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Item_func_opt_neg Class Reference
Inheritance diagram for Item_func_opt_neg:
Item_int_func Item_func Item_result_field Item Item_func_between Item_func_in

List of all members.

Public Member Functions

 Item_func_opt_neg (Item *a, Item *b, Item *c)
 Item_func_opt_neg (List< Item > &list)
void negate ()
void top_level_item ()
Itemneg_transformer (THD *thd)
bool eq (const Item *item, bool binary_cmp) const
bool subst_argument_checker (uchar **arg)

Public Attributes

bool negated
bool pred_level

Member Function Documentation

bool Item_func_opt_neg::eq ( const Item item,
bool  binary_cmp 
) const [virtual]

This function is called when:

  • Comparing items in the WHERE clause (when doing where optimization)
  • When trying to find an ORDER BY/GROUP BY item in the SELECT part
  • When matching fields in multiple equality objects (Item_equal)

Reimplemented from Item_func.

The documentation for this class was generated from the following files:
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