diff options
Diffstat (limited to 'sql/log_event.h')
| -rw-r--r-- | sql/log_event.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sql/log_event.h b/sql/log_event.h index 9f14b30d2e2..5530444b0d4 100644 --- a/sql/log_event.h +++ b/sql/log_event.h @@ -264,7 +264,8 @@ struct sql_ex_info 1 + 1 + 255 /* type, length, time_zone */ + \ 1 + 2 /* type, lc_time_names_number */ + \ 1 + 2 /* type, charset_database_number */ + \ - 1 + 8 /* type, table_map_for_update */) + 1 + 8 /* type, table_map_for_update */ + \ + 1 + 4 /* type, master_data_written */) #define MAX_LOG_EVENT_HEADER ( /* in order of Query_log_event::write */ \ LOG_EVENT_HEADER_LEN + /* write_header */ \ QUERY_HEADER_LEN + /* write_data */ \ @@ -331,6 +332,10 @@ struct sql_ex_info #define Q_TABLE_MAP_FOR_UPDATE_CODE 9 +#define Q_MASTER_DATA_WRITTEN_CODE 10 + +/* Intvar event post-header */ + /* Intvar event data */ #define I_TYPE_OFFSET 0 #define I_VAL_OFFSET 1 @@ -1681,6 +1686,16 @@ public: statement, for other query statements, this will be zero. */ ulonglong table_map_for_update; + /* + Holds the original length of a Query_log_event that comes from a + master of version < 5.0 (i.e., binlog_version < 4). When the IO + thread writes the relay log, it augments the Query_log_event with a + Q_MASTER_DATA_WRITTEN_CODE status_var that holds the original event + length. This field is initialized to non-zero in the SQL thread when + it reads this augmented event. SQL thread does not write + Q_MASTER_DATA_WRITTEN_CODE to the slave's server binlog. + */ + uint32 master_data_written; #ifndef MYSQL_CLIENT |