id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	st	ref	idx-stats_team-stats_layer,idx-stats_team-team_id,idx-stats_team-tournament_id	idx-stats_team-stats_layer	4	const	1	NULL
1	SIMPLE	t	eq_ref	PRIMARY	PRIMARY	4	bsr.st.tournament_id	1	Using where