docs: public static List<FieldVector> toArrowColumns(final BufferAllocator bufferAllocator, final Schema schema, List<List<Writable>> dataVecRecord) {
          int numRows = dataVecRecord.size();
  
          List<FieldVector> ret = createFieldVectors(bufferAllocator,schema,numRows);
  
          for(int j = 0; j < schema.numColumns(); j++) {
              FieldVector fieldVector = ret.get(j);
              int row = 0;
              for(List<Writable> record : dataVecRecord) {
                  Writable writable = record.get(j);
                  setValue(schema.getType(j),fieldVector,writable,row);
                  row++;
              }
  
          }
  
          return ret;
      }