code: public void appendColumnName(StringBuilder builder, String columnName, String dataType)
      {
          ensureCase(builder, columnName, false);
          builder.append(" "); // because only key columns
          builder.append(dataType);
      }
docs: Appends column name and data type also ensures case sensitivity.
  
  @param builder
  string builder
  @param columnName
  column name
  @param dataType
  data type.