id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t	ALL	PRIMARY	NULL	NULL	NULL	495	Using where
1	SIMPLE	c	eq_ref	PRIMARY	PRIMARY	4	bsr.t.competition_id	1	Using index
1	SIMPLE	r	ref	idx-round-tournament_id	idx-round-tournament_id	4	bsr.t.tournament_id	1	Using index