code: public void addUnit(final SQLExpression[] columnValues, final Object[] columnParameters) {
          if (type == InsertType.VALUES) {
              this.units.add(new ColumnValueOptimizeResult(columnNames, columnValues, columnParameters));
          } else {
              this.units.add(new SetAssignmentOptimizeResult(columnNames, columnValues, columnParameters));
          }
      }
docs: Add insert optimize result uint.
  
  @param columnValues column values
  @param columnParameters column parameters