[GitHub] madlib pull request #204: Added additional distance metrics for k-NN: Jira-1...

[iyerr3]

Github user iyerr3 commented on a diff in the pull request:

    https://github.com/apache/madlib/pull/204#discussion_r152420416
  
    --- Diff: src/ports/postgres/modules/knn/knn.py_in ---
    @@ -155,6 +155,9 @@ def knn(schema_madlib, point_source, point_column_name, 
point_id, label_column_n
             if output_neighbors is None:
                 output_neighbors = True
     
    +        if not fn_dist or fn_dist is None:
    --- End diff --
    
    again, only need the `if not fn_dist` 


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