mysql 保留的关键字

mysql> select precision from Product;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'precision from Product' at line 1
mysql> select `precision` from Product limit 5;
+-----------+
| precision |
+-----------+
|         2 |
|         2 |
|         2 |
|         2 |
|         2 |
+-----------+
5 rows in set (0.00 sec)