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Commits

  1. Remove obsolete comments about functional dependencies

  1. Remove old comments in dependencies.c and README.dependencies

    atorikoshi <torikoshi_atsushi_z2@lab.ntt.co.jp> — 2017-06-26T07:29:19Z

    Hi,
    
    I found some comments which are not implemented.
    
    As far as I have examined, these comments refer to min_group_size,
    but min_group_size was decided not to adopt and removed[1], so
    it seems these comments also should be removed.
    
    [1]  
    https://www.postgresql.org/message-id/CAKJS1f_vUck+qbxqsh4m_FNs+D4XA2KPyvvh0zYMjVg-eEHeAQ@mail.gmail.com
    
    >>> 1) DEPENDENCY_MIN_GROUP_SIZE
    >>>
    >>> I'm not sure we still need the min_group_size, when evaluating
    >>> dependencies. It was meant to deal with 'noisy' data, but I think it
    >>> after switching to the 'degree' it might actually be a bad idea.
    >
    >Yeah, I'd wondered about this when I first started testing the patch.
    >I failed to get any functional dependencies because my values were too
    >unique. Seems I'd gotten a bit used to it, and in the end thought that
    >if the values are unique enough then they won't suffer as much from
    >the underestimation problem you're trying to solve here.
    >
    >I've removed that part of the code now.
    
    
    Attached patch removes the comments about min_group_size.
    
    Regards,
    
    -- 
    Atsushi Torikoshi
    NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    NTT Open Source Software Center
    
  2. Re: Remove old comments in dependencies.c and README.dependencies

    Alvaro Herrera <alvherre@2ndquadrant.com> — 2017-07-26T15:44:13Z

    atorikoshi wrote:
    
    > Attached patch removes the comments about min_group_size.
    
    Agreed.  Removed those comments.  Thanks for the patch.
    
    -- 
    Álvaro Herrera                https://www.2ndQuadrant.com/
    PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
    
    
    
  3. Re: Remove old comments in dependencies.c and README.dependencies

    atorikoshi <torikoshi_atsushi_z2@lab.ntt.co.jp> — 2017-07-27T09:08:12Z

     > Agreed.  Removed those comments.  Thanks for the patch.
    
    Thanks!
    
    On 2017/07/27 0:44, Alvaro Herrera wrote:
    > atorikoshi wrote:
    >
    >> Attached patch removes the comments about min_group_size.
    >
    > Agreed.  Removed those comments.  Thanks for the patch.
    >
    
    -- 
    Atsushi Torikoshi
    NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    NTT Open Source Software Center