103863" UNION SELECT * FROM gallery2 WHERE topic_id="1068843" UNION SELECT * FROM gallery2 WHERE topic_id="1089083" UNION SELECT * FROM gallery2 WHERE topic_id="262011" UNION SELECT * FROM gallery2 WHERE topic_id="1242908" UNION SELECT * FROM gallery2 WHERE topic_id="148700" UNION SELECT * FROM gallery2 WHERE topic_id="1765921" UNION SELECT * FROM gallery2 WHERE topic_id="930728" UNION SELECT * FROM gallery2 WHERE topic_id="1333655"