[GitHub] zeppelin issue #2685: Fix unqiue algo for the web side in pivot.js file.

[liguohuicmss]

Github user liguohuicmss commented on the issue:

    https://github.com/apache/zeppelin/pull/2685
  
    Thanks. The test is as following.
    First. When dragging item in chart settings. The item `still` cannot 
duplicated in the same groups:
    ![untitled 
project](https://user-images.githubusercontent.com/5969176/33199214-4c420cf8-d12a-11e7-87ce-f9d5be9040c8.gif)
    
    Second. I test this method in nodejs environment: 
    
![201711240311281511507488261_small](https://user-images.githubusercontent.com/5969176/33199291-a14632c4-d12a-11e7-92aa-66538c362da7.gif)
    
    



---