Sql_cmd_get_diagnostics represents a GET DIAGNOSTICS statement. More...

#include <sql_get_diagnostics.h>

Inheritance diagram for Sql_cmd_get_diagnostics:

Public Member Functions
	Sql_cmd_get_diagnostics (Diagnostics_information *info)
	Constructor, used to represent a GET DIAGNOSTICS statement. More...

enum_sql_command	sql_command_code () const override
	Return the command code for this statement. More...

bool	execute (THD *thd) override
	Execute this GET DIAGNOSTICS statement. More...

Public Member Functions inherited from Sql_cmd
bool	needs_explicit_preparation () const

bool	is_regular () const

bool	is_prepared () const

virtual bool	prepare (THD *)
	Prepare this SQL statement. More...

virtual void	cleanup (THD *)
	Command-specific reinitialization before execution of prepared statement. More...

void	set_owner (Prepared_statement *stmt)
	Set the owning prepared statement. More...

Prepared_statement *	owner () const
	Get the owning prepared statement. More...

void	set_as_part_of_sp ()
	Mark statement as part of procedure. More...

bool	is_part_of_sp () const

virtual bool	is_dml () const

virtual bool	is_single_table_plan () const

virtual bool	accept (THD , Select_lex_visitor )

virtual const MYSQL_LEX_CSTRING *	eligible_secondary_storage_engine () const
	Is this statement of a type and on a form that makes it eligible for execution in a secondary storage engine? More...

void	disable_secondary_storage_engine ()
	Disable use of secondary storage engines in this statement. More...

bool	secondary_storage_engine_disabled () const
	Has use of secondary storage engines been disabled for this statement? More...

void	use_secondary_storage_engine (const handlerton *hton)
	Mark the current statement as using a secondary storage engine. More...

bool	using_secondary_storage_engine () const
	Is this statement using a secondary storage engine? More...

const handlerton *	secondary_engine () const
	Get the handlerton of the secondary engine that is used for executing this statement, or nullptr if a secondary engine is not used. More...

void	set_optional_transform_prepared (bool value)

bool	is_optional_transform_prepared ()

Private Attributes
Diagnostics_information *	m_info
	The information to be obtained. More...

Additional Inherited Members
Protected Member Functions inherited from Sql_cmd
	Sql_cmd ()

virtual	~Sql_cmd ()

void	set_prepared ()
	Set this statement as prepared. More...

Detailed Description

Sql_cmd_get_diagnostics represents a GET DIAGNOSTICS statement.

The GET DIAGNOSTICS statement retrieves exception or completion condition information from a Diagnostics Area, usually pertaining to the last non-diagnostic SQL statement that was executed.

Constructor & Destructor Documentation

◆ Sql_cmd_get_diagnostics()

Sql_cmd_get_diagnostics::Sql_cmd_get_diagnostics ( Diagnostics_information * info )

inline

Constructor, used to represent a GET DIAGNOSTICS statement.

Parameters

info	Diagnostics information to be obtained.

Member Function Documentation

◆ execute()

bool Sql_cmd_get_diagnostics::execute ( THD * thd )

overridevirtual

Execute this GET DIAGNOSTICS statement.

Parameters

thd	The current thread.

Remarks: Errors or warnings occurring during the execution of the GET DIAGNOSTICS statement should not affect the Diagnostics Area of a previous statement as the diagnostics information there would be wiped out. Thus, in order to preserve the contents of the Diagnostics Area from which information is being retrieved, the GET DIAGNOSTICS statement is executed under a separate Diagnostics Area. If any errors or warnings occur during the execution of the GET DIAGNOSTICS statement, these error or warnings (conditions) are appended to the list of the original Diagnostics Area. The only exception to this is fatal errors, which must always cause the statement to fail.

Return values

false	on success.
true	on error

Implements Sql_cmd.

◆ sql_command_code()

enum_sql_command Sql_cmd_get_diagnostics::sql_command_code ( ) const

inlineoverridevirtual

Return the command code for this statement.

Implements Sql_cmd.

Member Data Documentation

◆ m_info

Diagnostics_information* Sql_cmd_get_diagnostics::m_info

private

The information to be obtained.

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

sql/sql_get_diagnostics.h
sql/sql_get_diagnostics.cc

Public Member Functions

Private Attributes

Additional Inherited Members