Function open_proc_table_for_update

sql/sp.cc:531–553

*/

static TABLE *open_proc_table_for_update(THD *thd)
{
  TABLE_LIST table_list;
  TABLE *table;
  MDL_savepoint mdl_savepoint= thd->mdl_context.mdl_savepoint();
  DBUG_ENTER("open_proc_table_for_update");

  DBUG_ASSERT(!thd->internal_transaction());

  table_list.init_one_table(&MYSQL_SCHEMA_NAME, &MYSQL_PROC_NAME, NULL,
                            TL_WRITE);

  if (!(table= open_system_table_for_update(thd, &table_list)))
    DBUG_RETURN(NULL);

  if (!proc_table_intact.check(table, &proc_table_def))
    DBUG_RETURN(table);

  thd->commit_whole_transaction_and_close_tables();
  thd->mdl_context.rollback_to_savepoint(mdl_savepoint);

  DBUG_RETURN(NULL);
}


/**