thanks @Shu, (1). I want to delete duplicate in 1 second window frame if both attributes values (ie, device_no and device_value) already exists in past 1 sec. So if I will delete age off Duration (1 sec) , how will it work. (2). And the value of cache Entry identifier in which I am trying to detect duplicates based on 2 attributes (ie, device_no and device_value) which are separated by double colon. Is this the correct way of doing this
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