Precisa de ajuda em unpivot no mysql com várias colunas de data

SELECT GROUP_CONCAT(
  CONCAT(
    'SELECT `Product Type`, ', 
       QUOTE(COLUMN_NAME), ' AS `Date`, ',
       '`', COLUMN_NAME, '` AS `Revenue` ',
    'FROM testing_unpivot'
  ) SEPARATOR ' UNION ALL '
)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'testing_unpivot'
AND COLUMN_NAME <> 'Product Type';

SELECT `Product Type`, '01-31-2016' AS `Date`, `01-31-2016` AS `Revenue` FROM testing_unpivot 
UNION ALL 
SELECT `Product Type`, '02-29-2016' AS `Date`, `02-29-2016` AS `Revenue` FROM testing_unpivot 
UNION ALL 
SELECT `Product Type`, '12-31-2015' AS `Date`, `12-31-2015` AS `Revenue` FROM testing_unpivot

+--------------+------------+---------+
| Product Type | Date       | Revenue |
+--------------+------------+---------+
| A            | 01-31-2016 |  400.00 |
| B            | 01-31-2016 |   86.88 |
| C            | 01-31-2016 |  400.00 |
| D            | 01-31-2016 |   55.00 |
| E            | 01-31-2016 |  455.00 |
| A            | 02-29-2016 |   55.00 |
| B            | 02-29-2016 |   55.00 |
| C            | 02-29-2016 |   55.00 |
| D            | 02-29-2016 |   11.00 |
| E            | 02-29-2016 |   22.00 |
| A            | 12-31-2015 |  100.00 |
| B            | 12-31-2015 |    0.00 |
| C            | 12-31-2015 |  200.00 |
| D            | 12-31-2015 |  300.00 |
| E            | 12-31-2015 |  400.00 |
+--------------+------------+---------+