[GitHub] carbondata issue #1749: [CARBONDATA-1968] Add external table support

[jackylk]

Github user jackylk commented on the issue:

    https://github.com/apache/carbondata/pull/1749
  
    I think the first commit of these 5 commits (hash code 
177d6d26c58e0d06c2cdb93d4a03a27472884559) need to be drop, and squash other 4 
commits.


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