Sql_cmd_signal represents a SIGNAL statement. More...

#include <sql_signal.h>

Inheritance diagram for Sql_cmd_signal:

Public Member Functions
	Sql_cmd_signal (const sp_condition_value cond, Set_signal_information set)
	Constructor, used to represent a SIGNAL statement. More...

	~Sql_cmd_signal () override=default

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

bool	execute (THD *thd) override
	Execute this SQL 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 bool	reprepare_on_execute_required () const
	Some SQL commands currently require re-preparation on re-execution of a prepared statement or stored procedure. 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 enum enum_sql_cmd_type	sql_cmd_type () const

virtual bool	is_single_table_plan () const

virtual bool	accept (THD , Select_lex_visitor )

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

virtual bool	is_bulk_load () const

virtual bool	are_dynamic_parameters_allowed () const

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

void	enable_secondary_storage_engine ()

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 ()

Additional Inherited Members
Protected Member Functions inherited from Sql_cmd_common_signal
	Sql_cmd_common_signal (const sp_condition_value cond, Set_signal_information set)
	Constructor. More...

	~Sql_cmd_common_signal () override=default

void	eval_defaults (THD thd, Sql_condition cond)
	Evaluate the condition items 'SQLSTATE', 'MYSQL_ERRNO', 'level' and 'MESSAGE_TEXT' default values for this statement. More...

int	eval_signal_informations (THD thd, Sql_condition cond)
	Evaluate each signal condition items for this statement. More...

Protected Member Functions inherited from Sql_cmd
	Sql_cmd ()

virtual	~Sql_cmd ()

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

Static Protected Member Functions inherited from Sql_cmd_common_signal
static void	assign_defaults (THD thd, Sql_condition cond, bool set_level_code, Sql_condition::enum_severity_level level, int sqlcode)
	Assign the condition items 'MYSQL_ERRNO', 'level' and 'MESSAGE_TEXT' default values of a condition. More...

Protected Attributes inherited from Sql_cmd_common_signal
const sp_condition_value *	m_cond
	The condition to signal or resignal. More...

Set_signal_information *	m_set_signal_information
	Collection of 'SET item = value' assignments in the SIGNAL/RESIGNAL statement. More...

Detailed Description

Sql_cmd_signal represents a SIGNAL statement.

Constructor & Destructor Documentation

◆ Sql_cmd_signal()

Sql_cmd_signal::Sql_cmd_signal	(	const sp_condition_value *	cond,
		Set_signal_information *	set
	)

inline

Constructor, used to represent a SIGNAL statement.

Parameters

cond	the SQL condition to signal (required).
set	the collection of signal information to signal.

◆ ~Sql_cmd_signal()

Sql_cmd_signal::~Sql_cmd_signal ( )

overridedefault

Member Function Documentation

◆ execute()

bool Sql_cmd_signal::execute ( THD * thd )

overridevirtual

Execute this SQL statement.

Parameters

thd	the current thread.

Returns: false if success, true if error

Implements Sql_cmd.

◆ sql_command_code()

enum_sql_command Sql_cmd_signal::sql_command_code ( ) const

inlineoverridevirtual

Return the command code for this statement.