MySQL 8.0.39
Source Code Documentation
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A statement information item. More...
#include <sql_get_diagnostics.h>
Public Types | |
enum | Name { NUMBER , ROW_COUNT } |
The name of a statement information item. More... | |
Public Member Functions | |
Statement_information_item (Name name, Item *target) | |
Constructor, used to represent a statement information item. More... | |
Item * | get_value (THD *thd, const Diagnostics_area *da) |
Obtain value of this statement information item. More... | |
Public Member Functions inherited from Diagnostics_information_item | |
bool | set_value (THD *thd, Item **value) |
Set a value for this item. More... | |
Private Attributes | |
Name | m_name |
The name of this statement information item. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from Diagnostics_information_item | |
Diagnostics_information_item (Item *target) | |
Constructor, used to represent a diagnostics information item. More... | |
virtual | ~Diagnostics_information_item () |
Diagnostics_information_item objects are allocated in thd->mem_root. More... | |
A statement information item.
Constructor, used to represent a statement information item.
name | The name of this item. |
target | A target that gets the value of this item. |
Item * Statement_information_item::get_value | ( | THD * | thd, |
const Diagnostics_area * | da | ||
) |
Obtain value of this statement information item.
Obtain the value of this statement information item in the context of a given Diagnostics Area.
thd | The current thread. |
da | The Diagnostics Area. |
Item | representing the value. |
NULL | on error. |
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private |
The name of this statement information item.