ha_innodb.cc:

	prebuilt->sql_stat_start = TRUE;

	prebuilt->hint_no_need_to_fetch_extra_cols = TRUE;

	prebuilt->read_just_key = 0;

	prebuilt->select_lock_type = LOCK_NONE;

	if (prebuilt->select_lock_type == LOCK_NONE) {

	        /* This handle is for a temporary table created inside

	        this same LOCK TABLES; since MySQL does NOT call external_lock

	        in this case, we must use x-row locks inside InnoDB to be

	        prepared for an update of a row */

	        prebuilt->select_lock_type = LOCK_X;

	}

	thd->transaction.all.innodb_active_trans = 1;