MySQL 8.0.31
Source Code Documentation
binary_log::Delete_rows_event Class Reference

Log row deletions. More...

#include <rows_event.h>

Inheritance diagram for binary_log::Delete_rows_event:
[legend]

Public Member Functions

 Delete_rows_event (const char *buf, const Format_description_event *fde)
 
 Delete_rows_event ()
 
- Public Member Functions inherited from binary_log::Rows_event
 Rows_event (Log_event_type type_arg)
 Constructs an event directly. More...
 
 Rows_event (const char *buf, const Format_description_event *fde)
 The constructor is responsible for decoding the event contained in the buffer. More...
 
 ~Rows_event () override
 
unsigned long long get_table_id () const
 
enum_flag get_flags () const
 
uint32_t get_null_bits_len () const
 
unsigned long get_width () const
 
- Public Member Functions inherited from binary_log::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_eventoperator= (const Binary_log_event &)=default
 
Binary_log_eventoperator= (Binary_log_event &&)=default
 
enum Log_event_type get_event_type () const
 Helper method. More...
 
const Log_event_headerheader () const
 Return a const pointer to the header of the log event. More...
 
Log_event_headerheader ()
 Return a non-const pointer to the header of the log event. More...
 
const Log_event_footerfooter () const
 Return a const pointer to the footer of the log event. More...
 
Log_event_footerfooter ()
 Return a non-const pointer to the footer of the log event. More...
 
Event_readerreader ()
 Returns a reference to the event Event_reader object. More...
 

Additional Inherited Members

- Public Types inherited from binary_log::Rows_event
enum  enum_flag { STMT_END_F = (1U << 0) , NO_FOREIGN_KEY_CHECKS_F = (1U << 1) , RELAXED_UNIQUE_CHECKS_F = (1U << 2) , COMPLETE_ROWS_F = (1U << 3) }
 These definitions allow to combine the flags into an appropriate flag set using the normal bitwise operators. More...
 
- Public Types inherited from binary_log::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 Member Functions inherited from binary_log::Rows_event
static std::string get_flag_string (enum_flag flag)
 
- Public Attributes inherited from binary_log::Rows_event
Extra_row_info m_extra_row_info
 
- Static Public Attributes inherited from binary_log::Binary_log_event
static const int LOG_EVENT_TYPES = (ENUM_END_EVENT - 1)
 
- Protected Member Functions inherited from binary_log::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...
 
- Protected Attributes inherited from binary_log::Rows_event
Log_event_type m_type
 
Table_id m_table_id
 Actual event type. More...
 
uint16_t m_flags
 
unsigned long m_width
 Flags for row-level events. More...
 
uint32_t n_bits_len
 The width of the columns bitmap. More...
 
uint16_t var_header_len
 value determined by (m_width + 7) / 8 More...
 
std::vector< uint8_t > columns_before_image
 
std::vector< uint8_t > columns_after_image
 
std::vector< uint8_t > row
 

Detailed Description

Log row deletions.

The event contain several delete rows for a table. Note that each event contains only rows for one table.

RESPONSIBILITIES

  • Act as a container for rows that has been deleted on the master and should be deleted on the slave.

Binary Format

Constructor & Destructor Documentation

◆ Delete_rows_event() [1/2]

binary_log::Delete_rows_event::Delete_rows_event ( const char *  buf,
const Format_description_event fde 
)

◆ Delete_rows_event() [2/2]

binary_log::Delete_rows_event::Delete_rows_event ( )
inline

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