cmp_item_row Class Reference

#include <item_cmpfunc.h>

Inheritance diagram for cmp_item_row:

Public Member Functions
	cmp_item_row ()
	cmp_item_row (THD *thd, Item *item)
	~cmp_item_row () override
	cmp_item_row (cmp_item_row &&other)
void	store_value (Item *item) override
int	cmp (Item *arg) override
int	compare (const cmp_item *arg) const override
cmp_item *	make_same () override
void	store_value_by_template (cmp_item *tmpl, Item *) override
void	set_comparator (uint col, cmp_item *comparator)
Public Member Functions inherited from cmp_item
	cmp_item ()=default
virtual	~cmp_item ()=default

Private Member Functions
bool	alloc_comparators (THD *thd, Item *item)
	Allocate comparator objects. More...

Private Attributes
cmp_item **	comparators
uint	n

Additional Inherited Members
Static Public Member Functions inherited from cmp_item
static cmp_item *	get_comparator (Item_result result_type, const Item *item, const CHARSET_INFO *cs)
	Find the appropriate comparator for the given type. More...

Constructor & Destructor Documentation

cmp_item_row() [1/3]

cmp_item_row::cmp_item_row ( )

inline

cmp_item_row() [2/3]

cmp_item_row::cmp_item_row ( THD *  thd, Item *  item  )

inline

~cmp_item_row()

cmp_item_row::~cmp_item_row ( )

override

cmp_item_row() [3/3]

cmp_item_row::cmp_item_row ( cmp_item_row &&  other )

inline

Member Function Documentation

alloc_comparators()

bool cmp_item_row::alloc_comparators ( THD *  thd, Item *  item  )

private

Allocate comparator objects.

Parameters

thd	Thread descriptor
item	Item to allocate comparator objects for

Return values

false

on success, true on error (OOM)

cmp()

int cmp_item_row::cmp ( Item *  item )

overridevirtual

Returns

result (true, false or UNKNOWN) of "stored argument's value <> item's value"

Implements cmp_item.

compare()

int cmp_item_row::compare ( const cmp_item *  arg ) const

overridevirtual

Implements cmp_item.

make_same()

cmp_item * cmp_item_row::make_same ( )

overridevirtual

Implements cmp_item.

set_comparator()

void cmp_item_row::set_comparator ( uint  col, cmp_item *  comparator  )

inline

store_value()

void cmp_item_row::store_value ( Item *  item )

overridevirtual

Implements cmp_item.

store_value_by_template()

void cmp_item_row::store_value_by_template ( cmp_item *  tmpl, Item *  item  )

overridevirtual

Reimplemented from cmp_item.

Member Data Documentation

comparators

cmp_item** cmp_item_row::comparators

private

n

uint cmp_item_row::n

private

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

• sql/item_cmpfunc.h
• sql/item_cmpfunc.cc