Rows query event type, which is a subclass of the Ignorable_event, to record the original query for the rows events in RBR. More...

#include <rows_event.h>

Inheritance diagram for mysql::binlog::event::Rows_query_event:

[legend]

Public Member Functions
	Rows_query_event (const char buf, const Format_description_event fde)
	It is used to write the original query in the binlog file in case of RBR when the session flag binlog_rows_query_log_events is set. More...

	Rows_query_event ()
	It is the minimal constructor, and all it will do is set the type_code as ROWS_QUERY_LOG_EVENT in the header object in Binary_log_event. More...

	~Rows_query_event () override

Public Member Functions inherited from mysql::binlog::event::Ignorable_event
	Ignorable_event (Log_event_type type_arg=IGNORABLE_LOG_EVENT)
	The minimal constructor and all it will do is set the type_code as IGNORABLE_LOG_EVENT in the header object in Binary_log_event. More...

	Ignorable_event (const char buf, const Format_description_event fde)

Public Member Functions inherited from mysql::binlog::event::Binary_log_event
virtual	~Binary_log_event ()=0

	Binary_log_event (const Binary_log_event &)=default

	Binary_log_event (Binary_log_event &&)=default

Binary_log_event &	operator= (const Binary_log_event &)=default

Binary_log_event &	operator= (Binary_log_event &&)=default

enum Log_event_type	get_event_type () const
	Helper method. More...

const Log_event_header *	header () const
	Return a const pointer to the header of the log event. More...

Log_event_header *	header ()
	Return a non-const pointer to the header of the log event. More...

const Log_event_footer *	footer () const
	Return a const pointer to the footer of the log event. More...

Log_event_footer *	footer ()
	Return a non-const pointer to the footer of the log event. More...

Event_reader &	reader ()
	Returns a reference to the event Event_reader object. More...

Protected Attributes
char *	m_rows_query

size_t	m_rows_query_length

Additional Inherited Members
Public Types inherited from mysql::binlog::event::Binary_log_event
enum	enum_post_header_length { QUERY_HEADER_MINIMAL_LEN = (4 + 4 + 1 + 2) , QUERY_HEADER_LEN = (QUERY_HEADER_MINIMAL_LEN + 2) , STOP_HEADER_LEN = 0 , START_V3_HEADER_LEN = (2 + ST_SERVER_VER_LEN + 4) , ROTATE_HEADER_LEN = 8 , INTVAR_HEADER_LEN = 0 , APPEND_BLOCK_HEADER_LEN = 4 , DELETE_FILE_HEADER_LEN = 4 , RAND_HEADER_LEN = 0 , USER_VAR_HEADER_LEN = 0 , FORMAT_DESCRIPTION_HEADER_LEN = (START_V3_HEADER_LEN + 1 + LOG_EVENT_TYPES) , XID_HEADER_LEN = 0 , BEGIN_LOAD_QUERY_HEADER_LEN = APPEND_BLOCK_HEADER_LEN , ROWS_HEADER_LEN_V1 = 8 , TABLE_MAP_HEADER_LEN = 8 , EXECUTE_LOAD_QUERY_EXTRA_HEADER_LEN = (4 + 4 + 4 + 1) , EXECUTE_LOAD_QUERY_HEADER_LEN , INCIDENT_HEADER_LEN = 2 , HEARTBEAT_HEADER_LEN = 0 , IGNORABLE_HEADER_LEN = 0 , ROWS_HEADER_LEN_V2 = 10 , TRANSACTION_CONTEXT_HEADER_LEN = 18 , VIEW_CHANGE_HEADER_LEN = 52 , XA_PREPARE_HEADER_LEN = 0 , TRANSACTION_PAYLOAD_HEADER_LEN = 0 }
	The lengths for the fixed data part of each event. More...

Static Public Attributes inherited from mysql::binlog::event::Binary_log_event
static const int	LOG_EVENT_TYPES = (ENUM_END_EVENT - 1)

Protected Member Functions inherited from mysql::binlog::event::Binary_log_event
	Binary_log_event (Log_event_type type_code)
	This constructor is used to initialize the type_code of header object m_header. More...

	Binary_log_event (const char *buf, const Format_description_event fde)
	This constructor will create a new object of Log_event_header and initialize the variable m_header, which in turn will be used to initialize Log_event's member common_header. More...

Detailed Description

Rows query event type, which is a subclass of the Ignorable_event, to record the original query for the rows events in RBR.

This event can be used to display the original query as comments by SHOW BINLOG EVENTS query, or mysqlbinlog client when the –verbose option is given twice

Binary Format

The Post-Header for this event type is empty. The Body has one component:

Body for Rows_query_event
Name	Format	Description
m_rows_query	char array	Records the original query executed in RBR
m_rows_query_length	integer	Stores the original query length executed in RBR

Constructor & Destructor Documentation

◆ Rows_query_event() [1/2]

mysql::binlog::event::Rows_query_event::Rows_query_event	(	const char *	buf,
		const Format_description_event *	fde
	)

It is used to write the original query in the binlog file in case of RBR when the session flag binlog_rows_query_log_events is set.

The buffer layout is as follows:
+------------------------------------+
| The original query executed in RBR |
+------------------------------------+

Parameters

buf	Contains the serialized event.
fde	An FDE event (see Rotate_event constructor for more info).

◆ Rows_query_event() [2/2]

mysql::binlog::event::Rows_query_event::Rows_query_event ( )

inline

It is the minimal constructor, and all it will do is set the type_code as ROWS_QUERY_LOG_EVENT in the header object in Binary_log_event.

◆ ~Rows_query_event()

mysql::binlog::event::Rows_query_event::~Rows_query_event ( )

override

Member Data Documentation

◆ m_rows_query

char* mysql::binlog::event::Rows_query_event::m_rows_query

protected

◆ m_rows_query_length

size_t mysql::binlog::event::Rows_query_event::m_rows_query_length