| 1724 | class Item_null :public Item_basic_constant |
| 1725 | { |
| 1726 | void init() |
| 1727 | { |
| 1728 | maybe_null= null_value= TRUE; |
| 1729 | max_length= 0; |
| 1730 | fixed= 1; |
| 1731 | collation.set(&my_charset_bin, DERIVATION_IGNORABLE); |
| 1732 | } |
| 1733 | public: |
| 1734 | Item_null() |
| 1735 | { |