in_datetime Class Reference

#include <item_cmpfunc.h>

Inheritance diagram for in_datetime:

Public Member Functions
	in_datetime (MEM_ROOT *mem_root, Item *warn_item_arg, uint elements)
Item *	create_item (MEM_ROOT *mem_root) const override
	Create an instance of Item_{type} (e.g. More...
Public Member Functions inherited from In_vector_int
	In_vector_int (MEM_ROOT *mem_root, uint elements)
void	value_to_item (uint pos, Item *item) const override
	Store the value at position pos into provided item object. More...
bool	find_item (Item *item) override
	Calls item->val_int() or item->val_str() etc. More...
bool	compare_elems (uint pos1, uint pos2) const override
	Compare values number pos1 and pos2 for equality. More...
Public Member Functions inherited from In_vector
	In_vector (uint elements)
	See Item_func_in::resolve_type() for why we need both count and used_count. More...
virtual	~In_vector ()=default
virtual bool	is_row_result () const
bool	fill (Item **items, uint item_count)
	Fill the vector by evaluating the items passed as arguments. More...
virtual void	cleanup ()

Private Member Functions
bool	set (uint pos, Item *item) override
	Evaluate item and set value into element "pos" of the vector. More...
bool	val_item (Item *item, packed_longlong *result) override

Private Attributes
Item *	warn_item
	An item used to issue warnings. More...

Additional Inherited Members
Public Attributes inherited from In_vector
uint	m_used_size {0}
	The actual size of the vector (NULL may be ignored) More...
Protected Attributes inherited from In_vector_int
Mem_root_array< packed_longlong >	base

Constructor & Destructor Documentation

in_datetime()

in_datetime::in_datetime ( MEM_ROOT *  mem_root, Item *  warn_item_arg, uint  elements  )

inline

Member Function Documentation

create_item()

Item * in_datetime::create_item ( MEM_ROOT *  mem_root ) const

inlineoverridevirtual

Create an instance of Item_{type} (e.g.

Item_decimal) constant object which type allows it to hold an element of this vector without any conversions. The purpose of this function is to be able to get elements of this vector in form of Item_xxx constants without creating Item_xxx object for every array element you get (i.e. this implements "FlyWeight" pattern)

Parameters

mem_root

Where to allocate the Item.

Reimplemented from In_vector_int.

set()

bool in_datetime::set ( uint  pos, Item *  item  )

overrideprivatevirtual

Evaluate item and set value into element "pos" of the vector.

Parameters

pos	element number in vector
item	item to evaluate

Returns

false if successful evaluation and not null value, true otherwise

Reimplemented from In_vector_int.

val_item()

bool in_datetime::val_item ( Item *  item, packed_longlong *  result  )

overrideprivatevirtual

Reimplemented from In_vector_int.

Member Data Documentation

warn_item

Item* in_datetime::warn_item

private

An item used to issue warnings.

---

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

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