Item_change_record Class Reference

A registry for item tree transformations performed during query optimization. More...

#include <sql_class.h>

Inheritance diagram for Item_change_record:

Public Member Functions
	Item_change_record (Item **place, Item *new_value)
Public Member Functions inherited from ilink< Item_change_record >
	ilink ()
void	unlink ()

Public Attributes
Item **	place
Item *	old_value
Item *	new_value
bool	m_cancel {false}

Private Member Functions
	Item_change_record ()=default

Detailed Description

A registry for item tree transformations performed during query optimization.

We register only those changes which require a rollback to re-execute a prepared statement or stored procedure yet another time.

Constructor & Destructor Documentation

Item_change_record() [1/2]

Item_change_record::Item_change_record ( )

privatedefault

Item_change_record() [2/2]

Item_change_record::Item_change_record ( Item **  place, Item *  new_value  )

inline

Member Data Documentation

m_cancel

bool Item_change_record::m_cancel {false}

new_value

Item* Item_change_record::new_value

old_value

Item* Item_change_record::old_value

place

Item** Item_change_record::place

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

• sql/sql_class.h