2023-10-10 mysql-{mysql_rm_db}-失败后回滚-记录

摘要:

2023-10-10 mysql-{mysql_rm_db}-失败后回滚-记录

mysql_rm_db

完整函数代码：

 
/**
  Drop all tables, routines and events in a database and the database itself.
  @param  thd        Thread handle
  @param  db         Database name in the case given by user
                     It's already validated and set to lower case
                     (if needed) when we come here
  @param  if_exists  Don't give error if database doesn't exists
  @note   We do a "best effort" - try to drop as much as possible.
          If dropping the database itself fails, we try to binlog
          the drop of the tables we managed to do.
  @retval  false  OK (Database dropped)
  @retval  true   Error
*/
 
bool mysql_rm_db(THD *thd, const LEX_CSTRING &db, bool if_exists) {
  ulong deleted_tables = 0;
  bool error = false;
  char path[2 * FN_REFLEN + 1