Method invalidate

sql/sql_cache.cc:2232–2261

*/

void Query_cache::invalidate(THD *thd, TABLE_LIST *tables_used,
			     my_bool using_transactions)
{
  DBUG_ENTER("Query_cache::invalidate (table list)");
  if (is_disabled())
    DBUG_VOID_RETURN;

  using_transactions= using_transactions && thd->in_multi_stmt_transaction_mode();
  for (; tables_used; tables_used= tables_used->next_local)
  {
    DBUG_ASSERT(!using_transactions || tables_used->table!=0);
    if (tables_used->derived)
      continue;
    if (using_transactions &&
        (tables_used->table->file->table_cache_type() ==
        HA_CACHE_TBL_TRANSACT))
      /*
        tables_used->table can't be 0 in transaction.
        Only 'drop' invalidate not opened table, but 'drop'
        force transaction finish.
      */
      thd->add_changed_table(tables_used->table);
    else
      invalidate_table(thd, tables_used);
  }

  DEBUG_SYNC(thd, "wait_after_query_cache_invalidate");

  DBUG_VOID_RETURN;
}

void Query_cache::invalidate(THD *thd, CHANGED_TABLE_LIST *tables_used)
{