[GitHub] carbondata pull request #2348: [CARBONDATA-2546] It will throw exception whe...

[jackylk]

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

    https://github.com/apache/carbondata/pull/2348#discussion_r191297356
  
    --- Diff: 
hadoop/src/main/java/org/apache/carbondata/hadoop/api/CarbonInputFormat.java ---
    @@ -190,6 +190,19 @@ public static void setFilterPredicates(Configuration 
configuration, Expression f
         }
       }
     
    +  public static void setColumnProjection(Configuration configuration, 
String[] projectionColumns) {
    +    if (projectionColumns == null || projectionColumns.length < 1) {
    +      return;
    --- End diff --
    
    should throw exception


---