[GitHub] carbondata issue #3024: [CARBONDATA-3230] Add alter test case for datasource

[xubo245]

Github user xubo245 commented on the issue:

    https://github.com/apache/carbondata/pull/3024
  
    @ravipesala add test case in this PR:
    
    1.add column
    2.drop column
    3.rename column
    4.change datatype of column
    
    Add test case for carbon and parquet.


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