Method open_and_lock_table

sql/sql_insert.cc:3463–3500

*/

bool Delayed_insert::open_and_lock_table()
{
  Delayed_prelocking_strategy prelocking_strategy;

  /*
    Use special prelocking strategy to get ER_DELAYED_NOT_SUPPORTED
    error for tables with engines which don't support delayed inserts.

    We can't do auto-repair in insert delayed thread, as it would hang
    when trying to an exclusive MDL_LOCK on the table during repair
    as the connection thread has a SHARED_WRITE lock.
  */
  if (!(table= open_n_lock_single_table(&thd, &table_list,
                                        TL_WRITE_DELAYED,
                                        MYSQL_OPEN_IGNORE_GLOBAL_READ_LOCK |
                                        MYSQL_OPEN_IGNORE_REPAIR,
                                        &prelocking_strategy)))
  {
    /* If table was crashed, then upper level should retry open+repair */
    retry= table_list.crashed;
    thd.fatal_error();                      // Abort waiting inserts
    return TRUE;
  }

  if (table->triggers || table->check_constraints || table->internal_tables)
  {
    /*
      Table uses triggers, check constraints or sequences. This is not an error,
      but we do not support these with delayed insert. Terminate the delayed
      thread without an error and thus request lock upgrade.
    */
    return TRUE;
  }
  table->copy_blobs= 1;

  table->file->prepare_for_row_logging();
  return FALSE;
}


/*