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Bug#53189 Table map version unused and can be removed

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MYSQL_BIN_LOG m_table_map_version member and it's associated 
functions were not used in the logic of binlogging and replication,
this patch removed all related code.

sql/log.cc:
  removed unused m_table_map_version variable and functions
sql/log.h:
  removed unused m_table_map_version variable and functions
sql/log_event.h:
  Removed unused LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F flag
sql/sql_class.cc:
  Removed unused LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F flag
sql/sql_load.cc:
  Removed unused LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F flag
sql/table.cc:
  removed unused table_map_version variable
sql/table.h:
  removed unused table_map_version variable
This commit is contained in:
He Zhenxing
2010-05-08 11:25:33 +08:00
parent 721ec08190
commit df0b6707da
7 changed files with 6 additions and 69 deletions
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12
sql/table.cc
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@ -296,13 +296,6 @@ TABLE_SHARE *alloc_table_share(TABLE_LIST *table_list, char *key,
share->version= refresh_version;
/*
This constant is used to mark that no table map version has been
assigned. No arithmetic is done on the value: it will be
overwritten with a value taken from MYSQL_BIN_LOG.
*/
share->table_map_version= ~(ulonglong)0;
/*
Since alloc_table_share() can be called without any locking (for
example, ha_create_table... functions), we do not assign a table
@ -366,11 +359,6 @@ void init_tmp_table_share(THD *thd, TABLE_SHARE *share, const char *key,
share->path.length= share->normalized_path.length= strlen(path);
share->frm_version= FRM_VER_TRUE_VARCHAR;
/*
Temporary tables are not replicated, but we set up these fields
anyway to be able to catch errors.
*/
share->table_map_version= ~(ulonglong)0;
share->cached_row_logging_check= -1;
/*