An utility struct for Attachable_trx. More...

Public Member Functions
	Transaction_state ()

	~Transaction_state ()

void	backup (THD *thd)

void	restore (THD *thd)

Public Attributes
enum_sql_command	m_sql_command
	SQL-command. More...

Query_tables_list *	m_query_tables_list

Open_tables_backup	m_open_tables_state
	Open-tables state. More...

sql_mode_t	m_sql_mode
	SQL_MODE. More...

enum_tx_isolation	m_tx_isolation
	Transaction isolation level. More...

Prealloced_array< Ha_data, PREALLOC_NUM_HA >	m_ha_data
	Ha_data array. More...

Transaction_ctx *	m_trx
	Transaction_ctx instance. More...

bool	m_tx_read_only
	Transaction read-only state. More...

ulonglong	m_thd_option_bits
	THD options. More...

PSI_transaction_locker *	m_transaction_psi
	Current transaction instrumentation. More...

uint	m_server_status
	Server status flags. More...

bool	m_in_lock_tables
	THD::in_lock_tables value. More...

bool	m_time_zone_used
	Current time zone (i.e. More...

bool	m_transaction_rollback_request
	Transaction rollback request flag. More...

Detailed Description

An utility struct for Attachable_trx.

Constructor & Destructor Documentation

◆ Transaction_state()

THD::Transaction_state::Transaction_state ( )

◆ ~Transaction_state()

THD::Transaction_state::~Transaction_state ( )

Member Function Documentation

◆ backup()

void THD::Transaction_state::backup ( THD * thd )

◆ restore()

void THD::Transaction_state::restore ( THD * thd )

Member Data Documentation

◆ m_ha_data

Prealloced_array<Ha_data, PREALLOC_NUM_HA> THD::Transaction_state::m_ha_data

Ha_data array.

◆ m_in_lock_tables

bool THD::Transaction_state::m_in_lock_tables

THD::in_lock_tables value.

◆ m_open_tables_state

Open_tables_backup THD::Transaction_state::m_open_tables_state

Open-tables state.

◆ m_query_tables_list

Query_tables_list* THD::Transaction_state::m_query_tables_list

◆ m_server_status

uint THD::Transaction_state::m_server_status

Server status flags.

◆ m_sql_command

enum_sql_command THD::Transaction_state::m_sql_command

SQL-command.

◆ m_sql_mode

sql_mode_t THD::Transaction_state::m_sql_mode

SQL_MODE.

◆ m_thd_option_bits

ulonglong THD::Transaction_state::m_thd_option_bits

THD options.

◆ m_time_zone_used

bool THD::Transaction_state::m_time_zone_used

Current time zone (i.e.

@session.time_zone) usage indicator.

Saving it allows data-dictionary code to read timestamp values as datetimes from system tables without disturbing user's statement.

TODO: We need to change DD code not to use @session.time_zone at all and stick to UTC for internal storage of timestamps in DD objects.

◆ m_transaction_psi

PSI_transaction_locker* THD::Transaction_state::m_transaction_psi

Current transaction instrumentation.

◆ m_transaction_rollback_request

bool THD::Transaction_state::m_transaction_rollback_request

Transaction rollback request flag.

InnoDB can try to access table definition while rolling back regular transaction. So we need to be able to start attachable transaction without being affected by, and affecting, the rollback state of regular transaction.

◆ m_trx

Transaction_ctx* THD::Transaction_state::m_trx

Transaction_ctx instance.

◆ m_tx_isolation

enum_tx_isolation THD::Transaction_state::m_tx_isolation

Transaction isolation level.

◆ m_tx_read_only

bool THD::Transaction_state::m_tx_read_only

Transaction read-only state.

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

sql/sql_class.h
sql/sql_class.cc

Public Member Functions

Public Attributes