Transactional_ddl_context Class Reference

This class keeps the context of transactional DDL statements. More...

#include <sql_class.h>

Public Member Functions
	Transactional_ddl_context (THD *thd)
	~Transactional_ddl_context ()
void	init (dd::String_type db, dd::String_type tablename, const handlerton *hton)
	Initialize the transactional ddl context when executing CREATE TABLE ... SELECT command with engine which supports atomic DDL. More...
bool	inited ()
void	rollback ()
	Remove the table share used while creating the table, if the transaction is being rolledback. More...
void	post_ddl ()
	End the transactional context created by calling post ddl hook for engine on which table is being created. More...

Private Attributes
THD *	m_thd {nullptr}
const handlerton *	m_hton {nullptr}
dd::String_type	m_db {}
dd::String_type	m_tablename {}

Detailed Description

This class keeps the context of transactional DDL statements.

Currently only CREATE TABLE with START TRANSACTION uses this context.

Constructor & Destructor Documentation

Transactional_ddl_context()

Transactional_ddl_context::Transactional_ddl_context ( THD *  thd )

inlineexplicit

~Transactional_ddl_context()

Transactional_ddl_context::~Transactional_ddl_context ( )

inline

Member Function Documentation

init()

void Transactional_ddl_context::init	(	dd::String_type	db,
		dd::String_type	tablename,
		const handlerton *	hton
	)

Initialize the transactional ddl context when executing CREATE TABLE ... SELECT command with engine which supports atomic DDL.

Parameters

db	Schema name in which table is being created.
tablename	Table name being created.
hton	Handlerton representing engine used for table.

inited()

bool Transactional_ddl_context::inited ( )

inline

post_ddl()

void Transactional_ddl_context::post_ddl

(

)

End the transactional context created by calling post ddl hook for engine on which table is being created.

This is done after transaction rollback and commit.

rollback()

void Transactional_ddl_context::rollback

(

)

Remove the table share used while creating the table, if the transaction is being rolledback.

Member Data Documentation

m_db

dd::String_type Transactional_ddl_context::m_db {}

private

m_hton

const handlerton* Transactional_ddl_context::m_hton {nullptr}

private

m_tablename

dd::String_type Transactional_ddl_context::m_tablename {}

private

m_thd

THD* Transactional_ddl_context::m_thd {nullptr}

private

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

• sql/sql_class.h
• sql/sql_class.cc