cep - Esper: "time_order" seems not working -

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I am using Esper (Event Processing Engine), the EPL query is: 

  Select * for event * .ext: time_order (timestamp_event, 10000 minutes) where duration & gt; 10   
 But "Taimstamp_ivent has not ordered output by":  
  id int = 1, Taimstamp_avent = 1412686800000, duration = 30 ID Int = 4, timestamp_event = 1412685900000, duration = 70 id int = 2, timestamp_event = 1412688600000, duration = 45 id int = 3, timestamp_event = 1412689500000, duration = 60 id int = 5, timestamp_event = 1412636400000, duration = 15  < / Pre  
 I think the problem is on the asap configuration, let's consider a simple query:  
  
 Code> select * to event.win : Time (10 seconds) ) [Id_event   
 By order code "upate" method UpdateListener:  
  public void update (Iventban [] new events, Iventben] Old Event } {EventBen Event = New Avant [0]; System.out.println ("id int =" + event.get ("id_event") + ", timestamp_envent =" + ((long) event.get ("timestamp_event")). ToString ());   
 But the output is ordered by non "id_event"!  
  id event = 1, timestamp_event = 1412686800000 ID event = 4, timestamp_event = 1412687700000 ID event = 2, timestamp_event = 1412687100000 ID event = 3, timestamp_event = 1412687400000 ID event = 5, timestamp_event = 1412688000000   
 It seems that "order by" does not work, how is it possible?  
  
 
 
 The document asks to select rstream because dropout events are ordered and events Is not recorded.

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