[GitHub] carbondata issue #2906: [CARBONDATA-3088][Compaction] support prefetch for c...

[xuchuanyin]

Github user xuchuanyin commented on the issue:

    https://github.com/apache/carbondata/pull/2906
  
    Please note that this PR is nearly the modification from PR #2133 plus that 
we meld the `convertRow` step to the backup buffer procedure.


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