Item_bool_func2 Class Reference

Inheritance diagram for Item_bool_func2:

List of all members.

Public Member Functions
	Item_bool_func2 (Item *a, Item *b)
void	fix_length_and_dec ()
int	set_cmp_func ()
optimize_type	select_optimize () const
virtual enum Functype	rev_functype () const
bool	have_rev_func () const
virtual void	print (String *str, enum_query_type query_type)
bool	is_null ()
const CHARSET_INFO *	compare_collation ()
void	top_level_item ()
void	cleanup ()
Protected Attributes
Arg_comparator	cmp
bool	abort_on_null
Friends
class	Arg_comparator

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Member Function Documentation

virtual void Item_bool_func2::print	(	String *	str,
		enum_query_type	query_type
	)		[inline, virtual]

This method is used for to:

• to generate a view definition query (SELECT-statement);
• to generate a SQL-query for EXPLAIN EXTENDED;
• to generate a SQL-query to be shown in INFORMATION_SCHEMA;
• debug.

For more information about view definition query, INFORMATION_SCHEMA query and why they should be generated from the Item-tree,

See also:

mysql_register_view().

Reimplemented from Item_func.

Reimplemented in Item_func_nullif, and Item_func_strcmp.

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

• item_cmpfunc.h
• item_cmpfunc.cc