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

[jackylk]

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

    https://github.com/apache/carbondata/pull/2644#discussion_r211855246
  
    --- Diff: 
streaming/src/main/java/org/apache/carbondata/streaming/CarbonStreamRecordWriter.java
 ---
    @@ -171,9 +179,57 @@ private void initializeAtFirstRow() throws 
IOException, InterruptedException {
           writeFileHeader();
         }
     
    +    initializeStatsCollector();
    +
         isFirstRow = false;
       }
     
    +  private void initializeStatsCollector() {
    +    // initialize
    --- End diff --
    
    please explain why the length is isNoDictionaryDimensionColumn.length


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