[GitHub] carbondata issue #1479: [CARBONDATA-1690][DATAMAP] Clear datamap when renami...

[chenliang613]

Github user chenliang613 commented on the issue:

    https://github.com/apache/carbondata/pull/1479
  
    @xuchuanyin  your description is very clear, and thanks for your good 
contribution.
    
    @ravipesala  please check this PR.


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