[GitHub] carbondata pull request #2644: [CARBONDATA-2853] Implement file-level min/ma...

[xuchuanyin]

Github user xuchuanyin commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/2644#discussion_r211854887
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/util/ByteUtil.java 
---
    @@ -669,4 +666,44 @@ public static int putBytes(byte[] tgtBytes, int 
tgtOffset, byte[] srcBytes, int
         return flattenedData;
       }
     
    +  /**
    +   * perform XOR operation on the value, and convert it to byte array for 
sorting
    --- End diff --
    
    please add description for this method and the scenario


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