Method reset_db

sql/sql_class.cc:1686–1697

*/

void THD::reset_db(const LEX_CSTRING *new_db)
{
  if (new_db->str != db.str || new_db->length != db.length)
  {
    if (db.str != 0)
      DBUG_PRINT("QQ", ("Overwriting: %p", db.str));
    mysql_mutex_lock(&LOCK_thd_data);
    db= *new_db;
    mysql_mutex_unlock(&LOCK_thd_data);
    PSI_CALL_set_thread_db(db.str, (int) db.length);
  }
}


/* Do operations that may take a long time */